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

NSK Bearings Thrust Bearings 51216

Product Overview

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Thrust Bearings/Bearings

51216

Thrust Ball Bearing

Height T28 mm

Product Features

NSK thrust ball bearing, single-direction 51216 series, model 51216: 80 mm shaft-washer bore, 115 mm housing-washer OD, 28 mm height, flat seat
Basic dynamic load rating Ca 79 kN, basic static load rating C0a 218 kN (NSK official catalog CAT. No. E1103d)
Limiting speed approx. 1800 min⁻¹ (grease), 2600 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	51216
Series	-	51216 series (single direction, flat seat)
Shaft washer bore d	mm	80
Housing washer OD D	mm	115
Height T	mm	28
Min. chamfer r	mm	1
Seat type	-	Flat seat
Basic dynamic load rating Ca	kN	79
Basic static load rating C0a	kN	218
Limiting speed (grease)	min⁻¹	1800
Limiting speed (oil)	min⁻¹	2600

Product Description

The 51216 is an NSK thrust ball bearing from the single-direction 51216 series, standard flat-seat type: 80 mm shaft-washer bore, 115 mm housing-washer outer diameter, 28 mm height. Basic dynamic load rating Ca is 79 kN and basic static load rating C0a is 218 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.