H Type – Highest Torque Jaw Coupling

  • Highest torque and bore capacity jaw coupling (compared to L & C Type)
  • Elastomeric cushions are radially removable
  • Accommodates for angular and parallel shaft misalignment
  • Fail-safe (will still perform if elastomeric cushions fail)
  • No coupling grease required; no metal to metal contact
  • Resistant to oil, dirt, sand, moisture, and grease
H Type – Highest Torque Jaw Coupling

H Type – Highest Torque Jaw Coupling Additional Resources

Click here to access Lovejoy’s Digital Parts Catalog for H Type components.

A full H Type coupling is comprised of 4 components:

  • 2 cast iron hubs (each including an inside sleeve)
  • 1 elastomeric cushion set (SOX, Hytrel®, or Bronze)
  • 1 collar w/ hardware

Max Bore

Spider Material

     

SOX (NBR) Torque

Urethane Torque

Hytrel® Torque

Bronze Torque

Size

in

Mm

in-lbs

Nm

in-lbs

Nm

in-lbs

Nm

in-lbs

Nm

H3067

4.5

114

33,395

3774

47,196

5333

47,196

5333

H3567

5

127

46,632

5269

63,000

7119

63,000

7119

H3667

5.629

143

64,812

7323

88,200

9966

88,200

9966

H4067

6.25

159

88,224

9969

126,000

14237

126,000

14237

H4567

7

178

119,700

13524

170,004

19209

170,000

19209

Note: Bronze has a maximum RPM capability of 250 RPM.

Material

Temperature
Range

Misalignment

Shore
Hardness

Dampening
Capacity

Chemical
Resistance

Color

 

 

Angular

Parallel

       
SOX (NBR) Rubber –
Nitrile Butadiene (Buna N)
Rubber is a flexible elastomer
material that is oil resistant,
resembles natural rubber in
resilience and elasticity.

-40°F to 212°F
(-40°C to 100°C)

0.015

80A

High

Good

Black

Hytrel® –
Flexible elastomer designed for
high torque and high
temperature operations.
Excellent resistance to oil and
chemicals. Not recommended
for cyclic or start/stop
applications.

-60°F to 250°F
(-51°C to 121°C)

1/2°

0.015

55D

Low

Excellent

Tan

Bronze –
Rigid, porous oil-impregnated
metal insert exclusively for low
speed (max 250 RPM)
applications requiring high
torque capabilities. Not affected
by extreme temperatures,
water, oil, or dirt.

-40°F to 450°F
(-40°C to 232°C)

1/2°

0.01

None

Excellent

Bronze

Note: Cushions are held in place radially by a steel collar.

Please Note: CAD Files are located in the digital catalog.

For additional documentation (in PDF form), please download the Jaw Coupling catalog (pdf) or contact Lovejoy customer service.

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