Product Introduction

TBR linear guide rail (typically referring to TBR circular guide rails) fall within the category of circular linear guide rails. The core structural design of TBR circular guide rails forms an infinite-stroke reciprocating motion mechanism through rolling steel balls between the slider and the guide rail, enabling the load platform to achieve high-precision, smooth linear movement along the track.
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Product Parameters

TBR Model
|
Model |
Wide |
High |
Height of optical axis center |
Thickness |
|
TBR20 |
55 |
19.64 |
29.01 |
8 |
|
TBR25 |
65 |
20 |
31.97 |
10 |
|
TBR30 |
75 |
22.28 |
36.52 |
12 |
Type of screw used in aluminum holder
|
Aluminum model |
Screw type |
|
12,13 |
M4 0.7*16 |
|
16 |
M5 0.8*18 |
|
20 |
M6 1.0*20 |
|
25 |
M6 1.0*22 |
|
30 |
M6 1.0*25 |
|
40 |
M8 1.25*30 |
|
50 |
M10 1.5*45 |
Product Materials
1. Core Shaft of the Guide Rail
High-Carbon Steel
Manufactured from premium tool steel with a carbon content of ≥0.6%, the core shaft achieves high surface hardness (HRC58+), excellent strength, and superior wear resistance through advanced heat treatment. This material ensures outstanding performance in high-load and high-frequency reciprocating motion environments.
Bearing Steel
Produced from special alloy steel commonly used for rolling bearing components (balls, rollers, and rings), this material offers exceptional hardness, fatigue resistance (stable performance under over 10⁶ cyclic loads), and dimensional stability. These properties guarantee the long-term accuracy and reliability of the SBR linear guide rail during continuous operation.
2. Slider Support Structure
High-Strength Aluminum Alloy (e.g., 6061-T6)
Engineered with a lightweight and rigid design, the slider base is made from high-strength aluminum alloy featuring excellent corrosion resistance (salt spray test ≥500 hours) and a yield strength ≥276 MPa. This structure effectively reduces machine load, enhances the dynamic response, and improves the overall efficiency of the linear motion system.
Product Features and Applications
1.Structural Design
- Innovative Flange-type Slider Design
TBR linear guide rail adopt a modular flange-type slider structure, equipped with M6/M8 through-hole mounting threads (tolerance class 6H). It supports bidirectional flexible mounting solutions: top-down (counterbore hidden installation) and bottom-up (blind hole maintenance-free disassembly), adapting to compact equipment space layouts.
- System Compatibility Design
Although the combined height of the slider and guide rail in TBR linear guide rail differs by 5-8mm from the SBR series, they are certified by the ISO 14728 interchangeability standard for linear motion systems. This enables full-stroke seamless replacement with SBR guide rails, reducing equipment retrofit adaptation costs.
- Friction Mechanism Optimization
TBR linear guide rail use a ball infinite-circulation rolling guidance structure. Through a 45° contact angle preload design, the dynamic friction coefficient is reduced to 0.002-0.003 (typical value for sliding guides: 0.1-0.15), improving efficiency by 50 times compared to traditional sliding friction. Paired with the LPS-2 long-acting grease sealing system, it achieves 1,000km maintenance-free operation (working conditions: 20kg load / 0.5m/s speed).
- Automotive Intelligent Manufacturing
TBR linear guide rail provide flexible manufacturing solutions for automotive parts processing. Against the backdrop of the automotive industry's accelerated transformation toward intelligence and flexibility, TBR linear guide rails, centered on precision transmission technology, create end-to-end flexible manufacturing solutions for automotive parts processing scenarios.

2.Application Fields
- General Industrial Equipment
Woodworking Machinery
TBR linear guide rail are specially designed for panel saws, CNC engraving machines, etc. The guide rail surface undergoes special hardening treatment (HV700+), resisting harsh working environments like wood chips and dust to ensure stable plate cutting positioning accuracy and extend equipment maintenance cycles.
Packaging & Printing Machinery
Suitable for high-dynamic scenarios such as labeling machines and die-cutting machines, TBR linear guide rail adopt a pre-tensioned slider structure, achieving ±0.03mm precise positioning under 1.5m/s high-speed reciprocating motion to effectively improve production efficiency.
Textile Machinery
Applied in yarn tension control systems and loom shuttle mechanisms, TBR linear guide rail withstand over 8,000 cycles/hour of high-frequency motion thanks to high-wear-resistant bearing steel and self-lubricating design, significantly reducing maintenance downtime.
- Precision Manufacturing & Automation
Light Industry Automation Production Lines
As conveyor guidance systems and assembly robot slides, TBR linear guide rail are equipped with precision ball circulation devices, supporting medium loads below 50kg and achieving ±0.01mm repeat positioning accuracy to meet precision process requirements like 3C product assembly.
Food Processing Equipment
Suitable for linear motion units in sorters and filling machines, TBR linear guide rail feature hard chrome plating (coating thickness ≥0.02mm) on the surface, complying with FDA food contact material standards. They combine corrosion resistance and easy cleaning to ensure production safety.
Semiconductor Peripheral Equipment
In wafer cleaning machines and chip packaging auxiliary equipment, TBR linear guide rail, paired with dust-proof sliders and low-friction design, enable micro-vibration operation below 0.005g, meeting the strict cleanliness and stability requirements of semiconductor manufacturing environments.
- Professional Field Extensions
Medical Devices
TBR linear guide rail are applied in CT machine slip ring supports, laboratory automation analyzers, etc. With biocompatible material coatings, they ensure smooth, vibration-free operation, providing reliable support for medical image acquisition and sample processing.
New Energy Equipment
Widely used in photovoltaic module production lines and lithium battery module conveying systems, TBR linear guide rail withstand loads over 100kg through high-rigidity guide rail structures and heavy-duty slider designs, ensuring 24-hour continuous stable operation of new energy equipment.

Core Advantages
High Positioning Accuracy
With an exceptionally minimal disparity between dynamic and static friction forces (≤0.05N), our solution completely eliminates slippage, enabling the motion platform to achieve remarkable micron-level repeatability (±1μm). This precision is ideal for high-precision applications such as semiconductor manufacturing and optical inspection, where minute errors can lead to significant consequences.
Long-Term Stability
Thanks to the rolling friction mechanism, the wear on the contact surfaces is dramatically reduced. Rigorous laboratory tests have shown that our product's wear resistance is over 8 times higher than that of traditional sliding guide rails. Even under frequent and intensive use, it can maintain its original accuracy grade for more than 5 years, effectively minimizing equipment maintenance costs and downtime risks.
High Efficiency and Energy Saving
Leveraging innovative friction optimization technology, we've managed to reduce the friction coefficient to an impressively low 0.002, cutting the required driving power by 30% compared to similar products. It excels in high-speed reciprocating motion scenarios, capable of completing over 100 cycles per minute. This translates into significant energy savings, helping large-scale automated production lines reduce electricity bills by more than 20% annually.
High Load Adaptability
Our unique four-directional equal-load design endows the product with outstanding rigidity, allowing it to bear heavy multi-directional loads of up to 1500N, including radial, axial forces, and overturning moments. The built-in automatic alignment system offers a tolerance of ±0.03mm for installation errors, enhancing the installation flexibility and operational reliability of the equipment.
Product Details
TB type support rail standard length and maximum length
|
Model Type |
TB16 |
TB20 |
TB25 |
TB30 |
|
standard length L |
190 |
340 |
250 |
450 |
|
340 |
640 |
450 |
850 |
|
|
640 |
940 |
850 |
1250 |
|
|
940 |
1240 |
1250 |
1450 |
|
|
N |
20 |
20 |
25 |
25 |
|
P |
150 |
150 |
200 |
200 |
|
Maximum length |
6000 |
6000 |
6000 |
6000 |
More than the maximum length can be docked please consult DLY in the form of drawings.


Product Supporting Evidence
In the production and manufacturing process of TBR linear guide rail, our modern factory is equipped with internationally leading production equipment. An experienced technical team strictly adheres to refined production process standards, implementing real-time monitoring and precise adjustment for each production step. Additionally, multiple in-line inspection and final random sampling procedures are in place to ensure that any products with even the slightest defects are prevented from entering the market from the source.

Pricing
Owing to the volatility in steel prices, all prices shown are for reference purposes only.
Prior to placing an order, kindly communicate with our customer service team to confirm the quantity and unit price. We sincerely anticipate building long-term cooperative relationships with you.
Volume discounts are available for large orders. As a direct manufacturer, we provide goods directly from the source. We ensure product quality and adherence to delivery schedules, so you may purchase with full confidence.
Customization Solutions
We provide fully customized solutions throughout the entire process, precisely tailored to meet our customers' specific needs:
- Adjustable Margin Size Design
Precisely control the edge distance to closely fit unique structural layouts.
- Customized Hole Pitch Design
Flexibly optimize the hole spacing to adapt to diverse installation patterns.
- Adjustable Mounting Hole Size Design
Adjustable hole diameter specifications, compatible with different types of fasteners and load condition requirements.
Intimate Service, Worry-free After-sales
- Pre-sales Service
Professional technical consultation
Customized solution design
- In-sales Service
Efficient order processing
Precise logistics distribution
- After-sales Service
24/7 after-sales hotline support
Equipment repair, return, and exchange services
Regular customer follow-up and equipment maintenance

FAQ
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