Mecaline Lock Washer MB 17

Description

The Mecaline MB 17 is a high-quality lock washer, also known as a tab washer, designed according to the DIN 5406 standard. It is an essential component for securing KM and KML series lock nuts on shafts, commonly used in bearing assemblies and other mechanical power transmission systems. Its primary function is to prevent the nut from loosening under vibration or dynamic loads by creating a positive mechanical lock. This ensures the long-term reliability and safety of your machinery.

Specifications

• Manufacturer: Mecaline
• Type: MB 17
• Standard: DIN 5406
• Material: Steel
• Inner Diameter: 85 mm
• Outer Diameter: 110 mm
• Thickness: 1.5 mm

Label Info

• Part Number: 03850116
• Description: MECALINE BORGRING MB 17

Application

This lock washer is widely used in various industrial sectors, including manufacturing, automotive, and heavy machinery. It is specifically designed for use with KM 17 lock nuts to secure bearings and other components onto shafts or adapter sleeves.

Country of Origin

The Mecaline brand is associated with ERIKS, headquartered in the Netherlands.

CO2 Impact

By opting for this pre-owned component, you contribute to a circular economy and help reduce CO2 emissions. The production of a new steel part of this size would generate approximately 0.1 kg of CO2. Choosing this item is a small but meaningful step towards sustainability.

Availability

This item is in stock and ready for immediate dispatch. Order now from PLC2Day for expert support and fast delivery.

FAQ

The external tabs are designed to be bent into the slots of a corresponding KM or KML lock nut after it has been tightened. One of the tabs is bent into a keyway on the shaft, and another is bent into a slot on the nut's circumference. This creates a positive mechanical lock, preventing the nut from rotating and loosening due to vibration.

The Mecaline MB 17, like most DIN 5406 lock washers, is typically manufactured from spring steel or a similar grade of steel that allows the tabs to be bent without fracturing. This provides a durable and reliable locking mechanism for bearing assemblies and other shaft-mounted components.

It is strongly recommended not to reuse a lock washer. Bending the tabs back and forth causes work hardening and metal fatigue, which can lead to the tab breaking off upon re-bending. For critical applications, always use a new lock washer during reassembly to ensure the integrity of the locking system.

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Last Update: Friday, March 13, 2026