Description
Reviews
| Brand | - |
| Category | New Fashion Jewelry / Other DIY Jewelry Accessories |
| Origin | - |
| Material | High-Grade Brass with Graphite Plugs |
| Lubrication Type | Self-Lubricating (Oil-Impregnated) |
| Model Series | JDB222825, 253225, 253230, 253520 |
| Inner Diameter Options | 22mm, 25mm |
| Outer Diameter Options | 28mm, 32mm, 35mm |
| Length Options | 20mm, 25mm, 30mm |
| Operating Temperature | -10°C to +120°C |
| Application | DIY Machinery, Automotive, Industrial Equipment |
| Finish | Polished Brass with Embedded Graphite |
| Package Content | 1 x Sleeve Bearing (Size as selected) |
Anonymous
Mar 20, 2026
Rating: 4/5
Solid choice for DIYers
Bought a mix of sizes for various projects. The 22mm version fits perfectly in my drill press modification. They are a bit tighter than standard bronze bushings initially but break in nicely after a few cycles.
Anonymous
Mar 17, 2026
Rating: 4/5
Good quality, slight delay in shipping
The bearing itself is excellent. The self-lubricating feature works well for my low-speed motor application. Only giving 4 stars because shipping took a bit longer than expected, but the product quality makes up for it.
Anonymous
Mar 12, 2026
Rating: 5/5
Exactly as described
Dimensions were spot on when I measured them with calipers. The finish is clean, and the graphite inserts are flush with the surface. Great for replacing worn-out bushings in old machinery.
Anonymous
Mar 07, 2026
Rating: 5/5
Perfect fit for my lathe project
I ordered the 25x32x25 size for a custom DIY lathe build. The graphite plugs are evenly distributed, and the brass quality feels solid. It slides smoothly without needing extra grease immediately. Highly recommended for precision work.
Anonymous
Mar 06, 2026
Rating: 5/5
Best value for money
Compared to local hardware store prices, these are a steal. The self-lubricating property saves me time on maintenance. Will definitely order more sizes for future builds.
Anonymous
Mar 06, 2026
Rating: 5/5
Reliable for heavy-duty use
Using these in a small conveyor system I built. They handle the load nicely and the oil impregnation seems to last a long time. No squeaking or binding after two weeks of continuous operation.
Q: Can these be used in outdoor applications exposed to rain?
A: While the brass material is corrosion-resistant, prolonged exposure to water can wash out the oil impregnation over time. We recommend using a seal or protective housing if the bearing will be directly exposed to the elements.
Q: What is the maximum load capacity for the 25x32x25 model?
A: For dynamic loads, this specific size typically supports up to 30 MPa, and for static loads, it can handle significantly more. However, exact capacity depends on your specific speed and temperature conditions.
Q: Is this suitable for high-speed rotations above 3000 RPM?
A: These self-lubricating brass bushings are generally designed for low to medium speeds. For applications exceeding 3000 RPM, we suggest using ball bearings or consulting an engineer to ensure heat dissipation is adequate.
Q: How do I select the correct size from the options listed?
A: The model numbers correspond to Inner Diameter x Outer Diameter x Length in millimeters. For example, JDB253225 means 25mm ID, 32mm OD, and 25mm Length. Please measure your shaft and housing carefully before ordering.
Q: Do I need to add extra oil before installing this bearing?
A: No, these bearings are oil-impregnated and feature graphite plugs for self-lubrication. They are ready to use right out of the package, though adding a drop of oil during initial installation can help with the break-in period.
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