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Home / USB Multi-Function Power Bank / 6570 7075 SF-1 Composite Self-Lubricating Bearing Oil-Impregnated Bushing Wear-Resistant Copper Sleeve Rolled Bushing Iron Sleeve

Attributes

Brand -
Category 3C Digital Accessories / USB Multi-Function Power Bank
Origin -
Material Composition SF-1 Composite with Bronze Backing and PTFM Liner
Inner Diameter 65 mm
Outer Diameter 70 mm
Length 75 mm
Load Capacity High Static and Dynamic Load Bearing
Friction Coefficient 0.04 - 0.12 (Self-Lubricating)
Operating Temperature -40°C to +110°C
Surface Treatment Oil-Impregnated for Extended Life
Application Type Automotive, Hydraulic, and Industrial Machinery
Durability Rating Wear-Resistant with High Fatigue Strength

6 reviews

A

Anonymous

Mar 26, 2026

Rating: 4/5

Good quality, fast shipping

The bushing feels solid and well-made. The bronze backing provides good strength. Only giving 4 stars because the packaging was slightly damaged, though the product was fine.

A

Anonymous

Mar 23, 2026

Rating: 5/5

Reliable for heavy machinery

Purchased for our excavator maintenance. The load capacity is impressive, and it handles the dust and debris without seizing up.

A

Anonymous

Mar 21, 2026

Rating: 5/5

Perfect fit for hydraulic repair

Ordered these for a hydraulic cylinder rebuild. The dimensions were exact, and the self-lubricating feature saved us time on installation. Very smooth operation after testing.

A

Anonymous

Mar 17, 2026

Rating: 5/5

Great value for money

Compared to OEM parts, these are significantly cheaper but perform just as well. The oil-impregnated layer works exactly as described.

A

Anonymous

Mar 12, 2026

Rating: 4/5

Solid component

Does the job well. Installation required standard pressing tools. No squeaking or binding during initial run-in period.

A

Anonymous

Mar 07, 2026

Rating: 5/5

Excellent wear resistance

We use these in high-vibration environments. After three months of continuous use, there is virtually no sign of wear. Highly recommend for industrial applications.

5 FAQ

Q: Can this be cut to a custom length?

A: Yes, the material can be machined or cut to custom lengths using standard metalworking tools, provided you deburr the edges afterward.

Q: What is the lead time for bulk orders of 500 units?

A: For orders over 100 units, please contact our sales team directly. Standard bulk orders typically ship within 5-7 business days from our warehouse.

Q: What is the maximum pressure this bearing can withstand?

A: The static load capacity is up to 250 N/mm², and the dynamic load capacity is approximately 140 N/mm², depending on the sliding speed.

Q: Is this bushing suitable for underwater applications?

A: While the material is corrosion-resistant, this specific SF-1 composite is designed for general industrial use. For constant submersion, we recommend checking our marine-grade series.

Q: Do I need to add extra grease during installation?

A: No, the bushing comes pre-impregnated with lubricant. Adding extra grease is not necessary unless specified for extreme operating conditions.

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