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Home / Bearings & Bushings / MPBZ13-10/12/15/20/25/30 Copper Alloy Straight Column Oil-Free Bushing Graphite Self-Lubricating Bronze Shaft Sleeve

Attributes

Brand -
Category Industrial Small Parts / Bearings & Bushings
Origin -
Material Composition High-Strength Copper Alloy with Graphite Plugs
Lubrication Type Self-Lubricating (Oil-Free)
Bushing Style Straight Column
Model Series MPBZ13
Available Inner Diameters 10mm, 12mm, 15mm, 20mm, 25mm, 30mm
Hardness Rating HB 200 - 250
Max Operating Temperature 250°C
Min Operating Temperature -40°C
Surface Finish Precision Machined
Application Industry Industrial Machinery & Automation

5 reviews

A

Anonymous

Apr 18, 2026

Rating: 5/5

Withstands heat well

Used these in a high-temperature environment near a furnace feed. They performed consistently without seizing. The self-lubrication holds up well under thermal stress.

A

Anonymous

Apr 16, 2026

Rating: 5/5

Consistent sizing

Ordered multiple sizes for different machines. All dimensions were within expected tolerances. Packaging was secure and prevented any damage during shipping.

A

Anonymous

Mar 23, 2026

Rating: 5/5

Perfect for automation lines

We replaced our standard oiled bushings with these MPBZ13 units. The self-lubricating feature has significantly reduced maintenance downtime on our conveyor system. Fit was precise.

A

Anonymous

Mar 15, 2026

Rating: 5/5

High quality alloy

The copper alloy feels robust and durable. We have been running these for three months continuously without any signs of wear. Great value for the price point.

A

Anonymous

Feb 05, 2026

Rating: 5/5

No maintenance needed

Excellent product for hard-to-reach areas where oiling is difficult. The graphite plugs work smoothly even under high load conditions. Highly recommended for industrial use.

5 FAQ

Q: Do you offer bulk discounts for orders over 100 units?

A: Yes, volume pricing is available. Please contact our sales department directly through the inquiry form for a customized quote.

Q: What is the percentage of graphite in the alloy?

A: The exact formulation is proprietary, but the graphite plugs are strategically placed to ensure optimal lubrication coverage during rotation.

Q: What is the lead time for the 30mm size?

A: The 30mm variant is typically in stock and ships within 1-3 business days. Custom sizes may require additional production time.

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

A: These are designed for dry or semi-dry industrial environments. Submerged use is not recommended as it may affect the graphite lubrication efficiency.

Q: What is the tolerance range for the inner diameter?

A: Standard tolerance is H7 for the inner diameter and g6 for the outer diameter. Please consult the technical datasheet for specific size variations.

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