Jaw Coupling – Elastomer Damping Type Coupling
The Jaw Coupling is our most widely used general purpose coupling, featuring a two metal hubs + curved jaw polyurethane elastomer structure. This series is designed for complete assembly interchangeability with equivalent products from brands such as KTR, Lovejoy, and NBK. The elastomer provides excellent vibration damping and shock absorption, effectively protecting the ball screw and motor bearings. Suitable for general automation equipment, packaging machinery, and applications with vibration and shock loads.
Key Features
- Assembly Replacement – Direct replacement of existing same-type assemblies in customer equipment; custom bore machining available per customer drawings
- Elastomer Damping – Curved jaw polyurethane elastomer effectively absorbs vibration and shock, protecting the drive system
- Zero Backlash Option – Available in zero-backlash (preloaded) version to meet servo positioning requirements
- Electrical Insulation – Elastomer naturally provides electrical insulation, preventing galvanic corrosion between motor shaft and screw shaft
- Maintenance-Free – No lubrication required; maintenance-free for long-term operation
- Replaceable Elastomer – Elastomer is a wear part and can be replaced separately without discarding the entire coupling
Full Specifications
© RFU Motion. Specifications subject to change without notice.
For the latest specs, please contact us.
Custom Manufacturing Available
Standard ball screws and linear guides don't always fit your design. Here's what RFU MOTION can customize based on your drawings:
- Shaft end machining — machined precisely to your drawing
- Screw length — cut to your exact requirement
- Preload — light, medium, heavy, or custom value
- Nut type — standard flange, special shape, or non-standard mounting interface
- Rail length — continuous cutting with end finishing (chamfer or grinding)
- Mounting holes — special thread sizes, hole spacing, or countersunk dimensions
Send us your drawing or specs — we'll deliver exactly what you need.
📦 MOQ: 1 piece / 1 set
⏱️ Lead time: Standard custom 5-7 days | Complex custom 7-15 days | Wire cutting +2 days
Request Custom Quote →