SEEGER SR160x12.5

Seeger SR160x12.5 Heavy-Duty Retaining Ring

Description

This is a Seeger external retaining ring, part number SR160x12.5, designed for securing components on a 160 mm diameter shaft. Made from high-grade spring steel, this ring fits into a machined groove to provide a reliable shoulder for locating and retaining parts such as bearings, gears, and pulleys. Its substantial 12.5 mm radial width offers superior resistance to axial forces, making it ideal for heavy-duty industrial applications.

Specifications

• Manufacturer: Seeger
• Type: SR160x12.5
• Product Type: External Retaining Ring
• Nominal Shaft Diameter (d1): 160 mm
• Radial Width (b): 12.5 mm
• Material: Spring Steel

Label Info

• Stamped on part: SR160X12.5

Application

This retaining ring is used in a wide range of mechanical and automotive engineering applications, including gearbox assemblies, motor shafts, and heavy machinery, to prevent axial movement of components.

Country of Origin

Germany

CO2 Impact

By purchasing this reused component, you are helping to avoid approximately 0.4 kg of CO2 emissions associated with the production of a new steel part. This is a positive step towards a more circular and sustainable industrial economy.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the main difference between this SR160x12.5 ring and a standard DIN 471 ring for the same shaft size?

The key difference is the cross-section. This SR160x12.5 ring has a significantly larger radial width (12.5 mm) compared to a standard DIN 471 – 160×4 ring, which has a thickness of 4 mm. This suggests the SR-type is designed for applications with much higher axial/thrust loads where a wider contact surface in the groove is required for stability and strength.

What type of material is this ring typically made from and what are its properties?

Retaining rings like this are almost always made from high-carbon spring steel (like Ck 75 or an equivalent) that has been hardened and tempered. This provides high tensile strength and elasticity, allowing the ring to be expanded for installation and then securely snap back into its groove without permanent deformation.

Are special tools required for installing a ring of this size and type?

While smaller retaining rings use standard circlip pliers, a large, heavy-duty ring of 160mm diameter often requires specialized installation tools. Due to its stiffness and lack of traditional plier lugs, installation may involve tapered plugs, cones, or custom hydraulic or mechanical applicators to safely expand the ring over the shaft and seat it in the groove.

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Last Update: Friday, March 13, 2026