Attributes

Brand	-
Category	Machinery & Equipment / Garment Processing Equipment
Origin	-
Model Number	SF1-8040/8050/8060
Material Composition	Bronze Base with PTFE Composite Layer
Lubrication Type	Self-Lubricating (Oil-Impregnated)
Operating Temperature	-40°C to +110°C
Max Load Capacity	25 N/mm² (Static)
Sliding Speed	Up to 2.5 m/s
Friction Coefficient	0.03 - 0.20 (Dynamic)
Application Industry	Garment Processing & Textile Machinery
Surface Finish	Precision Machined Bronze Sleeve
Maintenance Requirement	Maintenance-Free Operation

6 reviews

Anonymous

Mar 30, 2026

Rating: 5/5

Perfect for high-speed sewing machines

We replaced the standard bushings in our industrial embroidery line with these SF1 series bearings. The reduction in noise is immediate, and the self-lubricating feature means we don't have to stop production for oiling every shift.

Anonymous

Mar 28, 2026

Rating: 5/5

No more oil stains on fabric

The biggest issue with traditional bearings in garment processing is oil leakage ruining expensive textiles. These oil-free bushings solved that problem completely. Our defect rate due to staining has dropped to zero.

Anonymous

Mar 26, 2026

Rating: 4/5

Smooth operation under load

Using these on the main drive shafts of our pressing machines. They handle the thermal expansion well and maintain low friction even when the machine gets hot. Very satisfied with the performance.

Anonymous

Mar 22, 2026

Rating: 5/5

Great value for industrial use

Ordered a bulk set for our factory overhaul. The bronze sleeve construction feels robust, and the fit is precise. Installation was straightforward, and they have been running without issues for three months now.

Anonymous

Mar 22, 2026

Rating: 4/5

Durable and reliable

These composite bearings hold up well under the continuous friction of fabric cutting tables. They run smooth and cool. I took off one star only because the lead time was slightly longer than expected, but the quality makes up for it.

Anonymous

Mar 11, 2026

Rating: 5/5

Essential upgrade for textile machinery

If you are maintaining older garment equipment, these are a must-have upgrade. They extend the life of the shafts and reduce vibration significantly. Highly recommend for any workshop manager.

5 FAQ

Q: Do I need to apply any grease before installation?

A: No, additional lubrication is not required before installation. The bearing contains solid lubricants (PTFE and lead-free additives) impregnated within the material structure, providing immediate low-friction performance upon startup.

Q: Are these bearings suitable for wet environments in dyeing processes?

A: While the SF1 series is self-lubricating and resistant to mild moisture, it is primarily designed for dry or semi-dry sliding applications. For constant submersion or highly corrosive chemical environments, we recommend consulting our engineering team for a specialized coating.

Q: What is the expected lifespan under 24/7 operation?

A: Under normal operating conditions within the specified load and speed limits, these bearings typically last between 15,000 to 20,000 hours. Actual lifespan may vary based on specific load cycles and environmental factors in your facility.

Q: What is the tolerance range for the inner diameter?

A: The standard tolerance for the inner diameter of the SF1-8040/8050/8060 series is typically H7/H8 depending on the specific dimension selected. Please refer to the detailed technical datasheet included with your shipment for exact metrics per size.

Q: Can these be press-fitted directly into steel housings?

A: Yes, these composite bearings are designed to be press-fitted into standard steel housings. We recommend a slight interference fit to ensure proper heat transfer and stability during high-speed operation.

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