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In the world of precision machinery, TFL Bearing Company's crossed roller bearings are synonymous with superior performance. Our crossed roller bearings, with their exquisite craftsmanship and reliable quality, provide solid support for a variety of high-end equipment.

TFL Bearing Company has always been committed to quality, and each bearing is rigorously tested and carefully crafted. Choosing TFL Bearing Company's bearings means choosing high efficiency, stability and reliability, which makes your machinery run like a tiger and opens a wonderful chapter in the industrial field!

What Are Crossed Roller Bearings?

Crossed roller bearings are a special type of bearing with a split inner ring and a rotating outer ring, which are usually used as joint bearings in industrial robots due to their special structure. Its rolling elements are generally cylindrical rollers or tapered rollers, which are arranged crosswise on a single raceway.

Types of Crossed Roller Bearings

Cross Cylindrical Roller Bearings: The internal structure of crossed cylindrical roller bearings adopts rollers arranged vertically at 90° to each other, with a spacer keeper or isolation block between rollers, which can prevent the tilting of rollers and mutual grinding between rollers, effectively avoiding the increase of rotating torque. In addition, there is no contact or locking of one side of the rollers;

Also, since the inner and outer rings are divided, the gap can be adjusted, and high-precision rotary motion can be obtained even when preload is applied.

Cross-Taper Roller Bearings: Crossed tapered roller bearings (XRT series) are designed to provide high rotational accuracy and stiffness in a small space, with substantial material cost savings. These bearings are two sets of bearing races and rollers mounted together at right angles to each other in a cross, with adjacent rollers facing in opposite directions, with isolation blocks mounted between the rollers, and with support spacers on the rollers, which allows the two half rows of rollers to fit into the same space. The angular and tapered geometry of the bearing makes the effective span of the bearing several times larger than the actual width of the bearing itself.

Harmonic Reducer Roller Bearings: It is a kind of work with special power transmission and is a supporting bearing for harmonic reducer, so it is also generally known as harmonic reducer or harmonic reducer. But also widely used in space technology, electronic industry, robotics, printing machinery, CNC machine tools and other fields.


Application Areas of Crossed Roller Bearings

Precision rotary indexing tables for machine tools, vertical grinding machines, vertical and horizontal boring machines,  rotary surface grinding machines, large gun and radar rotary tables, hobbing machines,  large radio and optical telescopes, rotary cameras, rotary pivots and continuous casting machines, height-restricted pivot microscope tables, rod centres, rotary steering racks, welding brackets, rotary assembly fixtures, industrial robots, precision rotary tables, medical devices, measuring instruments, IC manufacturing equipment. Measuring instruments, IC manufacturing equipment.

What Are the Advantages of Cross-Roller Bearings?

It has high rotational accuracy, takes up little space, simplifies operation and installation, and can withstand large axial and radial loads.

Is a Cross Roller Bearing Better Than a Ball Bearing?

Crossed roller bearings and ball bearings both have their characteristics and advantages, and the choice of which bearing is better depends on the specific use scenario and needs.

What Are Cross Bearings Used For?

It is widely used in industrial automated robots, work machines, medical facilities, and other applications that require high rigidity, high precision, and high rotational speed.


Blog & article

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  • When Do Motor Bearings Need Preload? Unpacking Axial Pre-tightening 12
    Jun

    When Do Motor Bearings Need Preload? Unpacking Axial Pre-tightening

    Motor Bearing Preload: Eliminating Play for Precision Preload, or axial pre-tightening, is a critical technique for optimizing motor bearing performance. It involves applying a carefully controlled axial force to the bearing during assembly, effectively eliminating internal clearance (play). This isn't about simply tightening things down; it's a deliberate engineering choice that delivers significant benefits. By removing unwanted play, preload dramatically improves running accuracy and positional stability, making the shaft more precise and resistant to deflection. It also enhances stiffness and rigidity, crucial for applications demanding high precision under load. Furthermore, preload reduces noise and vibration by ensuring smooth rolling motion and prevents ball skidding in high-speed scenarios. This technique is especially vital for motors in demanding applications like machine tools, robotics, and high-speed machinery where stability, precision, and quiet operation are paramount.

    Angular contact ball bearings, the difference between angular contact ball bearings and deep groove ball bearings 12
    Jun

    Angular contact ball bearings, the difference between angular contact ball bearings and deep groove ball bearings

    While both angular contact ball bearings and deep groove ball bearings are designed to facilitate rotation, their fundamental difference lies in their load-carrying capabilities and structural design. Deep groove ball bearings are the most common type, recognized for their versatility. They primarily excel at handling radial loads (perpendicular to the shaft) but can also accommodate moderate axial loads (parallel to the shaft) in both directions. Their simple design, with deep, uninterrupted raceways, allows for high speeds and smooth operation. In contrast, angular contact ball bearings are specifically engineered to handle combined radial and axial loads, particularly high axial loads. Their unique design features a "contact angle" between the balls and raceways, which allows them to effectively support axial forces in one direction. For applications requiring two-way axial load support or enhanced rigidity, angular contact ball bearings are often used in "paired" configurations. This makes them ideal for high-precision, high-speed applications where significant axial thrust is present, such as machine tool spindles.

    Mastering Motor Bearing Configurations: Precision Positioning with Paired Angular Contact Ball Bearings 12
    Jun

    Mastering Motor Bearing Configurations: Precision Positioning with Paired Angular Contact Ball Bearings

    The key to achieving precise positioning in motor systems is the clever use of angular contact ball bearings. Designed to accommodate radial and axial loads, these specialized bearings provide exceptional rigidity and minimal runout when precisely matched. This pairing technique is essential for applications that require high precision and stability, ensuring smooth and reliable operation of precision-critical motors.

    Can You Really Tell If Your Bearings Are Healthy Just by Looking at Grease Color? 12
    Jun

    Can You Really Tell If Your Bearings Are Healthy Just by Looking at Grease Color?

    Grease Color: A First Clue, Not a Final Verdict for Bearing Health Can you truly tell if your bearings are healthy just by looking at the color of their grease? Not definitively, but it's a valuable starting point! While a new grease's color is often just a dye for identification, any significant change in its appearance can be a red flag. Darkening might suggest oxidation or contamination from wear particles, while a milky look often points to water ingress. Losing its original vibrancy can signal thermal degradation. However, relying solely on visual inspection is like diagnosing a car engine just by the color of its exhaust – it gives you a clue, but not the full picture. Many issues aren't visible, and some greases change color naturally with use. For a true assessment of your bearing's health, you need more robust methods. Think of grease color as your early warning system, prompting further investigation with methods like laboratory grease analysis, vibration analysis, or temperature monitoring.

    QJ218-N2-Ma Bearing: 90mm X 160mm X 30mm Four-Point Contact Ball Bearings 18
    May

    QJ218-N2-Ma Bearing: 90mm X 160mm X 30mm Four-Point Contact Ball Bearings

    QJ218-N2-MA belongs to a four-point contact ball bearing. It has an inner diameter of 90mm, an outer diameter of 160mm, a thickness of 30mm, a single-row bearing with locating grooves, a solid brass cage and an outer ring guide.

    Introducing the World's 10 Best Linear Guide Brands 17
    May

    Introducing the World's 10 Best Linear Guide Brands

    There are countless brands of linear motions, and it is often difficult to choose when purchasing. Today we will take stock of the characteristics of the world's 10 ten linear motion brands. Understanding these brands will help you make targeted choices.

    What Does a Bad Bearing Sound Like? 15
    May

    What Does a Bad Bearing Sound Like?

    Bearings, as one of the key components of mechanical equipment, their normal operation is critical to the performance and life of the equipment. However, when abnormal sounds occur in bearings, it often signals potential problems and failures. In this essay, we will discuss in depth the causes, effects and coping strategies of abnormal bearing sounds.

    How to Choose China Bearing Supplier 15
    May

    How to Choose China Bearing Supplier

    Our Shandong Tefule Bearing Factory is located in the Bearing Industry Base of Liaocheng, Shandong Province. It is committed to the production and creation of automotive bearings and agricultural machinery bearings.

    ABEC Grading System - The Ultimate Guide 15
    May

    ABEC Grading System - The Ultimate Guide

    The ABEC grading system uses odd numbers - 1, 3, 5, 7, and 9 - as classification levels. The five different grades are listed in descending order of tolerance.

    How to Choose Automotive Ball Bearings – A Comprehensive Guide 15
    May

    How to Choose Automotive Ball Bearings – A Comprehensive Guide

    Automotive bearings, as critical components, play an integral role in the performance and reliability of vehicles.