Description
Reviews
| Brand | - |
| Category | Industrial Small Parts / Bearings & Bushings |
| Origin | - |
| Material Composition | High-Grade Copper Alloy |
| Model Number | HRB-78 |
| Inner Diameter | 20 mm |
| Outer Diameter | 28 mm |
| Overall Length | 35 mm |
| Hardness Rating | HB 85-95 |
| Surface Finish | Smooth Polished |
| Dimensional Tolerance | ISO H7/f7 |
| Manufacturing Origin | Manufacturer Direct |
| Customization | Machining Available |
Anonymous
Mar 21, 2026
Rating: 5/5
Precise Measurements
Measured the dimensions upon arrival and they are within the stated tolerance. Great for precision engineering projects.
Anonymous
Mar 21, 2026
Rating: 5/5
Very Durable Component
We use these in high-friction applications and they hold up well. The wear resistance is exactly as described in the specs.
Anonymous
Mar 14, 2026
Rating: 4/5
Good Value for Money
Solid material and good machining tolerance. Shipping took a bit longer than expected, but the product quality makes up for it.
Anonymous
Mar 03, 2026
Rating: 4/5
Reliable Supplier
Product is good and matches the description. Would appreciate more packaging protection, but the bushing itself was undamaged.
Anonymous
Feb 01, 2026
Rating: 5/5
Excellent Fit for Machinery
These bushings fit perfectly into our lathe setup. The copper quality is top-notch and shows no signs of wear after weeks of operation.
Q: What is the return policy if the dimensions are incorrect?
A: We accept returns within 30 days if the product does not match the specified dimensions. Please contact support to initiate.
Q: What type of lubrication is recommended for this copper sleeve?
A: Standard industrial grease or oil suitable for copper alloys is recommended depending on your operating speed and load.
Q: Can you cut these bushings to custom lengths?
A: Yes, we offer machining services. Please contact our support team with your specific dimensions for a quote.
Q: Do you offer discounts for bulk orders?
A: Yes, we provide tiered pricing for bulk purchases. Please reach out to sales for a customized quote.
Q: Is a material certification included with the shipment?
A: Yes, a standard material certificate is included with every order upon request at checkout.
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