Angular Contact Ball Bearings Premium Angular Contact Ball Bearings for Industrial Applications 220tac20d 240tac29d+L 240tac20d+L 260tac29d+L 260tac20d+L

• Customization: Available
• Contact Angle: 15°
• Aligning: Aligning Bearing
• Model NO.: 220TAC20D 240TAC29D+L 240TAC20D+L 260TAC29D+L 260T
• Separated: Unseparated
• Rows Number: Multiple
• Load Direction: Radial Bearing
• Material: Bearing Steel
• Transport Package: Custom Packaging
• Specification: 25mmX52mmX15mm
• Trademark: JD Bearing
• Origin: China
• HS Code: 8482103000
• Production Capacity: 40000
• Package Size: 800.00cm * 800.00cm * 1000.00cm
• Package Gross Weight: 100.000kg

Product Description

Bearing Model	Bore Diameter (d) [mm]	Outer Diameter (D) [mm]	Width (B) [mm]	Weight [kg]
220TAC20D	220	310	51	10.50
240TAC29D+L	240	340	56	13.50
240TAC20D+L	240	340	56	13.50
260TAC29D+L	260	370	62	16.50
260TAC20D+L	260	370	62	16.50

Structure and Features

• Structure:

  • Angular contact ball bearings consist of an inner ring, outer ring, rolling elements (steel balls), and a cage.

  • The raceways of the inner and outer rings are designed at a specific angle (contact angle), enabling the bearing to withstand both axial and radial loads.

  • The contact angle is typically 15°, 25°, 30°, or 40°. A larger contact angle provides greater axial load capacity.

• Features:

  • High-speed capability: The compact design and low friction make angular contact ball bearings suitable for high-speed operation.

  • High precision: Commonly used in precision machinery, such as machine tool spindles and robotics.

  • Combined load capacity: Can withstand both radial and axial loads simultaneously.

  • Paired use: Can be mounted in pairs (back-to-back, face-to-face, or tandem) to handle bidirectional axial loads or higher radial loads.

 

Types

Based on design and application requirements, angular contact ball bearings can be categorized into the following types:

• Single-row angular contact ball bearings:

  • Can only withstand unidirectional axial loads.

  • Typically require paired installation to handle bidirectional loads.

• Double-row angular contact ball bearings:

  • Equivalent to a combination of two single-row bearings, capable of withstanding bidirectional axial loads.

  • More compact design, suitable for applications with limited radial space.

• Four-point contact ball bearings:

  • Can withstand bidirectional axial loads.

  • Ideal for applications with high axial loads and requiring high rigidity.

• High-speed angular contact ball bearings:

  • Use ceramic balls or special cage designs, suitable for ultra-high-speed applications.

Applications

Angular contact ball bearings are widely used in the following fields:

• Machine tools: Used in high-precision, high-speed components such as spindles and lead screws.

• Automotive: Used in wheel hubs, gearboxes, and differentials.

• Aerospace: Used in high-precision, high-reliability components such as engines and landing gear.

• Robotics: Used in joints and rotating components.

• Electric motors: Used in high-speed motors and generators.

 

Selection and Installation

• Selection Considerations:

  • Choose the contact angle based on load direction: A larger contact angle is suitable for higher axial loads, while a smaller contact angle is better for higher radial loads.

  • Select the bearing type based on speed: High-speed applications require high-speed angular contact ball bearings or ceramic ball bearings.

  • Choose single-row or double-row bearings based on installation space.

• Installation Notes:

  • Angular contact ball bearings are often installed in pairs to ensure bidirectional load capacity.

  • Pay attention to the bearing orientation during installation to ensure the load acts on the correct contact angle.

  • Use dedicated tools for installation to avoid direct hammering on the bearing.

Advantages and Limitations

• Advantages:

  • High-speed capability.

  • High precision and rigidity.

  • Combined load capacity.

  • Compact design, saving space.

• Limitations:

  • Single-row bearings can only withstand unidirectional axial loads.

  • Installation and adjustment are relatively complex, requiring expertise and specialized

Maintenance and Care

• Regularly inspect the lubrication condition to ensure sufficient and clean lubricant.

• Avoid overloading or impact loads to prevent bearing damage.

• For high-speed or high-temperature applications, choose high-temperature lubricants or special material bearings.

 

 

Angular contact ball bearings are an important type of rolling bearings. The following is the main content about them: Structure Inner ring: It is installed in cooperation with the shaft. The raceway of the inner ring comes into contact with the rolling elements. Its inner diameter is adapted to the diameter of the shaft to ensure a tight connection with the shaft, enabling the rotational motion of the shaft to be accurately transmitted to the bearing. At the same time, it bears part of the radial and axial loads. Outer ring: Usually installed in the hole of the bearing seat or relevant components, its raceway, together with the raceway of the inner ring, provides a rolling space for the rolling elements. The outer diameter of the outer ring matches the size of the mounting hole, which is used to support the bearing and transmit the load to the mounting components. It can also bear radial and axial loads. Rolling elements: Generally, they are high-precision steel balls located between the raceways of the inner and outer rings. When the bearing is in operation, the steel balls roll on the raceways of the inner and outer rings, achieving the relative rotation between the inner and outer rings. At the same time, they transmit the load from the inner ring to the outer ring. And due to the characteristic of angular contact, they can bear the load in a certain angular direction. Cage: Its function is to evenly separate the rolling elements to prevent collisions and friction between them, ensuring that each rolling element is evenly stressed. It also guides the rolling elements to roll correctly in the raceways, making the operation of the bearing stable. Common materials include metals and engineering plastics, etc. Characteristics Advantages Can bear combined loads: It can bear both radial loads and axial loads simultaneously. And according to the different contact angles, it can adapt to the combination of these two types of loads to varying degrees, which is suitable for working conditions with complex load directions, such as machine tool spindles and automotive transmissions. High precision: With relatively high manufacturing precision, it can ensure the rotational accuracy of the bearing during operation, reduce vibration and noise, and help improve the stability of the equipment and the machining accuracy. High limiting speed: With a reasonable structural design, the friction between the rolling elements and the raceways is small. It can maintain good stability and reliability during high-speed rotation, which can meet the requirements of some equipment with high speed requirements, such as high-speed motors and aero engines.