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

NSK Bearings Tapered Roller Bearings 30318

Product Overview

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Tapered Roller Bearings/Bearings

30318

Tapered Roller Bearing

Bore d90 mm
Width T46.5 mm

Product Features

NSK tapered roller bearing (30318 series), model 30318: 90 mm bore, 190 mm OD, 46.5 mm width
Basic dynamic load rating Cr 425 kN, basic static load rating C0r 425 kN (NSK official catalog; current-generation equivalent HR30318J, Cr/C0r figures above are taken from that current design)
Limiting speed approx. 1900 min⁻¹ (grease), 2600 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	30318
Series	-	30318 series
Bore d	mm	90
Outer diameter D	mm	190
Width T	mm	46.5
Min. chamfer r	mm	4
Basic dynamic load rating Cr	kN	425
Basic static load rating C0r	kN	425
Limiting speed (grease)	min⁻¹	1900
Limiting speed (oil)	min⁻¹	2600

Product Description

The 30318 is an NSK tapered roller bearing from the 30318 series: 90 mm bore, 190 mm outer diameter, 46.5 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 425 kN and basic static load rating C0r is 425 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent HR30318J, 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.