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

NSK Bearings Tapered Roller Bearings 30303

Product Overview

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Tapered Roller Bearings/Bearings

30303

Tapered Roller Bearing

Bore d17 mm
Width T15.25 mm

Product Features

NSK tapered roller bearing (30303 series), model 30303: 17 mm bore, 47 mm OD, 15.25 mm width
Basic dynamic load rating Cr 36 kN, basic static load rating C0r 26.7 kN (NSK official catalog; current-generation equivalent HR30303J, Cr/C0r figures above are taken from that current design)
Limiting speed approx. 8500 min⁻¹ (grease), 12000 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	30303
Series	-	30303 series
Bore d	mm	17
Outer diameter D	mm	47
Width T	mm	15.25
Min. chamfer r	mm	1
Basic dynamic load rating Cr	kN	36
Basic static load rating C0r	kN	26.7
Limiting speed (grease)	min⁻¹	8500
Limiting speed (oil)	min⁻¹	12000

Product Description

The 30303 is an NSK tapered roller bearing from the 30303 series: 17 mm bore, 47 mm outer diameter, 15.25 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 36 kN and basic static load rating C0r is 26.7 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent HR30303J, 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.