Attributes

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

6 reviews

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.

5 FAQ

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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