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

NSK Bearings Thrust Bearings 51314

Product Overview

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Thrust Bearings/Bearings

51314

Thrust Ball Bearing

Height T40 mm

Product Features

NSK thrust ball bearing, single-direction 51314 series, model 51314: 70 mm shaft-washer bore, 125 mm housing-washer OD, 40 mm height, flat seat
Basic dynamic load rating Ca 137 kN, basic static load rating C0a 315 kN (NSK official catalog CAT. No. E1103d)
Limiting speed approx. 1400 min⁻¹ (grease), 2000 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	51314
Series	-	51314 series (single direction, flat seat)
Shaft washer bore d	mm	70
Housing washer OD D	mm	125
Height T	mm	40
Min. chamfer r	mm	1.1
Seat type	-	Flat seat
Basic dynamic load rating Ca	kN	137
Basic static load rating C0a	kN	315
Limiting speed (grease)	min⁻¹	1400
Limiting speed (oil)	min⁻¹	2000

Product Description

The 51314 is an NSK thrust ball bearing from the single-direction 51314 series, standard flat-seat type: 70 mm shaft-washer bore, 125 mm housing-washer outer diameter, 40 mm height. Basic dynamic load rating Ca is 137 kN and basic static load rating C0a is 315 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.