HR Series Roller Linear Guides: Ultra-High Rigidity + Ultra-Heavy Load, Unlocking A New Experience in Precision Transmission

Sep 22, 2025

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I. Core Advantages, Leading the Industry with Strength

1. Ultra-Heavy Load Capacity, Outstanding Performance

The HR series linear guides adopt roller-type rolling elements instead of traditional steel balls. Through the line contact between the rolling elements, guides, and sliders-compared to the point contact of ball-type systems-they achieve lower elastic deformation under the same load. With the same outer diameter, their load capacity is significantly higher. These characteristics of high rigidity and high load make them perfectly suited for high-precision applications in heavy-load machining.

 

2. Optimized Four-Directional Load Capacity, Adaptable to Multiple Scenarios

Using Finite Element Method (FEM) for structural stress analysis, the series features a four-row roller design with a 45° contact angle and a high-rigidity cross-sectional structure. This enables enhanced load capacity in four directions: radial, reverse radial, and lateral. Rigidity can also be improved through preload adjustment, allowing flexible adaptation to various installation methods and equipment requirements.

 

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II. Precise Selection for Accurate Matching

1. Precision Grades

Four precision grades are available: High, Precision, Ultra-Precision, and Super Ultra-Precision. Customers can select the appropriate grade based on their equipment's precision needs, covering scenarios from general to extremely high-precision applications.

 

2. Preload Grades

Preload enhances guideway rigidity and eliminates clearance. The HR series offers three standard preload options:

Preload Grade

Mark

Preload Force

Application Scope

Light Preload

Z0

0.02C - 0.04C

Scenarios with fixed load direction, minimal impact, and low precision requirements

Medium Preload

ZA

0.07C - 0.09C

Applications requiring rigidity, light load, and high precision

Heavy Preload

ZB

0.12C - 0.14C

Environments with high rigidity demands, vibration, and impact

Note: In preload force, "C" refers to the dynamic rated load. Rigidity, friction resistance, and service life vary under different preloads. For small-sized models, it is recommended to use medium preload or lower to avoid affecting service life.

 

3. Product Specifications

Two types are available: non-interchangeable and interchangeable, with identical dimensional specifications. Interchangeable sliders and guides can be replaced individually for high convenience; while their combined precision is slightly lower than the ultra-precision grade of non-interchangeable types, it still reaches a high level, making them suitable for customers who do not require paired installation. Product models clearly indicate dimensions, type, precision grade, and preload, facilitating confirmation between both parties during ordering.

 

III. Slider Types for Flexible Adaptation

The HR series offers two linear guideway types: flange-type and square-type:

Flange-type slider: Features mounting screw holes on the flange, supporting bottom-locking installation. It has a low combined height with the guideway and a large bearing area, ideal for locations requiring moment load resistance.

Square-type slider: With a smaller width, it fits equipment with limited installation space. The mounting screw holes on the top of the slider allow for easy installation.

Different specifications (e.g., HRH-CA/HA, HRL-CA/HA, HRW-CC/HC) vary in height dimensions and guideway lengths, covering a wide range of applications such as automation equipment, heavy-duty handling equipment, and CNC machining centers.

 

IV. Easy Installation, Thoughtful Details

In addition to conventional top-locking bolt hole guides, bottom-locking bolt hole guides are available. This allows customers to choose based on actual installation needs, enhancing flexibility and convenience during installation.

 

V. Cooperation Invitation, Embarking on a New Journey

With advantages such as ultra-high rigidity, ultra-heavy load capacity, and flexible selection, the HR series roller linear guides provide a new transmission solution for high-speed automated industrial machinery and equipment requiring high rigidity. For inquiries about specific model compatibility, pricing, or cooperation, please contact us at any time! Our professional team will provide customized solutions to help upgrade your equipment performance.

 

Contact Information
Phone / WhatsApp: +86-13157809616
Email: jsmtransmission@163.com
Address: Workshop 3, No. 795 Nanming Road, Shuige Industrial Park, Liandu District, Lishui City, Zhejiang Province

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