Description
Reviews
| Brand | - |
| Category | Model / Hobby Parts / Model Making Tools & Supplies |
| Origin | - |
| Material | High-Purity Copper Alloy HRB-78 |
| Application | Wear-resistant bushings and liner accessories |
| Processing Method | Precision CNC Machining and Casting |
| Hardness Range | HB 180 - 220 |
| Surface Finish | Polished to Ra 0.8 micron |
| Customization | Available for non-standard dimensions |
| Package Contents | 1x Copper Liner Unit, 1x Installation Guide |
| Origin | Direct Manufacturer Sales |
| Lead Time | 3-5 business days for stock items |
| Compatibility | Suitable for heavy-duty model machinery frameworks |
Anonymous
Mar 23, 2026
Rating: 4/5
Good value for money
Solid construction and good weight. The price point is very competitive compared to other suppliers. I wish the packaging was slightly more robust, but the item was undamaged upon arrival.
Anonymous
Mar 22, 2026
Rating: 5/5
Exactly what I needed
Bought this for a restoration project on an old mechanical model. The HRB-78 alloy matches the original specs perfectly. Easy to work with and provides excellent durability.
Anonymous
Mar 11, 2026
Rating: 5/5
Professional grade components
As a professional prototyper, I need reliable materials. These copper liners meet industrial standards while being accessible for hobbyist projects. The surface finish is smooth and ready for installation.
Anonymous
Mar 10, 2026
Rating: 5/5
Excellent quality for custom builds
The HRB-78 copper liner arrived exactly as described. The machining tolerance is impressive, fitting perfectly into my custom chassis without needing additional reaming. Highly recommended for serious model makers.
Anonymous
Mar 04, 2026
Rating: 4/5
Great material, slow shipping
The copper bushing itself is top-notch wear-resistant material. It feels solid and durable. Only giving 4 stars because the shipping took a bit longer than expected, but the product quality makes up for it.
Anonymous
Mar 02, 2026
Rating: 5/5
Perfect for high-friction areas
I used these liners in a high-torque gear assembly for a large scale model. The friction reduction is noticeable, and there is no sign of wear after several hours of operation. Will buy again.
Q: What is the maximum operating temperature for HRB-78?
A: The HRB-78 copper alloy can safely operate in environments up to 200°C (392°F) without losing structural integrity or wear resistance.
Q: How do I clean the liner before installation?
A: We recommend wiping the surface with a lint-free cloth and a mild solvent like isopropyl alcohol to remove any manufacturing oils before installation.
Q: Can these liners be cut to custom lengths?
A: Yes, we offer customization services. Please contact our support team with your specific dimensions before placing your order.
Q: Is this compatible with brass gears?
A: Yes, the HRB-78 copper liner is fully compatible with brass gears and helps reduce wear on the mating surfaces effectively.
Q: Do you provide bulk discounts for wholesale orders?
A: Absolutely. We offer tiered pricing for bulk purchases. Please reach out to our sales department for a customized quote based on your volume needs.
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