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

NSK Bearings Tapered Roller Bearings 30306

Product Overview

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Tapered Roller Bearings/Bearings

30306

Tapered Roller Bearing

Bore d30 mm
Width T20.75 mm

Product Features

NSK tapered roller bearing (30306 series), model 30306: 30 mm bore, 72 mm OD, 20.75 mm width
Basic dynamic load rating Cr 73 kN, basic static load rating C0r 60 kN (NSK official catalog; current-generation equivalent HR30306J, Cr/C0r figures above are taken from that current design)
Limiting speed approx. 5300 min⁻¹ (grease), 7500 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	30306
Series	-	30306 series
Bore d	mm	30
Outer diameter D	mm	72
Width T	mm	20.75
Min. chamfer r	mm	1.5
Basic dynamic load rating Cr	kN	73
Basic static load rating C0r	kN	60
Limiting speed (grease)	min⁻¹	5300
Limiting speed (oil)	min⁻¹	7500

Product Description

The 30306 is an NSK tapered roller bearing from the 30306 series: 30 mm bore, 72 mm outer diameter, 20.75 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 73 kN and basic static load rating C0r is 60 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent HR30306J, 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.