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Home / Car Washers / MPBZ20A-15/20/30/40/50/60 Copper Alloy Straight Column Oil-Free Bushing Graphite Self-Lubricating Bronze Sleeve

Attributes

Brand -
Category Home Appliances / Car Washers
Origin -
Material High-Strength Copper Alloy with Graphite Plugs
Type Straight Column Oil-Free Bushing
Lubrication Self-Lubricating (Graphite Embedded)
Available Sizes 15mm, 20mm, 30mm, 40mm, 50mm, 60mm ID
Application High-Pressure Pump Mechanisms
Operating Temperature -40°C to +250°C
Load Capacity High Dynamic Load Resistance
Corrosion Resistance Excellent resistance to water and detergents
Maintenance Maintenance-Free Operation
Compatibility Fits Standard MPBZ20A Series Car Washers

6 reviews

A

Anonymous

Mar 28, 2026

Rating: 4/5

Durable and well-made

The build quality is excellent. The graphite plugs are evenly distributed. I bought the 30mm size for a commercial unit. It runs quieter than the original plastic bushing did.

A

Anonymous

Mar 16, 2026

Rating: 5/5

Great for high-frequency use

We run our car wash station 10 hours a day. These bronze sleeves hold up incredibly well under constant friction and water exposure. No signs of wear after three months.

A

Anonymous

Mar 14, 2026

Rating: 4/5

Solid performance

Good value for money. The copper alloy feels substantial. Only giving 4 stars because shipping took a bit longer than expected, but the product itself is top-notch.

A

Anonymous

Mar 11, 2026

Rating: 5/5

Solved my squeaky pump issue

The noise from my pressure washer pump is completely gone. The graphite lubrication works immediately upon installation. Highly recommend for anyone needing a reliable bushing.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Perfect replacement for my pressure washer pump

My old bushing wore out after years of use. This copper alloy replacement fits perfectly and the self-lubricating feature means I don't have to worry about oil contamination in the water stream. Very smooth operation.

A

Anonymous

Mar 09, 2026

Rating: 5/5

Exact fit for MPBZ20A model

Ordered the 20mm variant. Dimensions were spot on. Installation was straightforward. The self-lubricating aspect is a huge plus for keeping the maintenance schedule simple.

5 FAQ

Q: Is the 40mm size suitable for saltwater environments?

A: Yes, the copper alloy material offers excellent corrosion resistance, making it suitable for both fresh and saltwater applications commonly found in mobile car washing.

Q: Does this bushing require additional grease or oil during installation?

A: No, this is a self-lubricating bushing with embedded graphite plugs. It is designed to operate without any additional external lubrication.

Q: Can I use this to replace a brass bushing in an older model?

A: In most cases, yes, provided the dimensions match exactly. The copper alloy is often more durable than standard brass. Please verify your specific inner and outer diameter measurements before ordering.

Q: How long is the warranty on these components?

A: We offer a 1-year manufacturer warranty against defects in material and workmanship under normal operating conditions.

Q: What is the maximum RPM these bushings can handle?

A: These bushings are rated for standard high-pressure pump speeds typically found in car washers, generally up to 3000 RPM depending on the specific load conditions.

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