NSK Bearing QJ315

Product description of NSK Bearing QJ315

NSK Bearing QJ315,Super Precision Angular Contact Ball Bearings, NSK offers a wide lineup of super precision angular contact ball bearings to provide optimal specifications for your application. Our bearings provide the perfect solution for equipment requiring high running accuracy or high rotational speed, such as the main spindles of machine tools.

NSK Bearing QJ315,Super Precision Angular Contact Ball Bearings, Features Standard bearings that conform to ISO standards and specialized series for machine tools.

Sealed bearings with prepacked grease.
A range of NSKROBUST™ high-performance bearings for both high rigidity and ultra-high speeds.
What are the differences between the various series of super precision angular contact ball bearings? (Standard, NSKROBUST, TAC, BSR, etc.) The various series have internal designs specialized for certain applications.
Generally, we recommend our Standard Series for precision machinery, the NSKROBUST Series for ultra-high speeds, the BSR Series for small shaft diameters, and the TAC Series for high-rigidity when receiving thrust (axial) loads.

How do I select proper super precision angular contact ball bearings for conditions?
First, please match your selection to the relevant standards and boundary dimensions.
Be sure that bearings for the main spindles of machine tools have a suitable amount of grease We recommend filling 10 to 30% of the free internal space of the bearing with grease. If too much grease is used, abnormal heat generation will occur during the initial stage of operation, causing the grease to deteriorate.

NSK Bearing QJ315,Super Precision Angular Contact Ball Bearings,Standard Series High-Precision Angular Contact Ball Bearings NSK's standard super precision angular contact ball bearings conform to ISO standards.

Features
Long-life materials
NSK's Z steel, a long-life bearing steel, is used as a standard material.
Seals for even longer life
Series 70 and 79 offer over 1.5x longer grease life than that of open bearings thanks to the included seals.
Cage options
Two types of cages are available to suit your application
High-Accuracy Angular Contact Ball Bearings (Standard Series)

The high performance standard NSKHPS Series features a high basic dynamic load rating and is suitable for low to medium speed operation and high-load applications. NSK's original material evaluation technology ensures only high purity materials are used in their manufacture, which has the most influence on bearing life. Superior steel materials have led to a 15% extension of rolling fatigue life.

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