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

NSK Bearings Tapered Roller Bearings 30312

Product Overview

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Tapered Roller Bearings/Bearings

30312

Tapered Roller Bearing

Bore d60 mm
Width T33.5 mm

Product Features

NSK tapered roller bearing (30312 series), model 30312: 60 mm bore, 130 mm OD, 33.5 mm width
Basic dynamic load rating Cr 214 kN, basic static load rating C0r 201 kN (NSK official catalog; current-generation equivalent HR30312J, Cr/C0r figures above are taken from that current design)
Limiting speed approx. 3000 min⁻¹ (grease), 4000 min⁻¹ (oil)
Carries combined radial load and axial load in one direction; inner and outer rings are separable for easy mounting and service
Nahshon is NSK's distributor in Taiwan — add the part number to your inquiry list

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Product Specifications

Specification	Unit	30312
Series	-	30312 series
Bore d	mm	60
Outer diameter D	mm	130
Width T	mm	33.5
Min. chamfer r	mm	3
Basic dynamic load rating Cr	kN	214
Basic static load rating C0r	kN	201
Limiting speed (grease)	min⁻¹	3000
Limiting speed (oil)	min⁻¹	4000

Product Description

The 30312 is an NSK tapered roller bearing from the 30312 series: 60 mm bore, 130 mm outer diameter, 33.5 mm width. Tapered roller bearings use a tapered inner ring, rollers and outer raceway so a single bearing carries combined radial load and axial load in one direction; inner and outer rings are separable, giving flexible mounting and clearance adjustment. Basic dynamic load rating Cr is 214 kN and basic static load rating C0r is 201 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent HR30312J, Cr/C0r figures above are taken from that current design).

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.