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

NSK Bearings Thrust Bearings 51108

Product Overview

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Thrust Bearings/Bearings

51108

Thrust Ball Bearing

Height T13 mm

Product Features

NSK thrust ball bearing, single-direction 51108 series, model 51108: 40 mm shaft-washer bore, 60 mm housing-washer OD, 13 mm height, flat seat
Basic dynamic load rating Ca 27.1 kN, basic static load rating C0a 63 kN (NSK official catalog CAT. No. E1103d)
Limiting speed approx. 3600 min⁻¹ (grease), 5300 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	51108
Series	-	51108 series (single direction, flat seat)
Shaft washer bore d	mm	40
Housing washer OD D	mm	60
Height T	mm	13
Min. chamfer r	mm	0.6
Seat type	-	Flat seat
Basic dynamic load rating Ca	kN	27.1
Basic static load rating C0a	kN	63
Limiting speed (grease)	min⁻¹	3600
Limiting speed (oil)	min⁻¹	5300

Product Description

The 51108 is an NSK thrust ball bearing from the single-direction 51108 series, standard flat-seat type: 40 mm shaft-washer bore, 60 mm housing-washer outer diameter, 13 mm height. Basic dynamic load rating Ca is 27.1 kN and basic static load rating C0a is 63 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.