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

NSK Bearings Tapered Roller Bearings 30319

Product Overview

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Tapered Roller Bearings/Bearings

30319

Tapered Roller Bearing

NSK Distributor Taiwan

Bore d95 mm
Width T49.5 mm

Product Features

NSK tapered roller bearing (30319 series), model 30319: 95 mm bore, 200 mm OD, 49.5 mm width
Basic dynamic load rating Cr 460 kN, basic static load rating C0r 455 kN (NSK official catalog; current-generation equivalent HR30319J, 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 Description

The 30319 is an NSK tapered roller bearing from the 30319 series: 95 mm bore, 200 mm outer diameter, 49.5 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 460 kN and basic static load rating C0r is 455 kN (NSK official catalog CAT. No. E1103d; current-generation equivalent HR30319J, 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.

Product Specifications

Specification	Unit	30319
Series	-	30319 series
Bore d	mm	95
Outer diameter D	mm	200
Width T	mm	49.5
Min. chamfer r	mm	4
Basic dynamic load rating Cr	kN	460
Basic static load rating C0r	kN	455
Limiting speed (grease)	min⁻¹	1900
Limiting speed (oil)	min⁻¹	2600

FAQ

What's the difference between the Z, ZZ and DDU suffixes?

Z means a single-side steel shield, ZZ means steel shields on both sides, and DDU means contact rubber seals on both sides. Shields suit general environments and high speeds; rubber seals give better dust and water protection with slightly higher friction torque — choose based on your dust exposure and lubrication method.

When should I choose C3 clearance instead of standard clearance?

For motors or other applications with noticeable temperature rise, or high-speed operation, the inner ring expands from heat and reduces the clearance — choose C3 in that case. Standard clearance is fine for general room-temperature, low-speed use. See Nahshon's technical resources for a clearance selection guide.

Is 30319 in stock in Taiwan? What is the lead time?

Nahshon is the NSK distributor in Taiwan and keeps stock of some commonly used items. Add 30319 to your inquiry list or give us a call, and we'll confirm stock, lead time and quote.

Series Models

Tapered Roller Bearings・30319 series

30313 30313D 30314 30314D 30315 30315D 30316 30316D 30317 3031830319（This page）30320 32004X 32005X 32006X 32007X 32008X 32009X 32010X 32011X 32012X

View All Tapered Roller Bearings Models →