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

NSK Bearings Angular Contact Thrust Ball Bearings 160 TAC 20D+L

Product Overview

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Angular Contact Thrust Ball Bearings/Bearings

160 TAC 20D+L

Angular Contact Thrust Ball Bearing

NSK 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 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 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.

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 160 TAC 20D+L 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 160 TAC 20D+L to your inquiry list or give us a call, and we'll confirm stock, lead time and quote.

Series Models

Angular Contact Thrust Ball Bearings

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