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

NSK Bearings Tapered Roller Bearings 30307D

Product Overview

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Tapered Roller Bearings/Bearings

30307D

Tapered Roller Bearing

Bore d35 mm
Width T22.75 mm

Product Features

NSK tapered roller bearing (30307 series), model 30307D: 35 mm bore, 80 mm OD, 22.75 mm width
Basic dynamic load rating Cr 76.5 kN, basic static load rating C0r 68 kN (NSK official catalog; current-generation equivalent HR30307DJ, Cr/C0r figures above are taken from that current design)
Limiting speed approx. 4300 min⁻¹ (grease), 6000 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	30307D
Series	-	30307 series
Bore d	mm	35
Outer diameter D	mm	80
Width T	mm	22.75
Min. chamfer r	mm	2
Basic dynamic load rating Cr	kN	76.5
Basic static load rating C0r	kN	68
Limiting speed (grease)	min⁻¹	4300
Limiting speed (oil)	min⁻¹	6000

Product Description

The 30307D is an NSK tapered roller bearing from the 30307 series: 35 mm bore, 80 mm outer diameter, 22.75 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 76.5 kN and basic static load rating C0r is 68 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent HR30307DJ, 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.