Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material Composition	CuSn8ZnPb Bronze with Graphite Plugs
Inner Diameter Options	50mm, 55mm
Outer Diameter Options	20mm, 30mm, 40mm, 50mm, 60mm
Lubrication Type	Self-Lubricating (Solid Graphite)
Hardness	90-120 HB
Max Static Load	250 N/mm²
Max Dynamic Load	140 N/mm²
Operating Temperature	-40°C to +250°C
Max Sliding Speed	0.5 m/s
Surface Finish	Precision Machined

5 reviews

Anonymous

Apr 16, 2026

Rating: 4/5

Good quality, slight delay in shipping

The bearings themselves are excellent quality and match the specifications provided. Shipping took a bit longer than expected, but the product performance makes up for it.

Anonymous

Apr 13, 2026

Rating: 5/5

No grease required

Bought these for a high-temperature environment where standard grease would fail. They operate smoothly without any additional lubrication. Very satisfied with the durability.

Anonymous

Mar 25, 2026

Rating: 5/5

Perfect for hydraulic press maintenance

These bronze bearings fit perfectly into our hydraulic press cylinders. The self-lubricating graphite plugs save us a lot of maintenance time. Highly recommended for heavy-duty applications.

Anonymous

Mar 16, 2026

Rating: 4/5

Precise dimensions

Measured the inner and outer diameters with calipers and they are within tolerance. Installation was straightforward. Would buy again for future projects.

Anonymous

Mar 03, 2026

Rating: 5/5

Robust construction

Solid bronze construction feels very robust. We use them in agricultural machinery where dust and debris are common. They handle the harsh conditions well.

5 FAQ

Q: Can these be used in wet environments?

A: Yes, the bronze material offers good corrosion resistance, making them suitable for environments with occasional water exposure.

Q: Do these bearings require regular greasing?

A: No, these bearings feature embedded graphite plugs that provide self-lubrication during operation, eliminating the need for regular greasing.

Q: Are custom lengths available for this model?

A: Yes, we offer custom cutting services for length. Please contact our sales team with your specific requirements for a quote.

Q: What is the shaft tolerance compatibility?

A: These bearings are designed to work with standard H7/f7 shaft tolerances. Please consult the technical datasheet for specific fitment details.

Q: What is the maximum RPM for the 50mm inner diameter version?

A: The maximum RPM depends on the load and temperature. For a 50mm ID, we recommend staying under 600 RPM for optimal longevity under standard load.

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