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

NSK Bearings Self-Aligning Ball Bearings 1312K

Product Overview

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Self-Aligning Ball Bearings/Bearings

1312K

Self-Aligning Ball Bearing

Bore d60 mm
Width B31 mm

Product Features

NSK self-aligning ball bearing (1312 series), model 1312K: 60 mm bore, 130 mm OD, 31 mm width, tapered bore (K, 1:12 taper)
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	1312K
Series	-	1312 series
Bore d	mm	60
Outer diameter D	mm	130
Width B	mm	31
Min. chamfer r	mm	2.1
Bore type	-	tapered bore (K, 1:12 taper)
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 1312K is an NSK self-aligning ball bearing from the 1312 series: 60 mm bore, 130 mm outer diameter, 31 mm width, tapered bore (K, 1:12 taper). 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.