Oil-Free Bushings
Oil-free bushings run without lubrication lines — solid lubricant embedded in the bearing wall feeds the sliding surface continuously.
What are oil-free bushings?
An oil-free (self-lubricating) bushing is a bronze or steel-backed bearing with graphite or other solid-lubricant plugs embedded in its running surface. As the shaft moves, a transfer film forms, so the bearing operates maintenance-free at high load and low-to-moderate speed — ideal inside moulds, fixtures and machines where re-oiling is impractical.
Typical materials
High-strength bronze (often with embedded graphite), steel-backed variants, and polymer-lined types for lighter duties.
Types of oil-free bushings
Cylindrical oil-free bushings
Plain bushes for shafts and guide pillars.
Flanged types
Flange takes axial thrust and simplifies location.
Oil-free slide plates
Flat self-lubricating wear plates for slides, cams and wear surfaces.
Guide-pillar bushes
Matched to mould and die guide pins for oil-free alignment.
How to select oil-free bushings
- Shaft diameter, housing bore and length (or plate size).
- Load and sliding speed — oil-free bearings favour high load / lower speed.
- Temperature and environment.
- Flanged or plain, bush or plate format.
Not sure? Send what you have — a part number, drawing or photo — and our engineering team will confirm the selection.
Frequently asked questions
- How do oil-free bushings work without lubrication?
- Solid lubricant (typically graphite) embedded in the bearing surface transfers to the shaft as it moves, forming a self-renewing lubricating film — no oil lines or greasing schedule required.
- Where are oil-free slide plates used?
- As flat wear surfaces under slides, cams and pressure pads in moulds, dies and machines — anywhere a flat sliding interface must run dry.
Related components
Guide Pins & Guide Bushes
Guide pins and bushes align mould halves at every close. They are the first components to feel misalignment — and the cheapest place to fix it.
Linear Shafts
The shaft is half of every linear bushing system — its hardness, roundness and surface finish set the accuracy and life of the motion.
Linear Bearings
Linear bearings put recirculating balls between shaft and carriage, turning sliding friction into smooth rolling motion.
Need oil-free bushings?
Tell us the specification, quantity and application — or just send the drawing.