C Type – Higher Torque Jaw Coupling

  • Greater torque and bore capacity (compared to L type)
  • Elastomeric cushions are radially removable
  • Accommodates for angular and parallel shaft misalignment
  • Fail-safe (will still perform if elastomeric cushions fail)
  • No metal to metal contact
  • Resistant to oil, dirt, sand, moisture, and grease
  • Industry’s largest available selection from stock
C Type – Higher Torque Jaw Coupling

Resources

Jaw Type Couplings Digital Catalog & 3D CAD

Jaw Type Couplings Catalog (pdf)

Stainless Steel Jaw Sell Sheet (pdf)

L-LOC Clamp Feature Sheet (pdf)

Jaw Coupling Selection Worksheet (pdf)

Installation Instructions & Videos

C Type – Higher Torque Jaw Coupling Additional Resources

 

Click here to access Lovejoy’s Dimensional Data for C Type components.

A full C Type coupling is comprised of 4 parts:

  • 2 cast iron hubs
  • 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

C226

2.5

64

2,988

338

—

—

5,940

671

5,940

671

C276

2.875

73

4,716

533

—

—

9,432

1066

—

—

C280

3

76

7,560

854

—

—

13,866

1567

—

—

C285

4

102

9,182

1038

—

—

16,680

1882

—

—

C2955

3.5

89

11,340

1281

—

—

22,680

2563

22,680

2563

C2955

4

102

18,900

2136

—

—

37,800

4271

37,800

4271

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)

1°

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.