Spring-loaded tandem roller set with polished brass wheels spinning inside a galvanized steel channel and black plastic end caps. The internal spring pushes the wheel carriage downward, maintaining track contact even on slightly warped rails. Brass wheels offer high load capacity with a low-friction surface that glides smoothly on aluminium tracks. End caps shield the mechanism from dust and simplify insertion into the sash cavity; available in various sizes.
Key Features
- Brass wheels carry high loads with low friction
- Internal spring keeps wheels pressed to warped rails
- Black end caps shield the spring mechanism
Material: Brass + Galvanized Steel · Finish: Gold brass wheels, silver housing, black caps
OEM & ODM orders are welcome. As a factory-direct supplier of door and window hardware, we support mixed batches and fast delivery. Contact us for samples and bulk pricing.









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