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

Product Overview

NSK Bearings Self-Aligning Ball Bearings 1312

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Self-Aligning Ball Bearings/Bearings

1312

Self-Aligning Ball Bearing

Bore d60 mm
Width B31 mm

Product Features

NSK self-aligning ball bearing (1312 series), model 1312: 60 mm bore, 130 mm OD, 31 mm width, cylindrical bore (no K)
Basic dynamic load rating Cr 63.5 kN, basic static load rating C0r 20.8 kN (NSK official catalog CAT. No. E1103d)
Limiting speed approx. 4500 min⁻¹ (grease), 5600 min⁻¹ (oil)
Double-row balls on a spherical outer raceway self-align for shaft misalignment; lower friction and higher speed capability than a spherical roller bearing
Nahshon is NSK's distributor in Taiwan — add the part number to your inquiry list

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Product Specifications

Specification	Unit	1312
Series	-	1312 series
Bore d	mm	60
Outer diameter D	mm	130
Width B	mm	31
Min. chamfer r	mm	2.1
Bore type	-	cylindrical bore (no K)
Basic dynamic load rating Cr	kN	63.5
Basic static load rating C0r	kN	20.8
Limiting speed (grease)	min⁻¹	4500
Limiting speed (oil)	min⁻¹	5600

Product Description

The 1312 is an NSK self-aligning ball bearing from the 1312 series: 60 mm bore, 130 mm outer diameter, 31 mm width, cylindrical bore (no K). Basic dynamic load rating Cr is 63.5 kN and basic static load rating C0r is 20.8 kN (NSK official catalog CAT. No. E1103d). Self-aligning ball bearings use double-row balls on a spherical outer raceway, self-aligning for minor shaft misalignment with lower friction and higher speed capability than a spherical roller bearing, at the cost of lower radial load capacity.

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.