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NACHI America
Ball Screw Support Bearings

Ball Screw Support Bearings

Product catalog summary

Introduction
The NACHI "Quest" brand represents the pursuit of high performance and reliability in industrial machinery bearings, focusing on rigidity, durability, quietness, and environmental sustainability.

Specifications
NACHI's Ball Screw Support Bearings are designed for high precision and performance, ideal for machine tools and robotics. They offer high axial rigidity, a compact design, high capacity, low noise, and energy efficiency.

Features and Performance

High Axial Rigidity: Enhanced rigidity with more balls and a polyamide cage.
Simple and Compact Design: 60° contact angles for handling thrust and radial loads simultaneously.
High Capacity and Low Noise: Large balls and high-performance grease reduce noise and increase capacity.
Seal Types: Available in contact and non-contact designs for various applications.
Compatibility: Compatible dimensions for easy interchangeability with existing bearings.
Pre-Packaged Grease: Pre-packed with grease, eliminating the need for additional lubrication.
Energy Saving: Low starting and running torque reduces power loss.
Easy Assembly: Initial preloading simplifies assembly by eliminating complex adjustments.

Test Results
Tests indicate a 30% reduction in running torque and a 50% decrease in temperature increase for contact type seals compared to external oil seals. Non-contact seals provide similar water resistance to external oil seals.

Dimensional and Load Specifications
Detailed tables provide dimensions, load ratings, and tolerances for various bearing types, including sealed, non-contact, and open types, along with preload and axial spring constant data.

Contact Information
Contact details for NACHI offices worldwide are provided, including locations in the USA, Canada, Mexico, Europe, and Asia.

Catalog excerpts

Ball Screw Support Bearings

Open the catalog to page 1

ÑACHI High Precision and High Rigidity Ball Screw Support Bearings have the ability to achieve high precision and high performance on your applications NACHI Ball Screw Support Bearings have been improved to exceed new industrial demands for high precision and high speed requirements. NACHI TAB type ball screw support bearings support precision actuators in a wide range of applications such as machine tools, precision measuring equipment, and robot technologies. High Axial Rigidity Greater number of balls with polyamide cage achieves significantly increased rigidity compared with conventional...

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Tolerances for Inner Ring Note (1 ) These deviations are for single bearing. For combination bearings, multiply these values by row number Tolerances for Outer Ring Shaft and Housing Tolerance ©For the fit, refer to the following table. ©For the squareness of a shoulder, refer to the following table. Preload and Axial Spring Constant Basic Dynamic Load Rating Duplex Sets I Triplex Sets ring (Single) (Seals are outside only for combination bearings)

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The new ÑACHI brand "Quest" in Japanese means "Tankyu (in pursuit)" of high performance and reliability. A brand new high performance bearing by NACHI for industrial machinery use. Concentration of material, machining, and lubrication technology of NACHI-Fujikoshi, NACHI offers world's top class quality meeting all demands in bearing like rigidity, durability, quietness and environmental burden. NACHI-FUJIKOSHI CORP. Main Office: Shiodome Sumitomo Bldg. 17F, 1-9-2 Higashi-Shinbashi, Minato-ku, Tokyo 105-0021, JAPAN Overseas Sales Companies_ NACHI AMERICA INC. HEADQUARTERS 17500 Twenty-Three Mile...

Open the catalog to page 5

Ball Screw Support Bearings

Ball Screw Support Bearings

Catalog excerpts

All NACHI America catalogs and technical brochures