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Product Series of Automation-Related Precision Ball Screws and Linear Rails – High-Precision Ball Screws

NSK Bearings Thrust Bearings 51112

Product Overview

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Thrust Bearings/Bearings

51112

Thrust Ball Bearing

Height T17 mm

Product Features

NSK thrust ball bearing, single-direction 51112 series, model 51112: 60 mm shaft-washer bore, 85 mm housing-washer OD, 17 mm height, flat seat
Basic dynamic load rating Ca 41.5 kN, basic static load rating C0a 113 kN (NSK official catalog CAT. No. E1103d)
Limiting speed approx. 2600 min⁻¹ (grease), 4000 min⁻¹ (oil)
Carries pure axial load in one direction only — no radial capacity; shaft washer and housing washer must not be reversed
Nahshon is NSK's distributor in Taiwan — add the part number to your inquiry list

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Product Specifications

Specification	Unit	51112
Series	-	51112 series (single direction, flat seat)
Shaft washer bore d	mm	60
Housing washer OD D	mm	85
Height T	mm	17
Min. chamfer r	mm	1
Seat type	-	Flat seat
Basic dynamic load rating Ca	kN	41.5
Basic static load rating C0a	kN	113
Limiting speed (grease)	min⁻¹	2600
Limiting speed (oil)	min⁻¹	4000

Product Description

The 51112 is an NSK thrust ball bearing from the single-direction 51112 series, standard flat-seat type: 60 mm shaft-washer bore, 85 mm housing-washer outer diameter, 17 mm height. Basic dynamic load rating Ca is 41.5 kN and basic static load rating C0a is 113 kN (NSK official catalog CAT. No. E1103d). Thrust ball bearings carry pure axial load in one direction only — no radial capacity — and are common in worm-gear reducers, screw jacks and valve actuator shafts where low-speed axial thrust must be supported.

Inquiries & customization

Add this part number to your inquiry list — Nahshon is NSK's distributor in Taiwan and works directly with the factory to confirm specifications, stock and pricing.