Timken TN11 Bearing Lock Nut

Description:

The Timken TN11 bearing lock nut is used to securely mount bearings, adapter sleeves, and withdrawal sleeves on 2.1570-18 threaded shafts in industrial power transmission systems. Commonly installed in gearboxes, conveyors, mining equipment, paper mills, steel mills, and other heavy-duty rotating machinery using spherical roller bearings. Maintenance teams, OEMs, and system integrators use this lock nut for replacement, repair, retrofit, and equipment overhaul to ensure accurate bearing positioning and prevent loosening during operation.

Applications:

The Timken TN11 is a standard TN Series bearing lock nut designed for use with compatible lock washers to provide a secure mechanical locking method for mounted bearing assemblies. It is commonly used with adapter sleeves and withdrawal sleeves to accurately position and retain spherical roller bearings on shafts in conveyors, industrial drives, mining equipment, aggregate processing plants, pulp and paper mills, and other demanding industrial applications.

Technical Specifications:

• Manufacturer: Timken
• Manufacturer Part Number (MPN): TN11
• Product Type: Bearing lock nut
• Series: TN Series
• Material: Steel
• Thread Size: 2.1570-18 in (NS Class 3)
• Thread Direction: Right-hand
• Bore (Inside Diameter): 55 mm
• Outside Diameter: 2.974 in (75.54 mm)
• Face Diameter: 2.656 in (67.46 mm)
• Width: 0.510 in (12.95 mm)
• Compatible Lock Washer: TW111
• Lock Nut Type: For lock washer
• Application: Bearing mounting, adapter sleeves, and withdrawal sleeves for spherical roller bearings

Common Replacements:

• Timken TN11-2
• SKF KM11 lock nut equivalent
• NTN AN11 lock nut equivalent