L
o
a
d
i
n
g
.
.
.

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

NSK Bearings Thrust Bearings 51310

Product Overview

L
o
a
d
i
n
g
.
.
.

Thrust Bearings/Bearings

51310

Thrust Ball Bearing

Height T31 mm

Product Features

NSK thrust ball bearing, single-direction 51310 series, model 51310: 50 mm shaft-washer bore, 95 mm housing-washer OD, 31 mm height, flat seat
Basic dynamic load rating Ca 97.5 kN, basic static load rating C0a 202 kN (NSK official catalog CAT. No. E1103d)
Limiting speed approx. 1800 min⁻¹ (grease), 2800 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

Quantity

Quick Inquiry

Call Us Email Us Contact Us About This Product

Product Specifications

Specification	Unit	51310
Series	-	51310 series (single direction, flat seat)
Shaft washer bore d	mm	50
Housing washer OD D	mm	95
Height T	mm	31
Min. chamfer r	mm	1.1
Seat type	-	Flat seat
Basic dynamic load rating Ca	kN	97.5
Basic static load rating C0a	kN	202
Limiting speed (grease)	min⁻¹	1800
Limiting speed (oil)	min⁻¹	2800

Product Description

The 51310 is an NSK thrust ball bearing from the single-direction 51310 series, standard flat-seat type: 50 mm shaft-washer bore, 95 mm housing-washer outer diameter, 31 mm height. Basic dynamic load rating Ca is 97.5 kN and basic static load rating C0a is 202 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.