Internal teeth bite plain shafts for threadless, tool-free axial retention; materials: 304/316/65Mn.
Shaft Retaining Washers are designed for axial retention on plain, unthreaded shafts and studs. Internal teeth grip the shaft during press-on installation, securing bearings, gears, hubs and other components without requiring threads, shaft grooves or additional retaining hardware.
Stamping parts manufacturer
Owned factory
Stamping capacity · 120 presses up to 450 T
Quotation response
Shaft Retaining Washers use internal teeth that bite onto plain shafts or studs for threadless axial retention, holding bearings, gears and other rotating parts in place without grooves, threads or tools.
This push-on design eliminates the need for a threaded shaft or retaining groove, which can simplify shaft preparation and reduce the number of components used in an assembly.
Its low-profile structure is also suitable for compact mechanisms where available axial space is limited.
Zhenhua manufactures Shaft Retaining Washers through progressive die stamping and machining, with production controlled under an IATF 16949 quality system. Standard M2–M12 sizes are available, while customized shaft diameters, tooth profiles, wave forms, flange outside diameters and thicknesses can be produced according to drawings.
Typical applications include electric motors, cooling fans, home appliances, automotive components, industrial equipment, bearings and rotating mechanisms.
Internal teeth grip the surface of a plain shaft during installation, providing axial retention without threads or retaining grooves.
The washer can be pressed onto the shaft to simplify assembly and eliminate separate fastening hardware.
Made from 65Mn spring steel and heat-treated to ensure excellent fatigue resistance and long-term load retention.
The inner hole tolerance is controlled within ±0.05 mm to ensure consistent performance in automated press-fitting operations.
Available in AISI 304/316 stainless steel or 65Mn spring steel, with heat treatment applied to achieve the hardness and spring-back performance required for fastening applications.
Shaft Retaining Washers are used to secure components on plain shafts where a groove or threaded fastening method is not preferred.
Used for retaining small rotating components and bearings on motor shafts.
Suitable for compact fan assemblies where low axial height and quick installation are required.
Used in compact mechanisms and rotating components where a simple press-on retention method is preferred.
Suitable for selected shaft-mounted components where threadless axial retention is required.
Used for retaining gears, bearings, hubs and other rotating parts.
For 65Mn products, surface treatment can be selected according to the required corrosion resistance and operating environment. The specific process and lead time are confirmed before production.
Zhenhua manufactures Shaft Retaining Washers using stamping, progressive die production and machining. The manufacturing process operates under an IATF 16949 quality system, with production traceability from raw material through finished components.
For quotation, please provide the shaft diameter, retained component, material, required quantity, application, drawing or sample, packaging requirements and destination country.
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A Shaft Retaining Washer is particularly useful when a plain shaft is preferred and machining a groove or thread would add cost or complexity.
A Yes: the internal-tooth and wave designs bite plain, unthreaded shafts directly, with no grooves or threads required. The shaft diameter should be within the recommended tolerance; the optimal profile is recommended per application.
A A Shaft Retaining Washer provides axial retention by internal-tooth bite without threads or grooves; a plain washer only spreads load, and a circlip requires a groove. Confirm per shaft diameter and load.
A Not recommended: the internal teeth deform during first installation to achieve maximum grip, and spring-back is compromised after removal. Fit new washers for critical joints.
A Materials are AISI 304/316 stainless and 65Mn; stainless plain / polished / passivated, 65Mn with blue-white zinc, black oxide / phosphating, or eco-friendly Dacromet on request. Selection depends on the service environment and is confirmed at inquiry.
AISI 304 standard sizes are generally kept in stock and can be prioritized. Other materials and non-standard sizes typically require approximately 15–30 days, subject to specification and order quantity.
Looking for a push-on retaining solution for a plain shaft?
Send us your shaft diameter, retained component, material, quantity and drawing or sample. Zhenhua will review the application and confirm the suitable washer specification, production lead time and quotation.
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