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Home / Bearings & Bushings / SF-2 45*50*32 Oil-Impregnated Bearing, Wear-Resistant Sleeve, Composite Sleeve, Bronze Bushing, Composite Liner, Shaft Sleeve

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Inner Diameter 45 mm
Outer Diameter 50 mm
Length 32 mm
Material Composition SF-2 Composite Bronze
Dynamic Load Rating 14,500 N
Static Load Rating 22,000 N
Max Sliding Speed 2.0 m/s
Operating Temperature -40°C to +110°C
Lubrication Type Self-Lubricating (Oil-Impregnated)
Manufacturing Standard ISO 3547 Compliant

5 reviews

A

Anonymous

Apr 15, 2026

Rating: 5/5

Exact Specifications

Measured them upon arrival. The 45x50x32 mm specs are accurate. Great for precision machinery.

A

Anonymous

Apr 04, 2026

Rating: 5/5

Perfect Fit for Industrial Pump

Installed these on a hydraulic pump shaft. Dimensions were spot on and the self-lubricating feature saves maintenance time.

A

Anonymous

Mar 29, 2026

Rating: 4/5

Good Quality, Slow Shipping

The bearing itself is robust and well-made. Took a bit longer to arrive than expected but worth the wait.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Excellent Wear Resistance

Using these in high-friction applications. No signs of wear after three months of continuous operation.

A

Anonymous

Jan 30, 2026

Rating: 4/5

Solid Value for Bulk

Bought ten units for our workshop. Consistent quality across all pieces. One had minor surface marks but functional.

5 FAQ

Q: Does this bearing require additional grease during installation?

A: No, this SF-2 bearing is oil-impregnated and self-lubricating. Additional grease is not required.

Q: Is this suitable for high RPM motor applications?

A: This bearing is best suited for low to moderate sliding speeds. For high RPM, please consult our high-speed series.

Q: Can this be used in outdoor equipment exposed to rain?

A: It can handle moderate exposure, but we recommend avoiding full submersion in water for extended periods.

Q: Is the inner surface smooth enough for a polished shaft?

A: Yes, the inner surface is honed to provide a smooth finish suitable for polished shafts.

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

A: The hardness is approximately 200 HB, providing a balance between durability and conformability.

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