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

NSK Bearings Tapered Roller Bearings 30305

Product Overview

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Tapered Roller Bearings/Bearings

30305

Tapered Roller Bearing

Bore d25 mm
Width T18.25 mm

Product Features

NSK tapered roller bearing (30305 series), model 30305: 25 mm bore, 62 mm OD, 18.25 mm width
Basic dynamic load rating Cr 58.5 kN, basic static load rating C0r 46 kN (NSK official catalog; current-generation equivalent HR30305J, Cr/C0r figures above are taken from that current design)
Limiting speed approx. 6300 min⁻¹ (grease), 8500 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	30305
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	58.5
Basic static load rating C0r	kN	46
Limiting speed (grease)	min⁻¹	6300
Limiting speed (oil)	min⁻¹	8500

Product Description

The 30305 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 58.5 kN and basic static load rating C0r is 46 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent HR30305J, 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.