How to install a jaw coupling hub?

Users can install jaw coupling hubs by following these steps: The customers should first buy a spider according to the selected hub (preferably from the same corresponding series) having the same specifications & parameters. After purchase, they should ensure that each component is free from contaminants, defects or cracks and match the shaft diameter to the bore size of the hubs. Before starting the coupling installation, users should ensure that the machinery is disconnected from all power sources. They should also not install it on unstable or moving equipment. The hubs having key slots should be fitted with the keys and slid fit into shafts for preventing slipping during shaft rotation. The keyless hubs can be attached directly to shafts using set screws. The users should insert a spider into a hub while ensuring that the spider opening is large enough to fit both the shaft & the optional key. Selected jaw coupling hubs can be overhung slightly or be moved back on the shafts for adjusting according to misalignments in shaft separation. Then, the second hub is brought near the first hub while keeping the guidelines in mind, such as the gap between hub faces. Users should check the set screw tightness & alignment before testing to prevent possible misalignment. Now the coupling is ready for operation, users should remove any material or tool away from the shaft and coupler. The equipment is ready to start up and test.

What is the difference between rigid and flexible jaw coupling?

Rigid couplings offer a rigid connection between two shafts that are firmly connected. They transfer torque smoothly throughout the system. These rigid couplings can't handle misalignment and shocks. Flexible couplings like jaw coupling hubs provide flexible connections and hence, can withstand shocks & misalignment up to a certain extent. However, there is a chance of some losses during torque transfer while using flexible jaw coupling.

What are some common mistakes the users make while selecting a jaw coupling hub?

Some common mistakes users make while selecting jaw coupling hubs are: Failing to check maximum bore capacity: Users should always check the shaft size of the driving equipment before purchasing a jaw coupling. Using same size couplings everywhere: Using the one-size-fits-all approach may seem like a good idea to prevent downtime. But an oversized or undersized jaw coupling may cause malfunctioning in motors and failed couplings. Ignoring heat and chemical compatibility: Since the jaw couplings require purchasing of both hubs and spiders, the customers should take note that both the coupling hub & spider materials are compatible with the required environments. Overlooking space restrictions: Users should make sure that the selected couplings according to required torque applications can fit the provided space. High torque applications require either a large diameter coupling to handle high torque or coupling with different designs & high torque density.

How to choose the right jaw coupling hub?

Customers can choose the right jaw coupling hubs for their needs according to the following points:Determining the usage.Choosing the material considering the intended application environment.Selecting the coupling on the basis of torque, speed, bore size and other factors.Jaw coupling hub types are based on usage and their ability to handle the degree of movement or rotation. For example, curved jaw coupling hubs (Lovejoy CJ Series) transfer high torque and can handle some degree of rotation (backlash) due to their curved jaw design.

What is the difference between keyway and keyless jaw coupling hubs?

Selected models of jaw coupling hubs feature a cutout slot in the mating part (hub) of the couplings, known as keyways. These slots or keyways fit in the keys or a separate mechanical attachment on the shafts or other mated tools. The use of 'Keys' leads to improved torque & prevents slipping. It also results in reduced losses due to vibrations & backlash (degree of free movement between two rotating, mating parts).However, some applications do not require keys, as keyless jaw coupling hubs use only set screw holding power to transfer torque. Keyless hubs are ideal for applications that cause no damages or injuries even if the shafts slip. Keyed jaw coupling hubs concentrate the stresses around the key or key slot, causing maintenance issues and efficiency losses. Keyless hubs distribute the load & hence require less maintenance.

Jaw Coupling Hubs

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Jaw couplings are flexible couplings that connect two shafts at their ends to transmit power. They consist of jaw coupling hubs and spiders for handling diverse temperature ranges, speed of equipment... Read More

LOVEJOY -

RRS And RRSC Type Hubs With Keyway, Inch Bores
Lovejoy jaw type couplings are designed for light, medium and heavy duty electrical motor and internal combustion power transmission. These couplings feature sintered iron construction for excellent tensile strength and a centre drop out design for proper shaft separation. They absorb shock and misalignment for reduced wear on the shaft assembly. Choose from a wide range of Lovejoy RRS & RRSC type spacer coupling assemblies, available in lengths ranging from 1.2 to 2.8 inches on Raptor Supplies.

Style	Model	Coupling Size	Bore Size	Keyway Size	Hub Style	Length through Bore	Outside Dia.	Material	Hub Length	Price (inc. GST)
A	68514441228	RRS090	7/8"	3/16" x 3/32"	1	0.81"	2.11"	Sintered Iron	1.24"	A$ 36.26	RFQ
A	68514451672	RRS090	1"	1/4" x 1/8"	1	0.81"	2.11"	Sintered Iron	1.24"	A$ 46.82
A	68514438143	RRS090	5/8"	3/16" x 3/32"	1	0.81"	2.11"	Sintered Iron	1.24"	A$ 36.26	RFQ
A	68514438144	RRS090	3/4"	3/16" x 3/32"	1	0.81"	2.11"	Sintered Iron	1.24"	A$ 36.26	RFQ
A	68514456512	RRS090	1/2"	1/8" x 1/16"	1	0.81"	2.11"	Sintered Iron	1.24"	A$ 36.26	RFQ
A	68514438150	RRS095	1 1/8"	1/4" x 1/8"	1	1"	2.11"	Sintered Iron	1.43"	A$ 55.55	RFQ
A	68514438149	RRS095	1"	1/4" x 1/8"	1	1"	2.11"	Sintered Iron	1.43"	A$ 55.55	RFQ
A	68514438146	RRS095	5/8"	3/16" x 3/32"	1	1"	2.11"	Sintered Iron	1.43"	A$ 55.55	RFQ
A	68514438147	RRS095	3/4"	3/16" x 3/32"	1	1"	2.11"	Sintered Iron	1.43"	A$ 55.55	RFQ
B	68514444474	RRS095	9/16"	-	1	1"	2.11"	Sintered Iron	1.430"	-	RFQ
A	68514438145	RRS095	1/2"	1/8" x 1/16"	1	1"	2.11"	Sintered Iron	1.43"	A$ 55.55	RFQ
A	68514438148	RRS095	7/8"	3/16" x 3/32"	1	1"	2.11"	Sintered Iron	1.43"	A$ 55.55	RFQ
A	68514438172	RRS099	1 1/8"	1/4" x 1/8"	1	1.06"	2.53"	Sintered Iron	1.65"	A$ 70.85	RFQ
A	68514438170	RRS099	7/8"	3/16" x 3/32"	1	1.06"	2.53"	Sintered Iron	1.65"	A$ 70.85	RFQ
A	68514438168	RRS099	5/8"	3/16" x 3/32"	1	1.06"	2.53"	Sintered Iron	1.65"	A$ 70.85	RFQ
A	68514438169	RRS099	3/4"	3/16" x 3/32"	1	1.06"	2.53"	Sintered Iron	1.65"	A$ 70.85	RFQ
A	68514438171	RRS099	1"	1/4" x 1/8"	1	1.06"	2.53"	Sintered Iron	1.65"	A$ 70.85	RFQ
B	68514438151	RRS100	1/2"	-	1	1.38"	2.53"	Sintered Iron	1.970"	-	RFQ
A	68514438153	RRS100	3/4"	3/16" x 3/32"	1	1.38"	2.53"	Sintered Iron	1.97"	A$ 101.76	RFQ
A	68514438152	RRS100	5/8"	3/16" x 3/32"	1	1.38"	2.53"	Sintered Iron	1.97"	A$ 101.76	RFQ
A	68514438156	RRS100	1 1/8"	1/4" x 1/8"	1	1.38"	2.53"	Sintered Iron	1.97"	A$ 101.76	RFQ
A	68514438155	RRS100	1"	1/4" x 1/8"	1	1.38"	2.53"	Sintered Iron	1.97"	A$ 101.76	RFQ
A	68514438154	RRS100	7/8"	3/16" x 3/32"	1	1.38"	2.53"	Sintered Iron	1.97"	A$ 101.76	RFQ
A	68514438158	RRS100	1 3/8"	5/16" x 5/32"	1	1.38"	2.53"	Sintered Iron	1.97"	A$ 101.76	RFQ
A	68514438157	RRS100	1 1/4"	1/4" x 1/8"	1	1.38"	2.53"	Sintered Iron	1.97"	A$ 101.76	RFQ

LOVEJOY -

RRS And RRSC Type Hubs Without Keyway, Inch Bores
Lovejoy jaw type couplings are used for power transmission to industrial equipment such as pumps, gearboxes, compressors, blowers, mixers & conveyors. These couplings have a centre drop out design for proper shaft separation. The nitrile butadiene (Buna N) rubber elastomer material is oil resistant and operates effectively in temperatures ranging between -40 & 212 deg F. They absorb shock and misalignment for reduced wear on the shaft assembly. Choose from a wide range of Lovejoy RRS & RRSC type spacer coupling assemblies, available in bore diameters ranging between 3/4 and 7/16 inches, on Raptor Supplies.

Style	Model	Coupling Size	Bore Size	Keyway Size	Hub Style	Length through Bore	Outside Dia.	Material	Hub Length	Price (inc. GST)
A	68514450357	RRS095	1/2"	-	1	1"	2.11"	Sintered Iron	1.430"	-	RFQ
B	68514441229	RRS095	7/16"	No Keyway	1	1"	2.11"	Sintered Iron	1.43"	A$ 55.55	RFQ
A	68514441230	RRS099	1/2"	-	1	1.060"	2.53"	Sintered Iron	1.650"	-	RFQ
A	68514452184	RRS099	7/16"	-	1	1.060"	2.53"	Sintered Iron	1.650"	-	RFQ
A	68514441231	RRS100	7/16"	-	1	1.38"	2.53"	Sintered Iron	1.970"	-	RFQ
A	68514452199	RRS100	1/2"	-	1	1.38"	2.53"	Sintered Iron	1.970"	-	RFQ
A	68514438159	RRS110	5/8"	-	1	1.68"	3.31"	Sintered Iron	2.440"	-	RFQ
A	68514445265	RRS150	5/8"	-	2	1.75"	3.75"	Sintered Iron	2.63"	-	RFQ
B	68514445273	RRS190	3/4"	No Keyway	-	1.94"	4.5"	Sintered Iron	2.82"	A$ 327.94	RFQ
A	68514445290	RRS225	3/4"	-	4	2.180"	5"	Cast Iron	3.060"	-	RFQ
A	68514445269	RRSC150	5/8"	-	2	1.75"	3.75"	Sintered Iron	2.63"	-	RFQ
A	68514445281	RRSC190	3/4"	-	3	1.94"	4.50"	Sintered Iron	2.820"	-	RFQ
A	68514445301	RRSC225	3/4"	-	4	2.180"	5"	Cast Iron	3.060"	-	RFQ

LOVEJOY -

CJ Series Hubs, Aluminium, A And B Style, Rough Stock Bore And Inch Bores

Style	Model	Coupling Size	Keyway Size	Hub Style	Bore Type	Outside Dia.	Overall Coupling Length	Material	Coupling Type	Price (inc. GST)
A	68514461989	-	-	-	-	-	-	-	-	A$ 205.33	RFQ
B	68514461983	CJ14/16	-	B	Bored	1.180"	1.380"	Aluminum	CJ	-	RFQ
C	68514471442	CJ19/24	No Keyway	B	Solid	1.57"	1.53"	Aluminum	CJ	A$ 34.50
C	68514471444	CJ24/32	No Keyway	B	Solid	2.2"	1.8"	Aluminum	CJ	A$ 53.27
C	68514471446	CJ28/38	No Keyway	B	Rough Stock Bore	2.56"	2.07"	Aluminum	CJ	A$ 86.46	RFQ
B	68514471448	CJ38/45	-	B	Unbored	3.150"	2.590"	Aluminum	CJ	A$ 135.71
C	68514471450	CJ42/55	No Keyway	B	Rough Stock Bore	3.74"	2.87"	Aluminum	CJ	A$ 259.42	RFQ
C	68514471451	CJ48/60	No Keyway	A	Solid	4.13"	3.16"	Aluminum	CJ	A$ 312.64
B	68514471452	CJ48/60	-	B	Unbored	4.130"	3.160"	Aluminum	CJ	-	RFQ

LOVEJOY -

L Type Hubs, Rough Stock Bore

Style	Model	Coupling Size	Bore Size	Length through Bore	Outside Dia.	Max. Bore	Hub Length	Material	Coupling Type	Price (inc. GST)
A	68514410219	L050	1/4"	0.62"	1.08"	0.625"	1.1"	Sintered Iron	L	A$ 17.29	RFQ
A	68514410427	L070	1/4"	0.75"	1.36"	0.75"	1.23"	Sintered Iron	L	A$ 16.17	RFQ
A	68514410695	L075	1/4"	0.82"	1.75"	0.875"	1.32"	Sintered Iron	L	A$ 18.75	RFQ
A	68514410779	L090	1/4"	0.82"	2.11"	1"	1.34"	Sintered Iron	L	A$ 28.44	RFQ
A	68514411095	L095	7/16"	1"	2.11"	1.125"	1.52"	Sintered Iron	L	A$ 43.16	RFQ
A	68514462578	L099	7/16"	1.06"	2.54"	1.188"	1.77"	Sintered Iron	L	A$ 57.54	RFQ
A	68514411525	L100	7/16"	1.38"	2.54"	1.375"	2.09"	Sintered Iron	L	A$ 81.62	RFQ
A	68514462449	L110	5/8"	1.68"	3.32"	1.625"	2.56"	Sintered Iron	L	A$ 116.42	RFQ
A	68514412123	L150	5/8"	1.75"	3.75"	1.875"	2.75"	Sintered Iron	L	A$ 142.11	RFQ
A	68514454033	L190	3/4"	1.94"	4.5"	2.125"	2.94"	Sintered Iron	L	A$ 204.04
A	68514456003	L225	3/4"	2.18"	5"	2.625"	3.18"	Cast Iron	L	A$ 255.32	RFQ

LOVEJOY -

L Type Hubs, Solid No Bore

Style	Model	Coupling Size	Length through Bore	Max. Bore	Hub Length	Outside Dia.	Material	Nominal Torque	Coupling Type	Price (inc. GST)
A	68514410129	L035	0.27"	0.375"	0.55"	0.63"	Sintered Iron	3.5 in.-lbs.	L	A$ 10.18
A	68514410218	L050	0.62"	0.625"	1.1"	1.08"	Sintered Iron	26.3 in.-lbs.	L	A$ 10.18	RFQ
A	68514411094	L095	1"	1.125"	1.52"	2.11"	Sintered Iron	194 in.-lbs.	L	A$ 63.34	RFQ
A	68514476172	L225	2.18"	2.625"	3.18"	5"	Steel	2340 in.-lbs.	L	A$ 1132.97	RFQ

LOVEJOY -

L Type Hubs, Special Short And Long Hubs

Style	Model	Coupling Size	Bore Size	Keyway Size	Length through Bore	Outside Dia.	Hub Length	Material	Coupling Type	Price (inc. GST)
A	68514410357	L050	5/16"	No Keyway	0.88"	1.08"	1.35"	Sintered Iron	L	A$ 303.66
A	68514410338	L050	1/2"	No Keyway	0.31"	1.08"	0.8"	Sintered Iron	L	A$ 49.33	RFQ
A	68514410359	L050	7/16"	No Keyway	0.88"	1.08"	1.35"	Sintered Iron	L	A$ 303.66	RFQ
A	68514410335	L050	1/4"	No Keyway	0.31"	1.08"	0.8"	Sintered Iron	L	A$ 14.10	RFQ
A	68514410337	L050	3/8"	No Keyway	0.31"	1.08"	0.8"	Sintered Iron	L	A$ 14.10	RFQ
A	68514410360	L050	1/2"	No Keyway	0.88"	1.08"	1.35"	Sintered Iron	L	A$ 303.66	RFQ
A	68514410362	L050	5/8"	No Keyway	0.88"	1.08"	1.35"	Sintered Iron	L	A$ 303.66	RFQ
A	68514441610	L050	1/2"	1/8"	0.31"	1.08"	0.8"	Sintered Iron	L	A$ 14.10	RFQ

LOVEJOY -

L Type Hubs, Splines And Special Bores

Style	Model	Coupling Size	Length through Bore	Outside Dia.	Material	Min. Bore	Price (inc. GST)
A	68514438568	L090	0.82"	2.11"	Sintered Iron	0.25"	A$ 174.85	RFQ
A	68514438569	L090	0.82"	2.11"	Sintered Iron	0.25"	A$ 174.01
A	68514438570	L090	0.82"	2.11"	Sintered Iron	0.25"	A$ 174.85	RFQ
A	68514437901	L095	1"	2.11"	Sintered Iron	0.437"	A$ 186.87	RFQ
A	68514437902	L095	1"	2.11"	Sintered Iron	0.437"	A$ 186.87	RFQ
A	68514437900	L095	1"	2.11"	Sintered Iron	0.437"	A$ 186.87	RFQ
A	68514438571	L099	1.06"	2.54"	Sintered Iron	0.437"	A$ 222.32
A	68514476203	L099	1.06"	2.54"	Sintered Iron	0.437"	A$ 493.22	RFQ
A	68514438574	L099	1.06"	2.54"	Sintered Iron	0.437"	A$ 222.32	RFQ
A	68514438573	L099	1.06"	2.54"	Sintered Iron	0.437"	A$ 227.25	RFQ
A	68514438572	L099	1.06"	2.54"	Sintered Iron	0.437"	A$ 222.32	RFQ
A	68514437906	L100	1.38"	2.54"	Sintered Iron	0.437"	A$ 265.17	RFQ
A	68514437904	L100	1.38"	2.54"	Sintered Iron	0.437"	A$ 265.17	RFQ
A	68514445213	L100	1.38"	2.54"	Sintered Iron	0.437"	A$ 265.17	RFQ
A	68514437907	L100	1.38"	2.54"	Sintered Iron	0.437"	A$ 265.17	RFQ
A	68514437905	L100	1.38"	2.54"	Sintered Iron	0.437"	A$ 265.17
A	68514455195	L100	1.38"	2.54"	Sintered Iron	0.437"	A$ 95.71
A	68514437915	L110	1.68"	3.32"	Sintered Iron	0.625"	A$ 288.41	RFQ
A	68514437911	L110	1.68"	3.32"	Sintered Iron	0.625"	A$ 288.41	RFQ
A	68514437914	L110	1.68"	3.32"	Sintered Iron	0.625"	A$ 288.41	RFQ
A	68514476228	L110	1.68"	3.32"	Sintered Iron	0.625"	A$ 349.65	RFQ
A	68514476501	L110	1.68"	3.32"	Sintered Iron	0.625"	A$ 345.66	RFQ
A	68514437912	L110	1.68"	3.32"	Sintered Iron	0.625"	A$ 288.41	RFQ
A	68514437913	L110	1.68"	3.32"	Sintered Iron	0.625"	A$ 288.41	RFQ
A	68514437916	L110	1.68"	3.32"	Sintered Iron	0.625"	A$ 288.41

LOVEJOY -

C Type Hubs With Rough Stock Bore
Lovejoy C-type couplings are ideal for transmitting power to industrial equipment such as pumps, gearboxes, compressors, blowers, mixers and conveyors. These jaw-type couplings feature cast-iron construction to handle higher torque rates and accommodate both angular and parallel shaft misalignments. They provide a standard shaft-to-shaft connection for medium-duty applications and ensure a fail-safe performance that continues to perform even if the elastomer fails. Choose from a wide range of these Lovejoy C-type couplings, available in 7/8, 1-1/2, 1-1/4 & 1-3/4 inch bore diameters on Raptor Supplies.

Style	Model	Coupling Size	Bore Size	Thread	Length through Bore	Outside Dia.	Hub Style	Material	Nominal Torque	Price (inc. GST)
A	68514440125	C226	7/8"	1/2-13	2.75"	5.15"	-	Cast Iron	2988 in.-lbs.	A$ 369.83	RFQ
A	68514440126	C276	7/8"	1/2-13	3.12"	6.18"	-	Cast Iron	4716 in.-lbs.	A$ 477.31	RFQ
A	68514426067	C280	1 1/4"	1/2-13	3.12"	7.5"	-	Cast Iron	7560 in.-lbs.	A$ 477.55	RFQ
A	68514441036	C285	1 1/4"	5/8-11	3.75"	8.5"	-	Cast Iron	9182 in.-lbs.	A$ 639.94
A	68514441037	C295	1 1/2"	5/8-11	3.75"	9.12"	-	Cast Iron	11340 in.-lbs.	A$ 871.32	RFQ
A	68514441038	C2955	1 3/4"	5/8-11	4.25"	9.12"	3	Cast Iron	18900 in.-lbs.	A$ 1056.70	RFQ

LOVEJOY -

H Type Coupling Hubs, Rough Stock Bore

Style	Model	Nominal Torque	Coupling Size	Dimension HD	Outside Dia.	Rated HP at 1,200 rpm	Rated HP at 1,800 rpm	Rated HP at 100 rpm	Rough Stock Bore	Price (inc. GST)
A	68514448070	-	H3067	-	-	-	-	-	-	A$ 5269.02	RFQ
B	68514450883	46632 in.-lbs.	H3567	7.750"	110"	888 hp	1332 hp	74 hp	2 5/8"	-	RFQ
B	68514447878	64812 in.-lbs.	H3667	8.750"	120"	1236 hp	1851 hp	103 hp	3"	-	RFQ
B	68514455473	88224 in.-lbs.	H4067	9.750"	13.250"	1680 hp	2520 hp	140 hp	3 1/4"	-	RFQ
B	68514455477	119700 in.-lbs.	H4567	10.750"	14.500"	2280 hp	-	190 hp	3 1/2"	-	RFQ

SURE MOTION -

Jaw/ Spider Aluminum Clamp-Style Drive Coupling Hubs

Style	Model	Price (inc. GST)
A	DC-JAC14-03	A$ 40.00	RFQ
B	DC-JAC40-10	A$ 88.00	RFQ
C	DC-JAC65-20	A$ 166.40	RFQ
D	DC-JAC55-22M	A$ 102.40	RFQ
E	DC-JAC55-19M	A$ 102.40	RFQ
F	DC-JAC55-14	A$ 102.40	RFQ
G	DC-JAC55-12	A$ 102.40	RFQ
H	DC-JAC55-10	A$ 102.40	RFQ
I	DC-JAC40-16M	A$ 88.00	RFQ
J	DC-JAC40-14M	A$ 88.00	RFQ
K	DC-JAC40-12M	A$ 88.00	RFQ
L	DC-JAC40-12	A$ 88.00	RFQ
M	DC-JAC40-10M	A$ 88.00	RFQ
N	DC-JAC40-08M	A$ 88.00	RFQ
O	DC-JAC14-04	A$ 40.00	RFQ
P	DC-JAC40-08	A$ 88.00	RFQ
Q	DC-JAC40-06	A$ 88.00	RFQ
R	DC-JAC30-12M	A$ 75.20	RFQ
S	DC-JAC30-10M	A$ 75.20	RFQ
T	DC-JAC30-08M	A$ 75.20	RFQ
U	DC-JAC30-08	A$ 75.20	RFQ
V	DC-JAC30-06	A$ 75.20	RFQ
W	DC-JAC30-05	A$ 75.20	RFQ
X	DC-JAC20-05	A$ 51.20	RFQ
Y	DC-JAC20-04	A$ 51.20	RFQ

LOVEJOY -

RRS And RRSC Type Hubs With Keyway, Metric Bores

Style	Model	Item	Hub Style	Bore Size	Coupling Size	Keyway Width	Length through Bore	Material	Max. Bore
A	68514455676	Hub	2	38mm	RRSC150	10mm x 3.3mm	44.45mm	Sintered Iron	48mm	RFQ
A	68514455677	Hub	2	40mm	RRSC150	12mm x 3.3mm	44.45mm	Sintered Iron	48mm	RFQ
A	68514455678	Hub	2	42mm	RRSC150	12mm x 3.3mm	44.45mm	Sintered Iron	48mm	RFQ
A	68514455680	Hub	3	38mm	RRSC190	10mm x 3.3mm	49.28mm	Cast Iron	54mm	RFQ
A	68514455681	Hub	3	40mm	RRSC190	12mm x 3.3mm	49.28mm	Cast Iron	54mm	RFQ
A	68514455682	Hub	3	42mm	RRSC190	12mm x 3.3mm	49.28mm	Cast Iron	54mm	RFQ
A	68514477511	RRS Type Hub	4	32mm	RRS225	10mm x 3.3mm	55.37mm	Cast Iron	67mm	RFQ

LOVEJOY -

GS Series Aluminum Hubs, Inch Bores

Style	Model	Dimension G	Bolt Hole Size	Bore Size	Dimension HD	Dimension TH	Keyway Width	Length through Bore	Max. Bore	Price (inc. GST)
A	68514476514	0.63"	-	5/8"	1.57"	0.12"	-	0.98"	0.938"	A$ 333.70	RFQ
B	68514476318	0.630"	-	5/8"	1.57"	0.12"	3/26" x 3/32"	0.980"	0.938"	-	RFQ
B	68514476513	0.630"	0.470"	7/8"	1.57"	0.12"	-	0.980"	0.938"	A$ 333.70
B	68514476523	0.630"	0.470"	1/2"	1.57"	0.12"	-	0.980"	0.938"	A$ 333.70
B	68514476175	0.790"	-	3/4"	2.560"	0.160"	3/16" x 3/32"	1.380"	1.5"	-	RFQ
B	68514476538	0.940"	0.790"	1 3/4"	3.15"	0.160"	-	1.770"	1.75"	A$ 516.97
B	68514476539	0.940"	0.790"	1 1/2"	3.15"	0.160"	-	1.770"	1.75"	A$ 492.33

TB WOODS -

L-Jaw Hub Couplings

Style	Model	Hub Material	Bore Dia.	Bore Size	Keyway Size	Length through Bore	Material	Max. Angular Misalignment	Max. Parallel Misalignment (In.)	Price (inc. GST)
A	AL09058	Alum"um	5/8"	5/8"	3/16" x 3/32"	0.81"	Aluminum	-	0.015"	A$ 34.52	RFQ
A	AL110114	Alum"um	1-1/4"	1 mm	1/4" x 1/8"	1.69"	Aluminum	-	0.015"	A$ 135.38	RFQ
A	AL09078	Alum"um	7/8"	7/8"	3/16" x 3/32"	0.81"	Aluminum	0.015"	0.015"	A$ 34.52	RFQ
A	AL150178	Alum"um	1-7/8"	1 mm	1/2" x 1/4"	1 3/4"	Aluminum	-	0.015"	A$ 221.10
A	AL150112	Alum"um	1-1/2"	1 mm	3/8" x 3/16"	1 3/4"	Aluminum	-	0.015"	A$ 207.53
B	AL07012NK	Alum"um	1/2"	1/2"	No Keyway	1 1/4"	Aluminum	0.015"	0.015"	A$ 20.44	RFQ
A	AL09534	Alum"um	3/4"	1 mm	3/16" x 3/32"	1"	Aluminum	-	0.015"	A$ 52.96	RFQ
A	AL07534	Alum"um	3/4"	1 mm	3/16" x 3/32"	0.81"	Aluminum	0.015"	0.015"	A$ 22.50	RFQ
A	AL150114	Alum"um	1-1/4"	1 mm	1/4" x 1/8"	1 3/4"	Aluminum	-	0.015"	A$ 217.45
B	AL05014NK	Alum"um	1/4"	1/4"	No Keyway	0.63"	Aluminum	0.015"	0.015"	A$ 13.54
B	AL05038NK	Alum"um	3/8"	3/8"	No Keyway	0.63"	Aluminum	-	0.015"	A$ 13.54
A	AL150158	Alum"um	1-5/8"	1 mm	3/8" x 3/16"	1 3/4"	Aluminum	-	0.015"	A$ 221.10
A	AL095118	Alum"um	1-1/8"	1 mm	1/4" x 1/8"	1"	Aluminum	0.015"	0.015"	A$ 52.96	RFQ
A	AL07578	Alum"um	7/8"	7/8"	3/16" x 3/32"	0.81"	Aluminum	-	0.015"	A$ 22.50	RFQ
A	AL1101	Alum"um	1"	1"	1/4" x 1/8"	1.69"	Aluminum	-	0.015"	A$ 135.38	RFQ
A	AL1001	Alum"um	1"	1"	1/4" x 1/8"	1.38"	Aluminum	0.015"	0.015"	A$ 105.22	RFQ
A	AL09034	Alum"um	3/4"	1 mm	3/16" x 3/32"	0.81"	Aluminum	-	0.015"	A$ 34.52	RFQ
A	AL150138	Alum"um	1-3/8"	1 mm	5/16" x 5/32"	1 3/4"	Aluminum	0.015"	0.015"	A$ 221.10
A	AL110112	Alum"um	1-1/2"	1 mm	3/8" x 3/16"	1.69"	Aluminum	-	0.015"	A$ 135.38	RFQ
B	AL05012NK	Alum"um	1/2"	1/2"	No Keyway	0.63"	Aluminum	-	0.015"	A$ 13.54
B	AL05058NK	Alum"um	5/8"	5/8"	No Keyway	0.63"	Aluminum	-	0.015"	A$ 13.54	RFQ
B	AL0505/16NK	Alum"um	5/16"	5/16"	No Keyway	0.63"	Aluminum	-	0.015"	A$ 13.54
A	AL150134	Alum"um	1-3/4"	1 mm	3/8" x 3/16"	1 3/4"	Aluminum	-	0.015"	A$ 204.75
A	AL07512	Alum"um	1/2"	1/2"	1/8" x 1/16"	0.81"	Aluminum	-	0.015"	A$ 22.50	RFQ
B	AL0707/16NK	Alum"um	7/16"	7/16"	No Keyway	1 1/4"	Aluminum	-	0.015"	A$ 20.44

SUNG IL MACHINERY -

SJC Series Drive Coupling Hubs

Style	Model	Price (inc. GST)
A	SJC-25C-8	A$ 40.00	RFQ
B	SJC-100C-30	A$ 332.80	RFQ
C	SJC-100C-55	A$ 332.80	RFQ
D	SJC-100C-50	A$ 332.80	RFQ
E	SJC-100C-45	A$ 332.80	RFQ
F	SJC-100C-40	A$ 332.80	RFQ
G	SJC-100C-35	A$ 332.80	RFQ
H	SJC-100C-32	A$ 332.80	RFQ
I	SJCB-40C-9.525	A$ 59.20	RFQ
J	SJC-14C-3	A$ 33.60	RFQ
K	SJCB-40C-8	A$ 59.20	RFQ
L	SJCB-40C-22	A$ 59.20	RFQ
M	SJCB-40C-19	A$ 59.20	RFQ
N	SJCB-40C-16	A$ 59.20	RFQ
O	SJCB-40C-15.875	A$ 59.20	RFQ
P	SJCB-40C-14	A$ 59.20	RFQ
Q	SJC-100C-60	A$ 332.80	RFQ
R	SJC-14C-4	A$ 33.60	RFQ
S	SJCB-40C-12	A$ 59.20	RFQ
T	SJC-20C-7.93	A$ 36.80	RFQ
U	SJC-25C-6	A$ 40.00	RFQ
V	SJC-25C-5	A$ 40.00	RFQ
W	SJC-25C-14	A$ 40.00	RFQ
X	SJC-25C-10	A$ 40.00	RFQ
Y	SJC-20C-9.525	A$ 36.80	RFQ

MARTIN SPROCKET -

Universal Series Jaw Couplings

Style	Model	Price (inc. GST)
A	ML150 13/16	A$ 161.92	RFQ
A	ML110 13/16	A$ 126.49
A	ML099 7/8	A$ 67.80
A	ML110 1 3/16	A$ 126.49
A	ML225 1 5/8	A$ 320.23
B	ML035 1/8	A$ 8.26
C	ML100BLK 1/2	A$ 100.53
A	ML150 11/16	A$ 161.92
A	ML225 2 1/2	A$ 320.23
A	ML095 7/8	A$ 53.62
A	ML110 11/16	A$ 126.49
A	ML150 1 9/16	A$ 161.92
A	ML090 11/16	A$ 35.08
A	ML090 15/16	A$ 35.08
A	ML099 1 5/16	A$ 67.80
A	ML110 1 9/16	A$ 126.49
A	ML095 15/16	A$ 53.62
A	ML099 15/16	A$ 67.80
A	ML225 1 1/8	A$ 320.23
A	ML225 1 11/16	A$ 320.23
A	ML090 1 1/8	A$ 35.08
B	ML090 3/8	A$ 35.08
A	ML095 1 1/16	A$ 53.62
A	ML190 1 3/8	A$ 273.55
A	ML110 7/8	A$ 126.49

MARTIN SPROCKET -

Super Series Jaw Couplings

Style	Model	Price (inc. GST)
A	MS050 7/16	A$ 12.58
B	MS099 15/16	A$ 67.80
B	MS225 15/16	A$ 320.23
B	MS095 1	A$ 53.62
B	MS050 9/16	A$ 12.58
B	MS075 5/8	A$ 25.16
B	MS099 9/16	A$ 67.80
C	MS190BLK 1 3/8	A$ 273.55
B	MS090 9/16	A$ 35.08
B	MS099 3/4	A$ 67.80
B	MS225 1 5/8	A$ 320.23
B	MS075 13/16	A$ 25.16
B	MS090 7/8	A$ 35.08
B	MS225 1 1/4	A$ 320.23
B	MS090 1 1/16	A$ 35.08
B	MS095 1 1/16	A$ 53.62
C	MS100BLK 1 1/4	A$ 100.53
B	MS110 1 1/8	A$ 126.49
C	MS190BLK 3/4	A$ 273.55
B	MS150 1 5/8	A$ 161.92
A	MS110 1/2	A$ 126.49
B	MS190 1 11/16	A$ 273.55
B	MS190 1 1/16	A$ 273.55
B	MS110 7/8	A$ 126.49
B	MS090 13/16	A$ 35.08

MARTIN SPROCKET -

Universal Series Jaw Couplings, Stainless Steel

Style	Model	Price (inc. GST)
A	ML095SS 3/4	A$ 215.54
B	ML150SS 1	A$ 551.37
C	ML100SS 1 3/8	A$ 253.77
D	ML110SS 1 5/8	A$ 412.83
E	ML110SS 1	A$ 412.83
F	ML150SS 1 3/8	A$ 551.37
G	ML150SS 1 7/8	A$ 551.37
H	ML150SS 1 3/4	A$ 551.37
I	ML110SS 1 3/8	A$ 412.83
C	ML095SS 1	A$ 215.54
J	ML095SSBLK 7/16	A$ 204.75
K	ML095SS 1/4	A$ 215.54
L	ML075SS 1/4	A$ 188.32
M	ML095SS 7/8	A$ 215.54
N	ML150SS 1 1/2	A$ 551.37
O	ML110SSBLK 5/8	A$ 392.17
P	ML100SS 7/8	A$ 253.77
Q	ML095SS 1/2	A$ 215.54
R	ML090SSBLK 1/4	A$ 184.96
S	ML100SS 3/4	A$ 253.77
T	ML095SS 5/8	A$ 215.54
U	ML150SS 1 5/8	A$ 551.37
C	ML100SS 1 1/8	A$ 253.77
V	ML075SS 5/8	A$ 188.32
W	ML075SS 1/2	A$ 188.32

BOSTON GEAR -

Jaw Coupling Hubs

Style	Model	Bore Dia.	Keyway Size	Outside Dia.	Overall Length	Size	Price (inc. GST)
A	SSFC20-1	1"	1/4" x 1/8"	2"	3.69"	SSFC20	A$ 415.51
A	SSFC30 1	1"	1/4" x 1/8"	3"	5.470"	SSFC30	A$ 856.39
A	SSFC25 1	1"	1/4" x 1/8"	2.5"	4.13"	SSFC25	A$ 457.16
A	SSFC30 1 1/4	1.25"	1/4" x 1/8"	3"	5.470"	SSFC30	A$ 856.39
A	SSFC25 1 1/4	1.25"	1/4" x 1/8"	2.5"	4.13"	SSFC25	A$ 457.16
A	SSFC30 1 3/8	1.375"	5/16" x 5/32"	3"	5.470"	SSFC30	A$ 856.39
A	SSFC12 1/2	1/2"	1/8" x 1/16"	1.25"	2.31"	SSFC12	A$ 235.18
A	SSFC15 1/2	1/2"	1/8" x 1/16"	1.5"	2.75"	SSFC15	A$ 312.91
A	SSFC15 3/4	3/4"	3/16" x 3/32"	1.5"	2.75"	SSFC15	A$ 312.91
A	SSFC20 3/4	3/4"	3/16" x 3/32"	2"	3.69"	SSFC20	A$ 388.30
A	SSFC25 3/4	3/4"	3/16" x 3/32"	2.5"	4.13"	SSFC25	A$ 457.16
A	SSFC12 3/8	3/8"	3/32" x 3/64"	1.25"	2.31"	SSFC12	A$ 235.18
A	SSFC15 5/8	5/8"	3/16" x 3/32"	1.5"	2.75"	SSFC15	A$ 312.91
A	SSFC20 5/8	5/8"	3/16" x 3/32"	2"	3.69"	SSFC20	A$ 388.30
A	SSFC20 7/8	7/8"	3/16" x 3/32"	2"	3.69"	SSFC20	A$ 388.30
B	SSFC38-SOLID	Solid	None	3.75"	6.31"	SSFC38	A$ 1885.11
B	SSFC12 SOLID	Solid	None	1.25"	2.31"	SSFC12	A$ 163.68
B	SSFC30 SOLID	Solid	None	3"	5.470"	SSFC30	A$ 785.69
B	SSFC25 SOLID	Solid	None	2.5"	4.13"	SSFC25	A$ 385.66
B	SSFC20 SOLID	Solid	None	2"	3.69"	SSFC20	A$ 317.02
B	SSFC15 SOLID	Solid	None	1.5"	2.75"	SSFC15	A$ 241.49
B	SSFC45-SOLID	Solid	None	4.5"	7.19"	SSFC45	A$ 3580.57

SURE MOTION -

Beam-Style Servo Stainless Steel Set-Screw Couplings

Style	Model	Price (inc. GST)
A	DC-SBS19-0404	A$ 158.40	RFQ
B	DC-SBS25-0808	A$ 195.20	RFQ
C	DC-SBS32-1010	A$ 214.40	RFQ
D	DC-SBS38-1212	A$ 246.40	RFQ
E	DC-SBS44-1414	A$ 422.40	RFQ
F	DC-SBS51-1616	A$ 492.80	RFQ
G	DC-SBS63-2020	A$ 566.40	RFQ

SUNG IL MACHINERY -

SHR Series High Gain Couplings

Style	Model	Price (inc. GST)
A	SHR-43C-14-14	A$ 217.60	RFQ
B	SHR-29C-12-14	A$ 163.20	RFQ
C	SHR-55C-25-25	A$ 281.60	RFQ
D	SHR-18C-4-8	A$ 142.40	RFQ
E	SHR-18C-5-8	A$ 142.40	RFQ
F	SHR-18C-6.35-8	A$ 142.40	RFQ
G	SHR-18C-6-8	A$ 142.40	RFQ
H	SHR-18C-8-8	A$ 142.40	RFQ
I	SHR-24C-8-10	A$ 150.40	RFQ
J	SHR-24C-8-12	A$ 150.40	RFQ
K	SHR-24C-8-8	A$ 150.40	RFQ
L	SHR-29C-10-14	A$ 163.20	RFQ
M	SHR-29C-14-14	A$ 163.20	RFQ
N	SHR-55C-24-24	A$ 281.60	RFQ
O	SHR-29C-8-10	A$ 163.20	RFQ
P	SHR-29C-8-12	A$ 163.20	RFQ
Q	SHR-29C-8-14	A$ 163.20	RFQ
R	SHR-29C-8-8	A$ 163.20	RFQ
S	SHR-38C-14-14	A$ 192.00	RFQ
T	SHR-38C-14-16	A$ 192.00	RFQ
U	SHR-38C-14-18	A$ 192.00	RFQ
V	SHR-38C-14-19	A$ 192.00	RFQ
W	SHR-38C-14-20	A$ 192.00	RFQ
X	SHR-38C-19-19	A$ 192.00	RFQ
Y	SHR-55C-24-25	A$ 281.60	RFQ

SURE MOTION -

Oldham Aluminum Clamp-Style Drive Coupling Hubs

Style	Model	Price (inc. GST)
A	DC-DAC19-04	A$ 56.00	RFQ
B	DC-DAC41-12	A$ 121.60	RFQ
C	DC-DAC57-16M	A$ 272.00	RFQ
D	DC-DAC57-16	A$ 272.00	RFQ
E	DC-DAC57-12	A$ 272.00	RFQ
F	DC-DAC57-10	A$ 272.00	RFQ
G	DC-DAC50-19M	A$ 249.60	RFQ
H	DC-DAC50-16M	A$ 249.60	RFQ
I	DC-DAC50-16	A$ 249.60	RFQ
J	DC-DAC50-14M	A$ 249.60	RFQ
K	DC-DAC50-12	A$ 249.60	RFQ
L	DC-DAC50-10	A$ 249.60	RFQ
M	DC-DAC50-08	A$ 249.60	RFQ
N	DC-DAC41-19M	A$ 121.60	RFQ
O	DC-DAC41-16M	A$ 121.60	RFQ
P	DC-DAC41-14M	A$ 121.60	RFQ
Q	DC-DAC41-10	A$ 121.60	RFQ
R	DC-DAC19-05M	A$ 56.00	RFQ
S	DC-DAC41-08	A$ 121.60	RFQ
T	DC-DAC33-16M	A$ 107.20	RFQ
U	DC-DAC33-14M	A$ 110.40	RFQ
V	DC-DAC33-12M	A$ 110.40	RFQ
W	DC-DAC33-10M	A$ 107.20	RFQ
X	DC-DAC33-10	A$ 110.40	RFQ
Y	DC-DAC33-08	A$ 110.40	RFQ

123 4

Jaw Coupling Hubs

Jaw couplings are a type of flexible couplings designed to link two rotating shafts that are not properly aligned for transferring the rotational power or torque from one shaft to another. The jaw couplings are suitable for diverse industrial applications due to their versatile & robust construction and good speed capability, chemical resistance & dampening capability. Jaw couplings are easy to install, as they consist of only two jaw coupling hubs and a spider. These jaw coupling hubs are attached to the shafts and the spider flexes between the hubs for accommodating the misalignment & shocks. Shaft misalignments are mostly radial, parallel or angular and cause complications to transferring rotational power from one shaft to the other in the form of loads, vibrations, stresses and other forces, which change as per the type of misalignment.
The jaw coupling hubs are popular due to their fail-safe design that ensures interlocking of the coupling & continued operation (up to a certain extent) even after the elastomeric spider fails, wears out or gets loosened. Unlike gear, grid or chain couplings, jaw coupling hubs are also maintenance-free as they do not require periodic application of grease or additional maintenance (provided that the spider remains intact). These jaw coupling hubs are made of cast iron, powder metal, sintered iron, sintered carbon steel, steel or zinc alloy to ensure high compression strength and durability. They are also offered in aluminium or stainless steel construction for lightweight and resistance to corrosion in food & pharmaceutical environments.
Lovejoy jaw coupling hubs are available in two broad types: straight jaw coupling hubs and curved jaw coupling hubs. Straight jaw hubs are made from a diverse range of materials and feature straight jaws for adjusting to various styles of spiders. They are used with open centre spiders, snap wrap spiders with retainer rings; closed centre spiders having Nitrile Butadiene (Buna N), urethane, Hytrel or bronze construction. Curved jaw coupling hubs (Lovejoy CJ Series) on the other hand, feature a curved jaw profile that concentrates the torque to the central region of the spider's limbs, thereby improving the efficiency of the elastomer material and reduces rotational backlash. They are mostly used with open centre elastomeric spiders to accommodate shafts having little separation.
Choose from a wide range of these jaw coupling hubs, available in both unbored and bored variants on Raptor Supplies. The bored variants are offered in bore sizes ranging from 1/8 to 4 inches.

Uses

Jaw coupling hubs are ideal for linking two shafts when used in conjunction with elastomeric inserts or spiders to form couplings. These jaw coupling hubs are used in a wide range of motion control (servo) applications, such as conveyors, escalators, motor vehicles, forestry, agricultural & mining equipment in robotics, automobile, aeronautics and space industries.

Features

Jaw coupling hubs in conjunction with spiders form jaw couplings and are used to transmit rotational power from one shaft to another.
They are equipped with an optional bore or a hole at the centre of the hub for ease of mounting on the shafts. Users can identify the bore size or bore diameter of a hub for selecting a correct sized jaw coupling hub for their use.
These hub bores may also have keyway slots to fit a key and prevent slipping of the hub on the rotating shaft. Keyway size indicates the height and width of the keyway slot to fit in the right sized key.
The jaw coupling hubs have an effective length through the bore to help them slide-fit on the shaft & the optional key.
These hubs handle the torque from the driving shaft and pass it onto a driven shaft while handling shocks, vibrations & angular misalignment. Torque refers to the applied force causing rotational motion. In imperial units, torque is expressed as inch-pounds (in.-lbs.) whereas, in metrics, it is expressed as Newton-meters (Nm).
They have diverse types of designs, constructions and bore tolerances for handling a wide range of rotational speeds (maximum speed).
These jaw coupling hubs feature fail-safe mechanism for continuing the operation up to a certain time, in case the shock-absorbing spider inserts wear down or fail to interlock.
They provide highly reliable service without any metal to metal contact to prevent regular wear & tear.
These jaw coupling hubs are resistant to oil, dirt, moisture & grease for ensuring long term operation.

Working Mechanism

A jaw coupling is made of three parts: two metallic hubs (jaw coupling hub) and an elastomer insert / element or spider. The spider has many lobes to fit the jaws of hubs alternatively for a tight press fit. Once the machinery starts running & the driving shaft starts rotating, the hub jaws attached to the driving shaft push towards the driven hub jaws and thereby towards the stationary shaft.
The jaws being locked together leads to torque transfer and rotation of the stationary shaft. The jaw coupling torque is then transmitted through the elastomer / spider lobes compressed between the hub jaws. These elastomeric spider legs act as coupling absorbers and help in cushioning the force between the driving & driven jaws. They absorb the vibration and shock from torque transfer and consequently protect the surrounding components from getting damaged.

Standards and Approvals

Lovejoy jaw coupling hubs meet the ANSI/AGMA 9002-B04 or 9112-A04 and ISO 9001:2008 industry standards for superior performance of the hubs.

Categories

Brands

Jaw Coupling Hubs

CJ Series Hubs, Aluminium, A And B Style, Rough Stock Bore And Inch Bores

L Type Hubs, Rough Stock Bore

L Type Hubs, Solid No Bore

L Type Hubs, Special Short And Long Hubs

L Type Hubs, Splines And Special Bores

H Type Coupling Hubs, Rough Stock Bore

Jaw/ Spider Aluminum Clamp-Style Drive Coupling Hubs

RRS And RRSC Type Hubs With Keyway, Metric Bores

GS Series Aluminum Hubs, Inch Bores

L-Jaw Hub Couplings

SJC Series Drive Coupling Hubs

Universal Series Jaw Couplings

Super Series Jaw Couplings

Universal Series Jaw Couplings, Stainless Steel

Jaw Coupling Hubs

Beam-Style Servo Stainless Steel Set-Screw Couplings

SHR Series High Gain Couplings

Oldham Aluminum Clamp-Style Drive Coupling Hubs

Jaw Coupling Hubs

Uses

Features

Working Mechanism

Standards and Approvals

Frequently Asked Questions

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