Attributes

Brand	-
Category	Rubber & Plastic Materials and Products / Plastic Buckets, Bottles & Jars
Origin	-
Material	Steel Back with PTFM/Fiber Composite Liner
Inner Diameter Options	24mm, 25mm, 28mm, 30mm
Lubrication Type	Self-Lubricating (Oil-Free)
Operating Temperature	-40°C to +110°C
Max Load Capacity	140 N/mm² (Static)
Sliding Speed	Up to 2.5 m/s
Friction Coefficient	0.03 - 0.15 (Dynamic)
Application Type	Rotary and Oscillating Movements
Corrosion Resistance	High (Suitable for humid environments)
Package Contents	1 x SF1 Composite Bearing Sleeve

6 reviews

Anonymous

Mar 24, 2026

Rating: 5/5

Excellent for high-load applications

Using these in a custom-built robotic arm joint. The load capacity is impressive for such a thin-walled sleeve. The oil-free design keeps our workspace clean, which was a primary requirement for this project.

Anonymous

Mar 24, 2026

Rating: 5/5

Perfect fit for my machinery repair

Ordered the 25mm size to replace a worn-out bushing in an agricultural pivot point. The installation was straightforward, and the self-lubricating feature works exactly as described. No more squeaking after weeks of heavy use.

Anonymous

Mar 21, 2026

Rating: 5/5

Solved my friction issues

These bearings have significantly reduced friction in my oscillating mechanism. The 24mm size was precise, and the performance in varying temperatures has been stable. Will definitely purchase again for future projects.

Anonymous

Mar 07, 2026

Rating: 4/5

Solid product for the price

Bought the 30mm variant for a suspension linkage restoration. The material seems robust, and the steel backing provides good structural integrity. Delivery was fast, and the item arrived well-packaged.

Anonymous

Mar 05, 2026

Rating: 5/5

Reliable and long-lasting

Replaced standard bronze bushings with these SF1 composites on a conveyor system. It has been running for three months without any maintenance or additional greasing. Highly recommend for industrial settings.

Anonymous

Mar 02, 2026

Rating: 4/5

Good quality, slightly tight tolerance

The build quality is excellent, and the composite liner feels durable. I had to press the 28mm bearing in with a bit more force than expected, but once seated, it operates smoothly. Great value for the price.

5 FAQ

Q: Can this bearing be used in underwater applications?

A: While the material is corrosion-resistant, the SF1 composite is designed for general industrial use. For continuous submersion, we recommend checking specific chemical compatibility charts or contacting support for marine-grade alternatives.

Q: What is the recommended shaft tolerance for the 25mm size?

A: For optimal performance with the 25mm inner diameter, we recommend a shaft tolerance of f7 or g6 to ensure proper clearance and smooth rotation without excessive play.

Q: Do I need to apply grease during installation?

A: No, the SF1 bearing features a self-lubricating PTFM composite liner. Applying external grease is not necessary and may attract dust in certain environments, though a light film can be used if desired for initial break-in.

Q: Is the copper sleeve visible on the outside?

A: The exterior is typically a steel back with a thin copper anti-corrosion layer that may appear bronze-colored. The interior sliding surface is the dark composite liner.

Q: Can this handle misalignment issues?

A: The SF1 sleeve is rigid and best suited for aligned shafts. For applications with significant misalignment, a spherical plain bearing would be a more appropriate choice to prevent edge loading.

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