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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 1307K

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Self-Aligning Ball Bearings/Bearings

1307K

Self-Aligning Ball Bearing (NSK Authorized Distributor, Taiwan)

Bore d35 mm
Width B21 mm

Product Features

NSK self-aligning ball bearing (1307 series), model 1307K: 35 mm bore, 80 mm OD, 21 mm width, tapered bore (K, 1:12 taper)
Basic dynamic load rating Cr 27.8 kN, basic static load rating C0r 7.85 kN (NSK official catalog CAT. No. E1103d)
Limiting speed approx. 7500 min⁻¹ (grease), 9500 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 authorized distributor in Taiwan — add the part number to your inquiry list

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Product Specifications

Specification	Unit	1307K
Series	-	1307 series
Bore d	mm	35
Outer diameter D	mm	80
Width B	mm	21
Min. chamfer r	mm	1.5
Bore type	-	tapered bore (K, 1:12 taper)
Basic dynamic load rating Cr	kN	27.8
Basic static load rating C0r	kN	7.85
Limiting speed (grease)	min⁻¹	7500
Limiting speed (oil)	min⁻¹	9500

Product Description

The 1307K is an NSK self-aligning ball bearing from the 1307 series: 35 mm bore, 80 mm outer diameter, 21 mm width, tapered bore (K, 1:12 taper). Basic dynamic load rating Cr is 27.8 kN and basic static load rating C0r is 7.85 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 authorized distributor in Taiwan and works directly with the factory to confirm specifications, stock and pricing.