High Precision Thin Section Bearings

Product catalog summary

Company Overview
HQW Precision GmbH, established in 2010, is a leading manufacturer of high-quality bearings, including miniature, deep groove, and angular contact ball bearings with ABEC 7/9 tolerances. The company is renowned for its precision-engineered solutions suitable for extreme environments, with its production facility located in Kürnach, Germany.

Thin Section Bearings
These bearings are designed for applications where space and weight are critical, offering smooth rotation, reduced friction, and high positional accuracy. Key features include flexible installation, excellent running accuracy, high load capacity, low profile design, reliable operation, and quiet running.

Applications

Robotics: Used in robot arms and joints for smooth motion control.
Space: Utilized in satellite systems for weight and size reduction.
Medical Devices: Essential in surgical robots and CT scanners for precise movement.
Automation and Machinery: Applied in assembly machines and conveyors for efficient space use.
Semiconductor Industry: Used in wafer handling systems for manufacturing precision.
Optical Equipment: Found in cameras and telescopes for precise positioning.
Aerospace & Defence: Used in drones and missile guidance systems.
Precision Instruments: Incorporated in measuring devices and electron microscopes.

Bearing Types

Deep Groove Ball Bearings: Versatile, low friction, and robust design.
Angular Contact Ball Bearings: High load ratings, suitable for heavy-duty applications.
4-Point Contact Bearings: High load capacity, suitable for heavy loads and versatile applications.

Design Features

Materials: Standard materials include chrome steel and stainless steel, with high nitrogen steel for extreme environments.
Lubrication: Available with oil or grease, with over 300 lubricant options.
Ball Quality: Typically uses Grade 5 or higher quality balls, with ceramic options for demanding applications.
Optional Closures: Various sealing options to prevent contamination.
Cages: Made from pressed steel, bronze, or phenolic material, with advanced plastics for high performance.

Technical Specifications
The document includes detailed tables of bearing dimensions, load ratings, and types, highlighting the extensive range of products available. Custom designs and special features are offered upon request.

Specifications

Inner Ring Tolerances: The document outlines the deviation of single inner ring width and paired layers, with specific measurements in inches and millimeters.
Outer Ring Tolerances: Similar specifications are provided for the outer ring, detailing the deviation of the outer diameter.
Runout Specifications: Both radial and axial runout tolerances are detailed for assembled bearings, with specific values for different bearing sizes.

Standards and Classifications

The document references ANSI/ABMA 26.2 standards and provides classifications for ABEC 1F, 3F, 5F, and 7F precision classes.
It includes a bearing interchange table for HQW, Kaydon, and Silverthin series, detailing precision classes and material specifications.

Materials

The bearings are made from AISI 52100 Steel and AISI 440C Stainless Steel, with specifications for both inch and metric bearings.

Contact Information

HQW Precision GmbH and HQW Aerospace (UK) Ltd contact details are provided for further inquiries.

Catalog excerpts

High Precision Thin Section Bearings HQW Precision GmbH HQW Aerospace (UK) Ltd

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The HQW Precision Story HQW Precision GmbH is a leading manufacturer of high-quality bearings for a wide range of industrial applications. With a strong focus on precision and performance, we specialize in producing miniature, deep groove, and angular contact ball bearings to ABEC 7/9 tolerances, as well as customized bearing units and bespoke designs. Our products are engineered using high-performance and specialist materials, making them suitable for extreme environment applications. Since our establishment in 2010, we have built a solid reputation for delivering exceptional products that offer...

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Bearing Types Design Features Thin section bearings from HQW are available in three basic types: deep groove, angular contact and 4-point contact. Each type is designed to cater for specific application demands and has distinct features and capabilities. Ring Materials Deep Groove Ball Bearings Can take axial forces in both directions, providing excellent versatility. Low friction ensures smooth and efficient operation. Higher axial play compared to 4-point bearings allows for more flexibility in application. Can take forces in both directions due to the innovative gothic arc raceway design....

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Designation Quality ABEC 1F Ball Material To ANSI / ABMA 26.2 Ring Material Bearing Type Series & Size Standard deep groove ball bearing Four-point-contact ball bearing, contact angle 30° T=thin section. I=inch dimension. section height x width. ball diameter Without seal or shield Seal and shield variants on request Special Features snap retainer for deep groove and four point bearings. * material index Universal duplex pair <<>< Highperformance lubricant window type for angular contact bearings. * material index Lubricant proportion of the existing free volume Coating variants on request */*...

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C-Type Deep Groove X-Type Four Point X Type - Four Point Angular Contact (Pair) Designation Please note current product range is subject to an ongoing expansion. Additional products to be added when available. Contact your Regional Sales Manager for further information.

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Description ABEC 1F ABEC 3F ABEC 5F ABEC 7F Description ABEC 1F ABEC 3F ABEC 5F ABEC 7F Type C = Deep groove ball bearing Type A = Angular contact ball bearing Type X = Four-point contact bearing

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Description ABEC 1F ABEC 3F ABEC 5F ABEC 7F Description ABEC 1F ABEC 3F ABEC 5F ABEC 7F Type C = Deep groove ball bearing Type A = Angular contact ball bearing Type X = Four-point contact bearing

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Bearing Interchange The following tables provide a simplified breakdown of interchangeable bearing types. Use the information below to identify compatible HQW bearings for your application. For additional information regarding suitability of HQW thin section bearings please contact our expert engineering team. Precision Class Inch Bearings, Open HQW Series Kaydon Series Silverthin Series Kaydon type Silverthin type Kaydon type Silverthin type *Material - Rings & Balls AISI 52100 Steel *Material - Rings & Balls : AISI 440C Stainless Steel Metric Bearings, Open Kaydon type Silverthin type Kaydon...

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KS HQW HQW Precision GmbH Wachtelberg 23 97273 Kurnach Germany Phone: +49 (0) 9367 98408-0 Email: [email protected] Web: www.hqw.gmbh HQW Aerospace (UK) Ltd Plymbridge Road, Estover Plymouth PL6 7LH United Kingdom Phone: +44 (0) 1752 735555 Email: [email protected] Web: www.bardenbearings.co.uk All technical data is considered correct at time of printing. No liability can be accepted for any technical alterations, errors or misprints. This publication or parts thereof are protected by copyright and must not be reproduced without permission.

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