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

NSK Bearings Thrust Bearings 51212

Product Overview

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Thrust Bearings/Bearings

51212

Thrust Ball Bearing

Height T26 mm

Product Features

NSK thrust ball bearing, single-direction 51212 series, model 51212: 60 mm shaft-washer bore, 95 mm housing-washer OD, 26 mm height, flat seat
Basic dynamic load rating Ca 71.5 kN, basic static load rating C0a 169 kN (NSK official catalog CAT. No. E1103d)
Limiting speed approx. 2000 min⁻¹ (grease), 3000 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	51212
Series	-	51212 series (single direction, flat seat)
Shaft washer bore d	mm	60
Housing washer OD D	mm	95
Height T	mm	26
Min. chamfer r	mm	1
Seat type	-	Flat seat
Basic dynamic load rating Ca	kN	71.5
Basic static load rating C0a	kN	169
Limiting speed (grease)	min⁻¹	2000
Limiting speed (oil)	min⁻¹	3000

Product Description

The 51212 is an NSK thrust ball bearing from the single-direction 51212 series, standard flat-seat type: 60 mm shaft-washer bore, 95 mm housing-washer outer diameter, 26 mm height. Basic dynamic load rating Ca is 71.5 kN and basic static load rating C0a is 169 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.