Attributes

Brand	-
Category	Industrial Small Parts / Bearings & Bushings
Origin	-
Material Composition	Steel Backed + Bronze Sinter + PTFE
Inner Diameter Options	26mm / 28mm / 30mm / 32mm
Outer Diameter Tolerance	H7 Standard Fit
Available Lengths	20mm to 100mm (Standard)
Lubrication Type	Self-Lubricating (Oil-Impregnated)
Static Load Capacity	140 N/mm²
Dynamic Load Capacity	60 N/mm²
Operating Temperature	-40°C to +110°C
Friction Coefficient	0.03 - 0.10
Industry Compliance	ISO 3547 / DIN 1494

5 reviews

Anonymous

Apr 17, 2026

Rating: 4/5

Good quality but tight fit

The material quality is excellent. However, the 30mm ID was slightly tight and needed a bit of reaming. Otherwise works as expected.

Anonymous

Mar 25, 2026

Rating: 5/5

No grease needed

Installed these in a conveyor system. Running smooth without additional grease. Very satisfied with the durability so far.

Anonymous

Mar 01, 2026

Rating: 5/5

Bulk order quality

Ordered 50 units for our assembly line. Dimensions were consistent across all pieces. Great vendor for bulk mechanical parts.

Anonymous

Feb 15, 2026

Rating: 5/5

Great for machinery repair

Fits perfectly on my hydraulic press shaft. The self-lubricating feature saves me time on maintenance. Highly recommend for industrial use.

Anonymous

Feb 07, 2026

Rating: 3/5

Packaging could be better

The bearing itself is fine and meets specs, but the box arrived crushed. Luckily the product wasn't damaged. Please improve shipping protection.

5 FAQ

Q: Does this bearing require additional grease during installation?

A: No, the SF-1 composite is self-lubricating. However, a light coat of oil during initial installation can help prevent dry start-up.

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

A: The bronze sintered layer typically measures between 200-250 HB depending on the specific batch and heat treatment.

Q: What is the maximum temperature this sleeve can withstand?

A: The continuous operating temperature range is -40°C to +110°C. Short-term peaks up to 160°C are possible but may reduce lifespan.

Q: Is this suitable for underwater applications?

A: While the bronze composite resists corrosion, continuous submersion is not recommended as it may wash out the impregnated lubricant over time.

Q: Can I order custom lengths outside the standard range?

A: Yes, we offer custom machining. Please contact our sales team with your specific dimensions for a quote.

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