Description
Reviews
| Brand | - |
| Category | Stationery, Educational Electronics & Office Supplies / Tape Dispensers |
| Origin | - |
| Material | Steel Backing with Porous Bronze and PTFM Overlay |
| Inner Diameter | 30 mm |
| Outer Diameter | 34 mm |
| Length | 10 mm |
| Type | SF-1 Self-Lubricating Composite Bushing |
| Max Load Capacity | 250 N/mm² (Static) |
| Friction Coefficient | 0.03 - 0.10 (Dry Running) |
| Operating Temperature | -40°C to +110°C |
| Surface Finish | Precision Machined for Smooth Sliding |
| Application | Automotive, Hydraulic Cylinders, and Industrial Machinery |
Anonymous
Mar 30, 2026
Rating: 4/5
Solid bearing for the price
Does exactly what it says. Easy to press fit into the housing. The sliding motion is very smooth right out of the box. Good value for money.
Anonymous
Mar 22, 2026
Rating: 4/5
Good quality, fast shipping
The bronze composite material feels very durable. I used them in a low-speed, high-load mechanism. They run smoothly and quietly. Took off one star only because the packaging was a bit loose.
Anonymous
Mar 17, 2026
Rating: 5/5
Perfect fit for my hydraulic repair
Ordered these SF-1 bearings for a custom project. The dimensions were exact (30x34x10), and the self-lubricating feature works great without needing grease. Highly recommended for sliding applications.
Anonymous
Mar 17, 2026
Rating: 5/5
Great for automotive suspension links
Replaced old rubber bushings with these metal composite ones on my off-road vehicle. Much better durability and no squeaking. The 30mm size was spot on.
Anonymous
Mar 10, 2026
Rating: 5/5
Reliable industrial component
We use these regularly in our maintenance shop. The SF-1 type is standard for us now. Consistent quality and the PTFE layer ensures long life even in dry conditions.
Anonymous
Mar 03, 2026
Rating: 5/5
Excellent oil-free performance
Needed an oil-free solution for a food processing conveyor modification. These bushings are perfect. No contamination risk and they handle the load well.
Q: What is the maximum shaft speed recommended for this 30mm bearing?
A: For a 30mm inner diameter SF-1 bearing, the maximum recommended sliding speed is typically around 2.5 m/s under moderate load. Higher speeds may require additional cooling or lubrication.
Q: Is this bearing suitable for underwater applications?
A: While the SF-1 material is corrosion-resistant to some degree, it is primarily designed for dry or intermittent lubrication environments. For continuous submerged use, we recommend stainless steel variants or specific marine-grade bushings.
Q: What is the lead time for bulk orders of 500 units?
A: For orders over 100 units, please contact our sales department directly. Standard stock items usually ship within 2-3 business days, but bulk quantities may take 1-2 weeks depending on current inventory levels.
Q: Can this replace a standard bronze bushing directly?
A: In many cases, yes, provided the dimensions match. However, SF-1 composite bearings often allow for thinner wall sections due to higher load capacity, so please verify your housing constraints before swapping.
Q: Do I need to ream the hole after pressing this in?
A: Yes, it is standard practice to ream or hone the bore after press-fitting self-lubricating bushings to account for any compression of the liner and ensure the correct final clearance for the shaft.
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