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Home / Bearings & Bushings / Oil-Free Bushing ID 70mm OD 75mm, SF1 Composite Bearing, Self-Lubricating Oil-Impregnated Sleeve, Wear-Resistant Copper/Iron Bushing

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material Composition Steel Back, Bronze Layer, PTFE Overlay
Inner Diameter (ID) 70 mm
Outer Diameter (OD) 75 mm
Length 50 mm
Dynamic Load Capacity 140 N/mm²
Static Load Capacity 250 N/mm²
Operating Temperature -40°C to +110°C
Friction Coefficient 0.03 - 0.20
Surface Finish Machined
Compliance Standard ISO 3547

5 reviews

A

Anonymous

Apr 11, 2026

Rating: 4/5

Good quality bronze

Solid build, shipping took a bit long but product is great. Measurements were accurate.

A

Anonymous

Apr 10, 2026

Rating: 5/5

Perfect Replacement

Fit exactly as described. No lubrication needed yet. Saved me a lot of time on the repair.

A

Anonymous

Apr 06, 2026

Rating: 4/5

Meets specs

Measurements matched the 70mm ID perfectly. Good value for the price point.

A

Anonymous

Mar 29, 2026

Rating: 5/5

Bulk order satisfied

Ordered 50 units for production line. All within tolerance and performing well under load.

A

Anonymous

Feb 05, 2026

Rating: 5/5

Smooth operation

Reduced noise in my hydraulic press significantly. Very happy with the self-lubricating feature.

5 FAQ

Q: Does this require additional grease during installation?

A: No, it is self-lubricating due to the PTFE layer, but a thin film of oil can help during initial press fit.

Q: What is the shaft tolerance recommendation for 70mm ID?

A: h9 tolerance is recommended for best fit and performance.

Q: Can this be used in submerged underwater applications?

A: Not recommended for continuous submerged use as it may affect the self-lubricating properties over time.

Q: Do you offer bulk discounts for orders over 100 units?

A: Yes, please contact our sales department directly for volume pricing tiers.

Q: What is the hardness rating of the bronze layer?

A: Typically 150-220 HB depending on the specific batch testing.

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