HZ-090 single metal copper sleeve Manufacturers

HZ-090 Series Range and Application Fit

The HZ-090 family is built around a thin-wall, high-density copper alloy strip. Compared with traditional cast copper sleeves, the rolled strip structure avoids shrinkage porosity, raises load-bearing capacity and improves wear and fatigue resistance. We produce oil holes, pits and grooves directly on the friction surface so each sleeve retains grease and extends the relubrication interval.

These bushings suit medium to high load, medium to low speed, humid and high-temperature conditions. Typical installations include lifting equipment, construction and metallurgy machinery, forestry and agricultural implements, machine tools and automotive steering or braking components.

Material and Construction Choices

We select the alloy and wall thickness from the working point rather than from a catalogue default. Tin bronze grades give the highest load and temperature margin; brass grades offer good machinability and corrosion tolerance where loads are moderate. The strip is rolled to high density, then formed and finished with the oil-feature pattern required by the application.

• Alloy options: CuSn8P tin bronze (QSn8-0.3 or QSn6.5-0.1) and CuZn31Si brass (H62 or H68).
• Wall structure: thin-wall rolled strip for compact assembly envelopes; solid bronze for flanged and high-axial-load designs.
• Oil features: straight oil holes, diamond-pattern grooves, punched perforations, oil pits or plain bore.
• End forms: straight sleeve, flanged sleeve, thrust plate, pressure bearing, plank or slide plate.
• Assembly: press fit into a machined housing; grease is applied before seals are fitted at both ends.

Critical Specifications and Operating Envelope

The table below summarises the published performance limits for the main HZ-090 sub-types. Use it to match the bushing to load, speed and temperature before we confirm a final drawing.

Configuration and Customisation

Standard products include straight bushings, thrust plates and pressure bearings. Non-standard work covers straight bushings, thrust plates, planks, bearing bushings, slide plates and steel bushing assemblies. We machine oil holes, pits and grooves to suit the lubrication method and the contamination level of the site.

For high-volume programs we produce samples in three days and support daily output of 500,000 pieces across the factory. Tooling and dies are held in-house, which allows us to adjust bore, wall, flange and groove geometry without restarting the process chain.

Quality, Installation and Serviceability

Huazhou operates a quality management system and holds IATF16949 automotive certification and national high-tech enterprise recognition. Incoming strip, formed bushings and finished oil features are checked against the approved drawing before packing.

• Installation: press the sleeve into a clean, burr-free housing; apply grease before fitting end seals.
• Fit: confirm housing bore and shaft tolerance against the drawing to avoid creep or bore distortion.
• Maintenance: oil holes and grooves retain grease, extending the relubrication interval compared with plain bronze bushings.
• Spares: replacement sleeves are produced from the same tooling for repeat orders.

Related Bearing Range

Where the duty cycle moves away from grease-lubricated bronze, we supply adjacent product families from the same factory. HZ-10 self-lubricating bearings cover maintenance-free positions, while HZ-800 bimetal composite bearing suits higher-load lubricated applications. Graphite copper sleeves, thrust washers and engineering plastic bearings complete the range for mixed-material assemblies.

Information We Use to Configure Your Solution

To prepare a proposal we work from the application data below. Where a drawing already exists, we quote against it and confirm the oil-feature pattern and alloy grade.

• Shaft diameter, housing bore and sleeve length or flange dimensions.
• Radial load, axial load and whether the motion is rotating or oscillating.
• Shaft speed or stroke frequency and the resulting PV value.
• Operating temperature range and ambient conditions (dust, moisture, washdown).
• Lubrication method: grease, oil, or initial fill only.
• Required oil-feature pattern: holes, diamond grooves, pits or plain bore.
• Annual quantity, batch size and packaging or marking requirements.

Frequently Asked Questions

What is the main advantage of the HZ-090 single metal copper sleeve?

The thin-wall rolled strip structure saves assembly space and bronze material while providing high density, no shrinkage porosity and strong load-bearing capacity. Oil holes and grooves store grease, extending the lubrication interval.

Which industries use HZ-090 bushings?

They are widely used in agricultural machinery, construction and engineering machinery, automotive steering and braking systems, lifting equipment, metallurgy, forestry and machine tools.

Can Huazhou produce custom oil groove patterns and flanged versions?

Yes. We machine oil holes, diamond-pattern grooves, pits and flanges on the friction surface. Flanged versions such as HZ090F provide axial location and simplify installation in gearboxes, pumps and conveyor systems.

What is the difference between HZ090 tin bronze and HZ092 brass bushings?

HZ090 uses CuSn8P tin bronze with a maximum dynamic load of 100 MPa and linear speed of 2.5 m/s. HZ092 uses CuZn31Si brass with 90 MPa and 1.5 m/s, making it suitable for lower-load, lower-speed positions where brass corrosion resistance is useful.

How do I request a quotation for HZ-090 bushings?

Send the shaft and housing dimensions, load, speed, temperature, lubrication method and annual quantity. We reply within 12 hours of the working day and can produce samples in three days for evaluation.