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

NSK Bearings Tapered Roller Bearings 30305D

Product Overview

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Tapered Roller Bearings/Bearings

30305D

Tapered Roller Bearing

Bore d25 mm
Width T18.25 mm

Product Features

NSK tapered roller bearing (30305 series), model 30305D: 25 mm bore, 62 mm OD, 18.25 mm width
Basic dynamic load rating Cr 47 kN, basic static load rating C0r 40.5 kN (NSK official catalog; current-generation equivalent HR30305DJ, Cr/C0r figures above are taken from that current design)
Limiting speed approx. 5600 min⁻¹ (grease), 8000 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	30305D
Series	-	30305 series
Bore d	mm	25
Outer diameter D	mm	62
Width T	mm	18.25
Min. chamfer r	mm	1.5
Basic dynamic load rating Cr	kN	47
Basic static load rating C0r	kN	40.5
Limiting speed (grease)	min⁻¹	5600
Limiting speed (oil)	min⁻¹	8000

Product Description

The 30305D is an NSK tapered roller bearing from the 30305 series: 25 mm bore, 62 mm outer diameter, 18.25 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 47 kN and basic static load rating C0r is 40.5 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent HR30305DJ, 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.