Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Base Alloy | High Strength Bronze |
| Solid Lubricant | Graphite Inserts |
| Product Series | JDB Series |
| Inner Diameter | 30 mm |
| Outer Diameter | 38 mm |
| Available Lengths | 25 mm, 30 mm, 40 mm |
| Dynamic Load Rating | 50 N/mm² |
| Max Sliding Speed | 0.5 m/s |
| Operating Temp | -40°C to +250°C |
| Surface Hardness | HB 210 |
Anonymous
Apr 20, 2026
Rating: 5/5
No more oil leaks
Since installing these self-lubricating bearings, we no longer have oil dripping onto the product below. Clean operation.
Anonymous
Apr 12, 2026
Rating: 5/5
Precise dimensions
Ordered the 303830 model. Measurements were spot on according to our calipers. Fit was snug and professional.
Anonymous
Feb 13, 2026
Rating: 4/5
Good value for money
Solid construction. Took off one star because shipping took a bit longer than expected, but the product quality is top notch.
Anonymous
Feb 05, 2026
Rating: 5/5
Excellent for automated lines
We switched to these JDB bushings for our packaging line. The graphite plugs keep things running smoothly without constant greasing. Very satisfied with the durability.
Anonymous
Feb 04, 2026
Rating: 5/5
Handles heat well
Using these near a heat source in our machinery. They handle the temperature range without seizing up.
Q: Can these be used in food processing equipment?
A: Yes, but please ensure the specific alloy meets your local food safety regulations.
Q: What is the recommended shaft tolerance?
A: We recommend a shaft tolerance of e8 or f7 for optimal performance.
Q: What is the lead time for the 303840 model?
A: Most standard sizes ship within 2-3 business days from our warehouse.
Q: Do these require any initial lubrication?
A: No, the graphite plugs provide immediate lubrication upon installation.
Q: Are these sold individually or in packs?
A: These are priced per unit, but bulk discounts apply for orders over 50 pieces.
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