HZ-10 Self-Lubricating Bearings Manufacturers

What We Manufacture in the HZ-10 Range

Every HZ-10 bearing shares the same composite architecture, and the difference between types is the backing material, the surface filler and the outer geometry. That is what lets us match one family to dry running, to humid or chemically aggressive surroundings, or to a housing that needs a rolled flange instead of a plain cylindrical seat.

• Backing material — low-carbon steel for general machinery, tin bronze for high-temperature and continuous-duty positions, stainless steel for acid, alkali and seawater exposure.
• Surface layer — PTFE with lead, PTFE with fibre, or lead-free PTFE with oil fibre for food, pharmaceutical and potable-water contact.
• Geometry — plain cylindrical bushes, rolled-flange bushes, reverse-coil bushes, and thrust washers from the same material system.
• Backing finish — tin-plated or copper-plated steel strip for corrosion protection and press-fit retention.

Range and Application Fit

The table below maps each HZ-10 type to the material build and the applications it is normally specified for. Sizes follow DIN 1494 for the standard metric series, and non-standard dimensions are produced to drawing.

Technical Data Behind the Selection

The published performance envelope for the HZ-10 composite system is consistent across the family, with the surface filler and backing material setting the practical limits. We use these figures as the starting point when we check a customer's load, speed and temperature against a proposed type.

Layer thickness is held at 0.01–0.03 mm of PTFE surface, 0.2–0.3 mm of sintered bronze and 0.7–2.3 mm of backing, with a 0.005 mm tin or 0.008 mm copper plating on the steel back. Shaft tolerance is f7 and housing bore H7 for the standard metric series, so the bush can be pressed in with a normal interference fit and reamed or sized after installation if the drawing requires it.

Where HZ-10 Fits Against Our Other Ranges

HZ-10 is the dry-running, maintenance-free choice. When the joint is grease-fed or the load is heavier, other families in our product range take over.

• HZ-20 boundary lubricated bearings — POM or leaded-filler surface for greased positions with low friction and low wear rate.
• HZ-800 bimetal composite bearing — steel-backed lead bronze with oil grooves for lubricated, high-load duty.
• HZ-JDB graphite copper sleeve — solid graphite plugs in a metal matrix for extreme load and low speed.
• Thrust washer — axial faces in the same composite system, including oil-hole versions.

Information We Use to Configure Your Solution

A quotation from us is built from the application, not from a stock list. The following inputs let us confirm the type, wall thickness, length and tolerance band, and tell you whether a standard DIN 1494 size will work or a drawing is needed.

• Shaft diameter and housing bore — nominal size and tolerance class, plus the length and any flange or thrust-face requirement.
• Load — radial or axial, static and dynamic, and whether the load is continuous or intermittent.
• Motion — rotating, oscillating or linear, with stroke and cycle rate.
• Speed and PV — sliding velocity and the resulting PV value at the working point.
• Temperature — operating and peak, including any heat soak during start-up or shutdown.
• Environment — moisture, salt, acid or alkali exposure, washdown, dust, and whether food or pharmaceutical contact applies.
• Mating surface — shaft material, hardness and surface finish, since HZ-10 forms a transfer film and tolerates an untreated shaft.
• Volume and packaging — annual quantity, batch size and any labelling or carton requirements.

Production, Quality and Project Support

Our plant in Nanxun runs coil slitting, bronze powder sintering, PTFE calendering, rolling, punching and automatic chamfering, with tooling held for the standard series and for customer-specific sizes. Samples are produced in three days, and the lines support high daily output for repeat programmes. We hold IATF 16949 automotive quality certification, national high-tech enterprise status and a quality management system certificate, and our HZ10 material has been used in automotive shock absorber applications.

For project work we confirm the drawing and tolerance stack before tooling, supply first-article samples for fit and function checks, and keep the material and dimensional records for the delivered batches. Installation guidance covers press-fit practice, chamfering of the housing lead-in, and the option of a light oil film during assembly where the joint runs at the top of its PV range.

Frequently Asked Questions

Can HZ-10 bearings run completely dry?

Yes. The PTFE-based surface layer transfers a film to the mating shaft during running-in, which is what allows dry operation at the published friction coefficient. Dry duty is limited to 2.5 m/s and a continuous PV of 1.8; if the joint is oiled or greased, speed can rise to 5.0 m/s and PV to 60.0.

Which type should I use in a corrosive or washdown environment?

HZ1S uses a stainless steel backing with a lead-free PTFE surface, so it resists oil, acid, alkali and seawater and is suitable for food, pharmaceutical, pump and marine positions. HZ1B with its bronze backing is the choice for humid salt conditions where higher load capacity is also needed.

What shaft hardness and finish do you require?

HZ-10 is designed to run against an untreated shaft. The transfer film protects the counterface, so surface hardening is not mandatory, which reduces the cost of the mating component. A ground finish within the normal range for plain bearings gives the most stable running-in.

Do you supply non-standard sizes and flanged versions?

We produce to drawing as well as to the standard DIN 1494 metric series. Rolled-flange bushes, reverse-coil bushes and thrust washers are all part of the HZ-10 family, and we hold tooling for a wide range of sizes. Send the shaft diameter, housing bore, length and flange dimensions and we will confirm feasibility.

How is the bearing installed and retained?

The standard fit is shaft f7 into housing H7, pressed in with a suitable arbor and a chamfered housing lead-in. The steel back may be tin- or copper-plated to improve corrosion protection and retention. After pressing, the bore can be sized if the drawing calls for a tighter running clearance.

What do you need to quote an HZ-10 bearing programme?

Shaft diameter and housing bore with tolerances, length, load, motion type, speed, temperature, environment and annual quantity. With those inputs we select the type, confirm the wall thickness and plating, and return a configuration with sample timing. Enquiries are answered within 12 working hours.