Description
Reviews
| Brand | - |
| Category | Hardware & Tools / Sewing Machine Parts |
| Origin | - |
| Material | SF1 Composite (PTFE + Bronze) |
| Inner Bore Sizes | 3mm, 4mm, 5mm |
| Lubrication Type | Self-Lubricating (Oil-Impregnated) |
| Application | Sewing Machine Sliding Bearings |
| Feature | Wear-Resistant and Oil-Free |
| Operating Temperature | -40°C to +110°C |
| Load Capacity | High Dynamic Load Rating |
| Friction Coefficient | Low (0.05 - 0.15) |
| Package Content | Assorted Copper Sleeve Bushings |
| Compatibility | Universal for Most Home Sewing Machines |
Anonymous
Mar 30, 2026
Rating: 4/5
Great value assortment
Getting the 3, 4, and 5mm sizes in one pack is convenient for a repair shop. The tolerances are tight, which is essential for sewing machine mechanics. One star off because shipping took a while.
Anonymous
Mar 25, 2026
Rating: 5/5
Perfect fit for my vintage machine
I needed a 4mm bushing for an old Singer model, and this SF1 sleeve fit perfectly. The self-lubricating feature means I don't have to oil it constantly. Very smooth operation now.
Anonymous
Mar 20, 2026
Rating: 5/5
Excellent wear resistance
I use my machine for heavy denim projects. These bushings handle the vibration and friction much better than the original parts. No signs of wear after three months of heavy use.
Anonymous
Mar 20, 2026
Rating: 5/5
Solved my squeaky arm issue
My sewing machine arm was making a terrible noise. Replaced the worn-out plastic bushing with this copper sleeve. Silent operation restored immediately. Highly recommend for repairs.
Anonymous
Mar 13, 2026
Rating: 4/5
Good quality, small sizes
The material feels durable and the bronze composite is high quality. Just make sure you measure your bore exactly as these are precision parts. Works great for light-duty sewing tasks.
Anonymous
Mar 03, 2026
Rating: 5/5
Smooth sliding action
The oil-impregnated design really works. The shaft slides effortlessly without any grit. It's a small part but makes a huge difference in the overall feel of the machine.
Q: What is the exact outer diameter for the 5mm inner bore size?
A: The outer diameter varies slightly depending on the specific wall thickness required for your model. Please refer to the detailed dimension chart in the product images or contact us with your machine model number.
Q: Do I need to add oil to these bushings before installation?
A: No, these are self-lubricating and oil-impregnated. They are ready to install right out of the package. Adding external oil is not necessary and may attract lint.
Q: Are these bushings suitable for high-speed industrial sewing machines?
A: These SF1 bushings are primarily designed for home and light commercial sewing machines. For heavy-duty industrial applications running at very high RPMs, please consult our industrial grade series.
Q: Is there a warranty if the bushing wears out quickly?
A: We offer a 30-day satisfaction guarantee. If the product fails under normal sewing conditions within this period, please contact us for a replacement or refund.
Q: Can these replace plastic bushings in modern machines?
A: Yes, in many cases, these composite copper sleeves offer superior durability and heat resistance compared to standard plastic bushings, provided the dimensions match exactly.
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