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Home / Bearings & Bushings / SF-1 Oil-Free Copper Bushing | Composite Self-Lubricating Oil-Impregnated Bearing | Wear-Resistant Sleeve | 90mm Inner Diameter

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material Composition PTFE + Bronze + Steel Backing
Inner Diameter (ID) 90 mm
Outer Diameter (OD) 95 mm
Length 50 mm
Dynamic Load Capacity 140 N/mm²
Static Load Capacity 250 N/mm²
Max Sliding Speed 2.5 m/s
Operating Temperature -40°C to +110°C
Friction Coefficient 0.03 - 0.20
Industry Standard ISO 3547 Compliant

5 reviews

A

Anonymous

Apr 21, 2026

Rating: 5/5

Quiet operation

Replaced an old metal bushing with this composite one. The noise reduction in the machinery is noticeable.

A

Anonymous

Apr 12, 2026

Rating: 5/5

Reliable bulk purchase

Ordered multiple units for our production line. Consistency across all units was impressive. Will order again.

A

Anonymous

Mar 31, 2026

Rating: 5/5

Perfect for hydraulic repair

Used this to rebuild a hydraulic cylinder on my excavator. Fit was precise and it slides smoothly without additional grease.

A

Anonymous

Feb 01, 2026

Rating: 4/5

Good quality, tight fit

The bearing quality is excellent. Had to do a slight ream to get it onto the shaft, but once installed it works great.

A

Anonymous

Jan 28, 2026

Rating: 4/5

Solid value

Does exactly what it says. Packaging was a bit minimal but the product itself is wear-resistant and durable.

5 FAQ

Q: What is the lead time for bulk orders?

A: Orders over 50 units typically ship within 3-5 business days from our warehouse.

Q: Can this be used outdoors in rain?

A: Yes, the bronze and steel backing offer good corrosion resistance for outdoor use.

Q: Is the 90mm ID exact or nominal?

A: It is nominal. Please refer to the ISO 3547 standard tolerance chart for specific measurements.

Q: What is the shaft tolerance recommendation?

A: We recommend a shaft tolerance of f7 or g6 for optimal performance.

Q: Does this require regular lubrication?

A: No, the SF-1 material is self-lubricating due to the PTFE layer.

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