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Home / Bearings & Bushings / JDB Inner Diameter 75-200MM Graphite Copper Bushing, Self-Lubricating Oil-Free Sleeve, Mold Guide Bushing, Wear-Resistant Sliding Copper Bushing

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material Composition High-Strength Bronze with Solid Graphite Plugs
Inner Diameter Specification 75 mm to 200 mm (Customizable)
Lubrication Method Self-Lubricating (No External Oil Required)
Maximum Static Load 250 N/mm²
Maximum Sliding Velocity 0.5 m/s
Operating Temperature Range -40°C to +250°C
Hardness (Brinell) HB 90 - 120
Surface Roughness Ra 0.8 μm
Typical Application Injection Mold Guides, Hydraulic Cylinders
Compliance Standard ISO 3547 / DIN 1494

5 reviews

A

Anonymous

Apr 05, 2026

Rating: 4/5

Good quality, slight delay

Bushings are durable and work well in high-load scenarios. Shipping took a bit longer than expected.

A

Anonymous

Mar 19, 2026

Rating: 5/5

Reliable industrial component

Ordered multiple sizes for our hydraulic presses. Consistent quality across the entire batch.

A

Anonymous

Mar 02, 2026

Rating: 5/5

Excellent wear resistance

We replaced our old oil-lubricated bushings with these. No more leaks and less downtime overall.

A

Anonymous

Feb 17, 2026

Rating: 4/5

Solid performance

Works well in dusty environments where oil attracts grit. Would prefer clearer installation docs.

A

Anonymous

Jan 30, 2026

Rating: 5/5

Perfect for our mold guides

Fit exactly as specified. The self-lubricating feature saved us maintenance time on the production line.

5 FAQ

Q: Do these require break-in period?

A: A short run-in period is recommended to allow graphite transfer to the mating surface.

Q: Are these resistant to coolant fluids?

A: Yes, bronze graphite is generally resistant to common industrial coolants and oils.

Q: Can you customize the outer diameter?

A: Yes, we offer custom machining based on your drawings. Please contact sales for a quote.

Q: What is the press fit tolerance?

A: Recommended H7/p6 fit for standard applications. Check technical datasheet for specifics.

Q: What is the lead time for 50 units?

A: Standard sizes ship within 5-7 business days. Custom sizes may take 2-3 weeks.

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