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

NSK Bearings Tapered Roller Bearings 30309

Product Overview

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Tapered Roller Bearings/Bearings

30309

Tapered Roller Bearing

Bore d45 mm
Width T27.25 mm

Product Features

NSK tapered roller bearing (30309 series), model 30309: 45 mm bore, 100 mm OD, 27.25 mm width
Basic dynamic load rating Cr 138 kN, basic static load rating C0r 127 kN (NSK official catalog; current-generation equivalent HR30309J, Cr/C0r figures above are taken from that current design)
Limiting speed approx. 3800 min⁻¹ (grease), 5300 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	30309
Series	-	30309 series
Bore d	mm	45
Outer diameter D	mm	100
Width T	mm	27.25
Min. chamfer r	mm	2
Basic dynamic load rating Cr	kN	138
Basic static load rating C0r	kN	127
Limiting speed (grease)	min⁻¹	3800
Limiting speed (oil)	min⁻¹	5300

Product Description

The 30309 is an NSK tapered roller bearing from the 30309 series: 45 mm bore, 100 mm outer diameter, 27.25 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 138 kN and basic static load rating C0r is 127 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent HR30309J, 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.