Navigation Menu New

Access My Account, Order History, Lists and more here.

Cart
All Products
Bulk Order
Cart

Jaw Couplings

Available639 products
Jaw couplings connect the shaft of a motor, or moveable machine to the shaft on a stationary machine. Two jaws interlock around a jaw-coupling spider to create a complete coupling. Straight jaw couplings are suitable for most industrial applications, while curved jaw couplings are suitable where zero backlash is required, such as stepper or servo motor applications where precise motion control is needed.

General Purpose Straight Jaw Spiders

General Purpose Straight Jaw Spiders
General purpose straight jaw spiders isolate and interlock the jaws between two coupling hubs using consumable economical materials which absorb shock and vibration. These spiders are interchangeable with other brands according to the coupling size identifier.

Buna-N

Buna-N is soft and very flexible, with good resistance to oil, vibration, and temperature.

Brand
Loading...

Polyurethane

Polyurethane is moderately firm and maintains performance under shock loads.

Brand
Loading...

Hytrel

Hytrel is very firm, with excellent resistance to oil, chemicals, and temperature.

Brand
Loading...

General Purpose Straight Jaw Coupling Hubs

General Purpose Straight Jaw Coupling Hubs
General purpose straight jaw coupling hubs attach to motor and equipment shafts using a set screw or keyway. Two couplings of the same size are locked together with a compatible straight jaw spider. These hubs are interchangeable with other brands according to the coupling size identifier.

Inch – For Keyed Shafts

Carbon Steel

Brand
Loading...

Stainless Steel

Brand
Loading...

Aluminum

Brand
Loading...

Cast Iron

Brand
Loading...

Inch – For Round Shafts

Carbon Steel

Brand
Loading...

Stainless Steel

Brand
Loading...

Aluminum

Brand
Loading...

Metric – For Keyed Shafts

Carbon Steel

Brand
Loading...
Loading...

Cast Iron

Brand
Loading...

High-Torque Straight Jaw Spiders

High-Torque Straight Jaw Spiders
High-torque straight jaw spiders isolate and interlock the jaws on two coupling hubs made of consumable materials, maintaining a rigid connection in high torque applications.

Rubber

Rubber is soft and promotes quiet operation with good resistance to oil.

Loading...

Polyurethane

Polyurethane is moderately firm and maintains performance under shock loads.

Loading...

Bost-Bronz

Bost-Bronz is very hard and is self-lubricating to withstand high torque applications.

Loading...

High-Torque Straight Jaw Coupling Hubs

High-Torque Straight Jaw Coupling Hubs
High-torque straight jaw coupling hubs are machined to tight tolerances to cope with high torque loads. They attach to motor and equipment shafts using a set screw or keyway. Two couplings of the same size lock together with a compatible high torque straight jaw spider.

Inch – For Keyed Shafts

Carbon Steel

Loading...

Stainless Steel

Loading...

High-Torque Straight Jaw Coupling Hubs for Machining

High-Torque Straight Jaw Coupling Hubs for Machining
High-torque straight jaw coupling hubs for machining are manufactured to tight tolerances to cope with high torque loads and allow end users to machine the required bore, keyway, and shaft lock passages for precise fitment. Two couplings of the same size lock together with a compatible high torque straight jaw spider.

Inch

Stainless Steel

Loading...

Zero-Backlash Curved Jaw Spiders

Zero-Backlash Curved Jaw Spiders
Zero-backlash curved jaw spiders isolate and interlock the jaws on two coupling hubs, featuring a press-fit curved design. They are made of consumable materials, which maintain a rigid connection.

Polyurethane – 85A Hardness

Polyurethane is moderately firm and maintains performance under shock loads.

Loading...

Polyurethane – 92A Hardness

Polyurethane is moderately firm and maintains performance under shock loads.

Loading...

Polyurethane – 98A Hardness

Polyurethane is moderately firm and maintains performance under shock loads.

Loading...

Zero-Backlash Curved Jaw Coupling Hubs

Zero-Backlash Curved Jaw Coupling Hubs
Zero-backlash curved jaw spiders feature a balanced aluminum construction for high RPM applications. They attach to motor and equipment shafts using a set screw or keyway and the curved jaws are bushed by a press-fit compatible zero-backlash jaw spider.

Inch – For Keyed Shafts

Clamp On

Loading...

Set Screw

Loading...

Inch – For Round Shafts

Clamp On

Loading...

Set Screw

Loading...

Metric – For Keyed Shafts

Clamp On

Loading...

Set Screw

Loading...

Metric – For Round Shafts

Clamp On

Loading...

Set Screw

Loading...
Note: Product availability is real-time basis and adjusted continuously. The product will be reserved for you when you complete your order.