Heavy Duty Clamp Bushings
Insert Bushings for FLEXAquick® Heavy Duty Conduit Clamps
The RQMR series clamp bushings are designed for use with the FLEXAquick® RQM heavy-duty conduit clamp system. These insert bushings allow clamps to accommodate smaller conduit diameters, support cable-only installations, or provide controlled conduit movement to reduce mechanical stress at the clamping point.
RQMR insert bushings are designed for the FLEXAquick® RQM heavy-duty conduit clamp system and fit between the clamp body and the conduit or cable to adapt size, cushion the clamping point, or allow controlled movement depending on the insert type.
For installations requiring rigid structural mounting of conduits, see our Heavy Duty Conduit Clamps. For lighter conduit routing where easy conduit access and clean machine design are important, see our Light & Medium Duty Conduit Clips and Caps.
FLEXAquick® quick-connect fittings and ROHRflex® flexible corrugated conduits are flagship product lines from IBIS Electro-Products Corp., supporting high-performance electrical conduit systems for machinery, robotics, rail vehicles, and demanding industrial installations.
FLEXAquick® RQMR-Move
Flexible TPE insert bushing allowing controlled conduit movement to reduce conduit wall stress at the clamp point
View ProductsHow Clamp Insert Bushings Work
Clamp bushings are installed between the conduit and the clamp body to improve conduit retention and reduce mechanical stress at the clamping point.
When the two halves of a heavy-duty clamp are tightened, the insert bushing cushions the conduit surface and distributes clamping pressure more evenly. This helps protect conduit walls while maintaining secure conduit fixation.
Specialized insert options allow the RQM clamp system to accommodate smaller conduit diameters, secure jacketed cable directly, or permit controlled conduit movement where vibration, flexing, or strain accommodation is required.
Choosing the Right Clamp Insert Bushing
| Product | Function | Typical Use |
|---|---|---|
| RQMR | Reducer bushing | Smaller-diameter conduit in a larger RQM clamp |
| RQMR-Cable | Cable insert | Direct clamping of jacketed cable without conduit |
| RQMR-Move | Flexible movement insert | Controlled conduit movement and reduced stress at the clamp point |
Typical Applications
Clamp bushings are commonly used in installations requiring conduit size adaptation, cable clamping, or mechanical stress reduction, including:
Passenger rail vehicle wiring systems
Wind turbine nacelle wiring
Industrial automation equipment
Robot and cobot wiring installations
Infrastructure conduit routing
Multi-conduit trunking systems
Frequently Asked Questions About Clamp Bushings
When should reducer bushings be used with heavy-duty clamps?
Reducer bushings are used when a smaller-diameter conduit needs to be secured within a larger RQM clamp size.
What is the purpose of the RQMR-Move insert?
The RQMR-Move insert is a flexible TPE bushing designed to reduce conduit wall stress at the clamping point. It allows controlled conduit movement while maintaining secure retention.
Can heavy-duty clamps be used without insert bushings?
Yes. Insert bushings are optional accessories used when conduit size reduction, cable-only clamping, or controlled conduit movement is required.
Can RQMR reducer bushings be used to fit smaller conduit into a larger RQM clamp?
Yes. RQMR reducer bushings are specifically intended to reduce the effective opening of a larger RQM clamp so it can securely hold a smaller-diameter conduit. The bushing must be matched to both the clamp body and the conduit size.
What is the difference between RQMR and RQMR-Cable inserts?
RQMR reducer bushings are used with corrugated conduit to adapt a larger clamp body to a smaller conduit diameter. RQMR-Cable inserts are designed for securing jacketed cable directly when no corrugated conduit is used.
Need Help Selecting the Right Clamp Insert?
Our technical team can help you configure the correct clamp and insert combination for your conduit installation.