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

NSK Bearings Tapered Roller Bearings 30310D

Product Overview

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Tapered Roller Bearings/Bearings

30310D

Tapered Roller Bearing

Bore d50 mm
Width T29.25 mm

Product Features

NSK tapered roller bearing (30310 series), model 30310D: 50 mm bore, 110 mm OD, 29.25 mm width
Basic dynamic load rating Cr 141 kN, basic static load rating C0r 132 kN (NSK official catalog; current-generation equivalent HR30310DJ, Cr/C0r figures above are taken from that current design)
Limiting speed approx. 3200 min⁻¹ (grease), 4300 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	30310D
Series	-	30310 series
Bore d	mm	50
Outer diameter D	mm	110
Width T	mm	29.25
Min. chamfer r	mm	2.5
Basic dynamic load rating Cr	kN	141
Basic static load rating C0r	kN	132
Limiting speed (grease)	min⁻¹	3200
Limiting speed (oil)	min⁻¹	4300

Product Description

The 30310D is an NSK tapered roller bearing from the 30310 series: 50 mm bore, 110 mm outer diameter, 29.25 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 141 kN and basic static load rating C0r is 132 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent HR30310DJ, 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.