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51111 Single Direction Thrust Ball Bearing

51111 single-direction thrust ball bearing with 55 mm bore, 78 mm OD, 16 mm width. Designed for axial loads in one direction. Separable components simplify mounting and inspection. Low-friction ball and raceway contact. Review shaft fit, loads, lubrication and working conditions before replacement.
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  • 51111

  • BWK

  • BWK-51111

DESCRIPTION

Product Overview

51111 is a single-direction thrust ball bearing. Designed for axial loads in one direction. Separable components simplify mounting and inspection. Low-friction ball and raceway contact. It is intended for industrial replacement and OEM applications where the specified envelope dimensions and design match the operating requirement.

Key Features

  • Designed for axial loads in one direction

  • Separable components simplify mounting and inspection

  • Low-friction ball and raceway contact

51111

Technical Specifications

Model 51111
Product Type Single Direction Thrust Ball Bearing
Bore Diameter 55 mm
Outside Diameter 78 mm
Width 16 mm
Design Single direction; separable shaft washer, housing washer and ball-cage assembly
Seal Type Open
Ring / Rolling Element Material Chrome steel
Cage Pressed steel
Lubrication Grease or oil

Typical Applications

  • Machine tool spindles and lead screws

  • Vertical shafts and pumps

  • General industrial equipment

Selection Guidance

Use for axial loading only. Verify washer seating, minimum load, speed and lubrication before selection.

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51111 single-direction thrust ball bearing 55 mm bore Industrial Bearing replacement bearing BWK