The Timken Company TW113 Bearing Locking Washer

Description:

The Timken TW113 bearing lock washer is used to securely lock bearing locknuts in place on adapter sleeves and shaft assemblies, preventing loosening caused by vibration and rotational forces. Commonly installed with spherical roller bearings, withdrawal sleeves, and adapter sleeve assemblies in conveyors, mining equipment, gearboxes, and heavy industrial machinery. Maintenance teams, OEMs, and system integrators use this lock washer for replacement, repair, retrofit, and equipment overhaul to maintain secure bearing retention and reliable equipment operation.

Applications:

The Timken TW113 is a steel bearing lock washer designed for use with compatible Timken locknuts and adapter assemblies to provide a positive mechanical locking method. Its multiple tang design allows the washer to engage the shaft keyway and locknut slots, making it suitable for mining equipment, aggregate processing, conveyor systems, steel mills, paper mills, and other heavy-duty industrial applications where secure bearing mounting is essential.

Technical Specifications:

• Manufacturer: Timken
• Manufacturer Part Number (MPN): TW113
• Product Type: Bearing lock washer
• Series: TW Series
• Material: Steel
• Compatible Locknut Series: AN Series, N Series
• Compatible Locknut: TN-13
• Shaft Diameter: 65 mm
• Face Diameter: 3.063 in (77.8 mm)
• Outside Diameter Over Tangs: 3.563 in (90.5 mm)
• Thickness: 0.072 in (1.83 mm)
• Number of Tangs: 19
• Function: Secures bearing locknuts and prevents loosening due to vibration and shaft rotation
• Application: Bearing mounting assemblies, adapter sleeves, and withdrawal sleeves

Common Replacements:

• Timken TW113-2
• SKF MB13 lock washer equivalent
• NTN TW113 equivalent