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Home / Bearings & Bushings / Engineering Plastic Self-Lubricating Linear Bearing Sleeve Sliding Film JUM-01-20 High-Speed Wear-Resistant Bushing

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material Type Engineering Plastic (POM Blend)
Inner Diameter 20 mm
Outer Diameter 28 mm
Overall Length 30 mm
Dynamic Load Capacity 1500 N
Max Linear Speed 2.5 m/s
Operating Temperature -40°C to +120°C
Friction Coefficient 0.15 (Dry)
Surface Finish Smooth Machined
Package Count 5 Pieces

5 reviews

A

Anonymous

Apr 17, 2026

Rating: 5/5

Silent operation

I replaced metal bushings with these and the noise reduction is significant. Great for home automation setups where noise matters.

A

Anonymous

Mar 26, 2026

Rating: 4/5

Good quality, tight fit

The build quality is excellent. It was a bit tight on the shaft initially but loosened up after a few cycles. Works as expected.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Durable and reliable

Been using these for 3 months in a high-cycle application. No signs of wear yet. Highly recommend for plastic bearing needs.

A

Anonymous

Feb 20, 2026

Rating: 5/5

Perfect for my CNC project

These bearings fit perfectly on the 20mm shaft. The motion is incredibly smooth without any additional lubrication. Very happy with the purchase.

A

Anonymous

Feb 07, 2026

Rating: 3/5

Arrived with minor scuff

The bearing works fine mechanically, but one unit had a small scuff on the outer diameter. Doesn't affect performance but worth noting.

5 FAQ

Q: Do these bearings require oil or grease lubrication?

A: No, these are self-lubricating engineering plastic bearings designed for dry operation. Adding oil may attract dust.

Q: Are these resistant to water exposure?

A: Yes, the material is resistant to water and moisture, making them suitable for damp environments.

Q: Can I press these into an aluminum housing?

A: Yes, they can be pressed into aluminum housings. Please ensure the housing tolerance is H7 to avoid deformation.

Q: What shaft tolerance is recommended for installation?

A: We recommend a shaft tolerance of h9 for optimal fit and performance with this inner diameter.

Q: What is the warranty period for this item?

A: This product comes with a 1-year manufacturer warranty against defects in material and workmanship.

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