Jaw Couplings

Sizes 19 to 48 are now in stock, bored and keyed and ready to be delivered. These are low cost, no fuss shaft couplings. The JAW shaft couplings are available in steel, cast iron and aluminium and can come with ATEX approval if requested. To suit shaft sizes from 6mm to 100mm or supplied pilot bored. The curved jaw coupling design consists of an elastic “spider” and two hubs. The spider, made of an advanced polyurethane material, provides dampening of impulse loads, minimizing shock to the motor and other sensitive equipment.

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ABSSAC has invested heavily in stock of both hubs and associated spiders of the industry standard Jaw shaft coupling to ensure fast delivery. The Jaw couplings are a low cost, no fuss shaft coupling. The jaw type shaft couplings are available in cast iron and aluminium. All hubs are stocked with bore and keyways to suit shaft sizes from 6mm to 60 mm or supplied pilot bored. Rated from 10Nm up to 665Nm they are a direct alternative to other industrial jaw couplings.

Competitively priced and available immediately from stock, the curved jaw coupling design consists of an elastic “spider” and two hubs. The spider is made of an advanced polyurethane material, providing dampening of impulse loads and minimising shock to the motor. The spiders also allow the user to customise the jaw coupling’s performance. Selecting a soft spider will give the jaw coupling the greatest dampening characteristics, while a hard spider will provide the greatest torque capacity.

Larger sizes are available on request. Please call one of our sales engineers to ensure correct product selection - 01386 421005

Elastic spider and two hubs makes complete coupling
Jaw Shaft coupling
Jaw (short) Shaft coupling
Have you heard ?
Choose a spider to suit the application
L Jaw shaft coupling
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- Published: Tuesday 19th April 2016
- Updated: Thursday 4th March 2021

Type	Spider rated torque (Nm)
Type	92 Sh A	98 Sh A	64 Sh D
19	10	17	21
24	35	60	75
28	95	160	200
38	190	325	405
42	265	450	560
48	310	525	655
55	410	685	825
65	625	940	1175
75	1280	1920	2400
90	2400	3600	4500
100	3300	4950	6185
110	4800	7200	9000
125	6650	10000	12500

The spider types (by size) are then matched to the following hub sizes. Each hub size is available in a range of pre-bored sizes. To make a complete shaft coupling you will require two hubs and one spider.

There are three standard spider materials offering different torque capabilities to choose from. All spiders have an open centres to allow minimum DBSE.

92 Sh-A Purple Spider - (10Nm to 6650Nm) Suitable for use with all hub materials, offering high dampening properties. Ideal for use in general engineering.(Spider can also be yellow in colour)

98 Sh-A Red Spider - (17Nm to 10000Nm) Suitable for use with cast iron and steel hubs, offering medium torque capacity and dampening properties.

64 Sh-G Green Spider - (21Nm to 12500Nm) Suitable for use with cast iron and steel hubs, offering high torque capacity and minimal dampening properties.

Type	Material	Pilot bored	Available bore sizes H7 with keyway in (mm)
Type	Material	Pilot bored	6	8	9	10	11	12	14	15	16	17	18	19	20	22	24	25	26	28	30	32	35	38	40	42	45	48	50	55	60	65	70	75	80	85	90	100
19	AL-D	•		•		•	•	•	•	•	•	•	•	•
	AL-D	19	•	AL-D													•		•
	19	St	•		•	•	•	•	•	•	•	•	•	•	•	•	•	•	•
24	AL-D	•				•	•	•	•	•	•	•	•	•	•	•	•
	AL-D	24	•	AL-D															•	•		•
	24	St	•				•		•	•	•	•	•	•	•	•	•	•	•		•	•	•
28	AL-D	•						•	•		•		•	•	•	•	•	•		•
	AL-D	28	•	AL-D																		•	•	•	•	•
	28	St	•							•	•	•		•	•	•	•	•	•	•	•	•	•	•		•
38	St	•													•		•	•		•	•	•	•	•	•	•		•
	38	GG	•									•		•	•	•	•	•	•		•	•	•	•	•
	38GG	GG	•																						•	•	•	•	•
42	St	•																•	•		•	•	•	•	•	•	•	•	•	•
	42	GG	•											•		•	•	•	•		•	•	•	•	•	•	•
	42GG	GG	•																								•	•	•	•	•
48	St	•																•			•	•	•	•	•	•	•	•	•	•	•
	48	GG	•															•	•		•	•	•	•	•	•	•	•	•
	48GG	GG	•																										•	•	•	•
55	St	•																•			•	•	•	•	•	•	•	•	•
	55	GG	•																												•	•	•
	55GG	GG	•																				•	•	•				•			•
65	GG	•																				•	•	•	•	•	•	•	•	•	•	•
65	65	St	•																							•			•	•	•	•	•	•	•	•
75	GG	•																					•		•		•	•	•	•	•	•	•	•
75	75	St	•																											•	•	•	•		•		•	•
90	GG	•																									•		•	•	•	•	•	•	•	•	•
90	90	St	•																													•	•	•	•	•		•	•

Hub Material

AL-D = Aluminium

St = Steel

GG = Cast Iron

L Jaw shaft coupling

The TBWoods L Jaw couplings are designed to meet high-quality standards whilst remaining affordable. The L-Jaw type Elastomeric coupling is available with four insert / spider materials, Burna-N, Urethane, Hytrel and bronze as standard making it adaptable for variable-speed and variable- torque applications .

Key features for L-Jaw

To suit shaft diameters 3mm to 70mm
100% interchangeable with industry-standard designs.
L-Jaw offer reliable solutions for uniform to heavy loads
L-Jaw uses easily replaceable individual cushions for maximum reliability with heavy torque loads
Built for durability, designed for extreme conditions
Ideal for use with variable-speed and variable- torque applications
No lubrication
No maintenance.

Ideal solutions for applications ranging from standard-duty electric motors to steam turbines and high-torque motors. The Jaw couplings are available in a wide range of sizes using BTS (bored to suit) hubs.

Ideal solutions for applications ranging from standard-duty electric motors to steam turbines and high-torque motors.

If you require further technical information, please do not hesitate to contact our sales engineers who will be more than happy to help you with your selection.