Description
Reviews
| Brand | - |
| Category | Women's Shoes / Other Shoe Accessories |
| Origin | - |
| Material | Bronze with PTFE Composite Layer |
| Type | Oil-Free Self-Lubricating Bushing |
| Model Series | SF1-5020/5030/5040/5050 |
| Inner Diameter Range | 5mm to 50mm |
| Operating Temperature | -40°C to +110°C |
| Max Load Capacity | 140 N/mm² (Static) |
| Friction Coefficient | 0.03 - 0.20 (Dynamic) |
| Application | Shoe Machinery & Industrial Equipment |
| Lubrication | Maintenance-Free (Solid Lubricant) |
| Finish | Precision Machined Bronze Surface |
Anonymous
Mar 30, 2026
Rating: 5/5
Reliable for high-cycle use
We use these in a high-frequency cutting machine. After three months of continuous operation, there is no sign of wear or binding. The SF1 series really lives up to its reputation for durability.
Anonymous
Mar 26, 2026
Rating: 5/5
Perfect fit for our repair shop
Ordered the SF1-5030 series for some vintage shoe stitching machines. The dimensions were exact, and the self-lubricating feature saves us a lot of maintenance time. Highly recommended for industrial sewing applications.
Anonymous
Mar 19, 2026
Rating: 5/5
Solved our lubrication issues
Working in a clean environment where oil drips are not allowed was a challenge until we found these. They run completely dry and perform exceptionally well under load.
Anonymous
Mar 18, 2026
Rating: 5/5
Excellent noise reduction
Replaced old metal sleeves with these oil-free bushings in our conveyor system. The noise level dropped significantly, and the movement is much smoother. Great value for the price.
Anonymous
Mar 14, 2026
Rating: 4/5
Standard industrial grade
Does exactly what it says. No frills, just a reliable bearing sleeve. The tolerance is tight which is good for precision work. Would buy again for future projects.
Anonymous
Mar 13, 2026
Rating: 4/5
Good quality, fast shipping
The bronze bushings arrived well-packaged. They seem very durable and the composite layer looks uniform. Took off one star because the packaging didn't include specific installation torque specs, but overall a solid product.
Q: Do you provide technical drawings for custom sizes?
A: Yes, we offer custom machining services. Please contact our sales team with your specific dimensions and load requirements, and we will provide a quote and technical drawing within 24 hours.
Q: Are these bearings suitable for wet environments?
A: While the SF1 series is self-lubricating, it is primarily designed for dry or slightly humid conditions. For constant submersion or highly corrosive wet environments, we recommend checking our stainless steel specific variants.
Q: What is the lead time for bulk orders of the SF1-5050 model?
A: For bulk orders exceeding 500 units of the SF1-5050 model, the standard lead time is 7-10 business days. Expedited shipping options are available at checkout.
Q: Can I press-fit these into an aluminum housing?
A: Yes, these bushings are designed to be press-fitted. However, please ensure the housing tolerance follows ISO H7 standards to prevent deformation of the bronze layer during installation.
Q: Is there a minimum order quantity?
A: There is no minimum order quantity for standard sizes. You can purchase single units for prototyping or large batches for production runs.
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