NSK 51117 Thrust Ball Bearing (Single Direction) – 85x110x19 mm – Made in Japan

Item Details

·         Brand: NSK

·         Part Number: 51117

·         Bearing Type: Thrust Ball Bearing (Single Direction / One-Way Axial)

·         Design: Axial deep groove ball (open design), non-self-aligning (flat seat)

·         Cage: Steel cage (standard type)

·         Precision: Standard (P0 / PN2 / ABEC 1)

·         Country of Origin: Japan

·         HS / Customs Tariff Code: 8482 1090

·         EAN / UPC: 00029176026478

Dimensions

·         Bore / Inner Diameter (d): 85 mm (3.3465 in)

·         Outer Diameter (D): 110 mm (4.3307 in)

·         Width (B): 19 mm (0.748 in)

·         Weight: 0.46 kg (approx.)

Key Features

·         Handles axial (thrust) load in ONE direction only (single direction)

·         High-speed capable due to ball design

·         Separable construction (shaft washer + housing washer + ball/cage assembly) for easy mounting

·         Open bearing (no seals/shields) – typically used with oil/grease lubrication provided by the application

·         Not suitable for radial loads (do not use to support radial forces)

Important Installation Notes

·         Do not mix the shaft washer and housing washer during assembly

·         Requires good alignment: this bearing does not compensate for misalignment (flat seat / non-angle adjustable)

·         If your application has misalignment, consider a self-aligning thrust bearing or a different arrangement.

Common Applications (Typical Uses)

·         Gearboxes and transmissions (axial positioning / thrust support)

·         Pumps and compressors (thrust support on shafts)

·         Electric motors and generators (axial location when radial bearing is separate)

·         Machine tools, screw drives, and industrial machinery where axial load is present in one direction

·         General mechanical assemblies requiring shaft thrust control (one-way)

PACKAGE INCLUDES: ONE (1) NSK Bearing 51117