SX-Outer Ring Split Type

INA High Precision Series SX Crossed Roller Bearings Features and Benefits:

Crossed roller bearing, SX series(INA corresponding to SX series) designed by outer ring split in a circumferential direction and held together by three retaining rings and with no seals,  have normal clearance or are preloaded, are fixed to the adjacent construction using clamping rings, are suitable with normal clearance for circumferential speeds, are preloaded and suitable, with oil lubrication, for circumferential speeds up to 4m/s and for operating temperatures from -30℃ to +80℃.

• An Outer Ring and Inner Ring/Chrome Steel or Stainless Steel
• Steel Balls or Rollers/GrCr15 orGrCr15SiMn、Separators
• NBR Seals
• Tolerance and Clearance Available
• Precision/P0、P2、P4、P5
• Brand/LYNBC、OEM、ODM
• Quality Exchangeable with IKO、INA、THK、TIMKEN

High Precision SX Series Crossed Roller Bearings Introduction

High precision sx series crossed roller bearings are a specialized type of bearing offering exceptional performance in demanding applications. Their high precision, rigidity, load capacity, and compact design make them a preferred choice for robotics, machine tools, medical equipment, and other industries where accuracy and reliability are paramount. When selecting a crossed roller bearing, carefully consider the load requirements, operating environment, and accuracy needs of your specific application. Remember to consult with bearing specialists or manufacturers to choose the optimal bearing for your needs.

Key Features and Benefits

High Precision: SX series bearings are manufactured to extremely tight tolerances, resulting in exceptional rotational accuracy and minimal runout. This is crucial for applications where precise positioning and smooth movement are paramount.

High Rigidity: The crossed roller arrangement provides excellent stiffness in all directions (radial, axial, and moment loads). This resists deformation under load, maintaining accuracy and stability.

High Load Capacity: The large contact area between the rollers and raceways allows for significant load distribution. They can handle substantial radial, axial, and moment loads simultaneously.

Compact Design: Despite their high load capacity, these bearings have a slim profile, making them suitable for applications where space is limited.

Low Friction: Precision grinding and surface finishing minimize friction, contributing to smooth operation, reduced heat generation, and extended service life.

Easy Installation: SX series bearings are often available with pre-drilled mounting holes, simplifying installation.

Variety of Sizes and Configurations: They come in various sizes, materials, and configurations (e.g., with/without cages, sealed/unsealed) to suit diverse application requirements.

Why the Crossed Roller Arrangement is Important

The crossed roller configuration is the key to the performance advantages:

Four-Point Contact: Each roller makes contact with the raceway at four points, providing a stable and well-distributed load transfer. This significantly increases load capacity and rigidity compared to single-row ball bearings.

Effective Load Distribution: The alternating right-angle arrangement distributes loads evenly across all rollers, maximizing the bearing's capacity and minimizing stress concentrations.

Resistance to Moment Loads: This design is particularly well-suited for handling moment loads (tilting forces), which are common in rotary tables, robotic arms, and other applications.

Common Applications

High Precision SX Series Crossed Roller Bearings are used in a wide range of industries and applications where precision and performance are critical:

Robotics: Robot joints, rotary actuators, and precision positioning systems.

Machine Tools: Rotary tables, indexing tables, and spindle supports.

Medical Equipment: CT scanners, MRI machines, and surgical robots.

Semiconductor Manufacturing: Wafer handling equipment, inspection systems, and precision stages.

Aerospace: Guidance systems, actuators, and precision instruments.

Precision Measurement Instruments: Coordinate measuring machines (CMMs) and optical encoders.

Antennas: Satellite and radar tracking systems

Other Applications: Where high precision rotation, positioning, and load handling are necessary.

Materials and Construction

Rings: Typically made from hardened bearing steel (e.g., 52100 steel, SUJ2). The rings are precision ground and heat-treated to achieve the required hardness and dimensional accuracy.

Rollers: Hardened bearing steel, precision ground to ensure uniform size and smooth surface finish.

Cage (Separator): Can be made from various materials, including:

Resin (e.g., Polyamide): Provides low friction, quiet operation, and good resistance to wear.

Brass: Offers high strength and rigidity.

Steel: Provides maximum load capacity and resistance to high temperatures.

Seals (Optional): NBR (Nitrile Butadiene Rubber) or other materials may be used for seals to protect the bearing from contaminants and retain lubricant.

Important Considerations When Selecting an SX Series Bearing

Load Requirements: Determine the radial, axial, and moment loads that the bearing will need to withstand.

Speed Requirements: Consider the operating speed and select a bearing with appropriate lubrication and cage material.

Accuracy Requirements: Specify the required runout, radial clearance, and axial clearance.

Operating Environment: Factor in temperature, exposure to contaminants, and other environmental factors.

Installation Space: Choose a bearing size that fits within the available space.

Lubrication: Select the appropriate lubricant (grease or oil) based on the operating conditions and speed. Proper lubrication is crucial for long bearing life.

Preload: Consider whether preload is necessary to increase rigidity and reduce runout. Preload is the intentional application of a load during installation.