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Home / Chains / Copper-Based Alloy Self-Lubricating Graphite Copper Bushing Bearing 22*32*15/20/25/30/35 Oil-Free Guide Sleeve Copper Bushing

Attributes

Brand -
Category New Fashion Jewelry / Chains
Origin -
Material Copper-Based Alloy with Graphite Inserts
Inner Diameter 22 mm
Outer Diameter 32 mm
Length Options 15mm, 20mm, 25mm, 30mm, 35mm
Lubrication Type Self-Lubricating (Oil-Free)
Application Guide Sleeve for Chains and Linear Motion
Operating Temperature -40°C to +250°C
Load Capacity High Static and Dynamic Load
Finish Precision Machined Surface
Corrosion Resistance Excellent in Dry Environments

6 reviews

A

Anonymous

Mar 23, 2026

Rating: 5/5

Precise dimensions

Ordered the 25mm length variant. The machining precision is spot on, matching the spec sheet exactly. No reaming required before installation.

A

Anonymous

Mar 22, 2026

Rating: 4/5

Solid performance under heat

Used these in a high-temperature application near a furnace chain. They held up well where plastic bushings would have melted. Good value for the price.

A

Anonymous

Mar 15, 2026

Rating: 5/5

Excellent for dusty environments

Since there is no oil to attract dust and grit, these graphite copper bushings are ideal for our outdoor chain drives. Durability seems superior to standard bronze.

A

Anonymous

Mar 10, 2026

Rating: 5/5

Reduced downtime significantly

We switched all our guide sleeves to this model. The elimination of manual lubrication schedules has saved us hours of labor every week. Highly recommended.

A

Anonymous

Mar 08, 2026

Rating: 4/5

Good quality, slightly tight fit initially

The material feels very robust. We had to press them in carefully as the tolerance was quite tight, but once installed, they operate silently under heavy load.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Perfect fit for our conveyor chain

These bushings replaced the old oil-lubricated ones perfectly. The self-lubricating feature keeps our production line clean and running smoothly without constant maintenance.

5 FAQ

Q: Are these compatible with stainless steel shafts?

A: Yes, these copper-based alloy bushings are fully compatible with hardened stainless steel shafts and will not cause galling under normal operating conditions.

Q: Can I cut the 35mm length bushing to 28mm myself?

A: We do not recommend cutting the bushings yourself as it may damage the graphite inserts or alter the tolerance. Please order the specific length you require from our available options (15, 20, 25, 30, 35mm).

Q: Do I need to apply any grease during installation?

A: No additional grease is required. The embedded graphite plugs provide sufficient lubrication during the break-in period and throughout the product's life. Applying external grease may attract debris.

Q: What is the maximum static load capacity for the 22x32x30mm size?

A: For the 22x32x30mm dimension, the maximum static load capacity is approximately 60 N/mm². Please consult the detailed engineering datasheet for dynamic load ratings specific to your speed.

Q: Can these bushings be used in submerged water applications?

A: While the copper alloy is corrosion-resistant, these self-lubricating graphite bushings are primarily designed for dry or semi-dry environments. Prolonged submersion may wash out the graphite lubricant over time.

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