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

Product Overview

NSK Bearings Angular Contact Thrust Ball Bearings 25 TAC 62B

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Angular Contact Thrust Ball Bearings/Bearings

25 TAC 62B

Angular Contact Thrust Ball Bearing (NSK Authorized Distributor, Taiwan)

Product Features

NSK TAC series precision angular contact thrust ball bearings are designed for ball screw support ends, balancing high axial rigidity with positioning accuracy
The 60° contact angle carries high axial load plus limited radial load; in practice two or more bearings are typically combined (DB/DT/DF arrangement) with applied preload
Precision grade P4/P5, commonly used in machine tool feed axes, semiconductor equipment, and precision positioning stages at the ball screw support end
This series is often supplied as custom preloaded sets — Nahshon, NSK's authorized distributor in Taiwan, recommends providing the existing part number or application requirements for a quote

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Product Description

This category covers NSK angular contact thrust ball bearings (TAC series), a precision bearing series for ball screw support ends — part numbers such as "40 TAC 90B" listed on this site belong to this series. With a 60° contact angle, these bearings carry high axial load plus limited radial load, balancing high axial rigidity with positioning accuracy; in practice two or more are typically combined (DB/DT/DF arrangement) with applied preload. Precision grade P4/P5, commonly used in machine tool feed axes, semiconductor equipment, and precision positioning stages at the ball screw support end.

This series is often supplied as custom preloaded sets tailored to the application. Nahshon, NSK's authorized distributor in Taiwan, recommends providing the existing part number or application requirements (axial rigidity, speed, preload class, etc.) so we can confirm the corresponding spec and quote with the factory; sourcing support is also available for discontinued models.