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Super Precision Angular Contact Ball Bearings 71902/VA9D1

Super Precision Angular Contact Ball Bearings 71902/VA9D1

The 71902/VA9D1 is a super precision angular contact ball bearing with a compact size of 15mm by 28mm by 7mm, crafted from durable chrome steel. It handles radial loads up to 848 lbf and spins smoothly at speeds up to 95,000 RPM.

With a 25° contact angle and open design, it offers excellent performance in high-speed applications. The phenolic cage ensures quiet operation and long service life.

This bearing is available with preload and can be matched in back-to-back, face-to-face, or tandem arrangements for added versatility. Ideal for precision machinery like spindles or small electric motors.

Weighing just 0.015kg, it’s lightweight yet robust. Compliant with P4 tolerance standards, it ensures reliable performance in temperatures from -30°C to 110°C.

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Product Parameters

  • Part Number 71902/VA9D1
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 15 mm
  • Bore Dia Tolerance -0.004mm to 0
  • Outer Dia 28 mm
  • Outer Dia Tolerance -0.004mm to 0
  • Width 7 mm
  • Width Tolerance -0.2mm to 0
  • Ball Dia 3.969 mm
  • Ball Qty 13
  • Contact Angle 25°
  • Tolerance Class P4
  • System of Measurement Metric
  • Seal Type Open
  • Matched Arrangement No
  • Number Of Bearings In Matched Set 2
  • Universal Matching Bearing Yes, back-to-back (<>), face-to-face (><) or tandem (>>)
  • Preload Available
  • For Load Direction Angular Contact
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Phenolic
  • Dynamic Radial Load 848 lbf
  • Static Radial Load 405 lbf
  • Lubrication Lubricated
  • Temperature Range - 30°C to 110 °C
  • Max Speed 95000 rpm
  • Weight 0.015 kg
Super Precision Angular Contact Ball Bearings 71902/VA9D1 dimension drawing
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Features

Performance Features of 71902/VA9D1 Bearing

71902/VA9D1 Bearing is crafted with chrome steel rings and balls, offering high precision for angular contact applications.
Its 25° contact angle ensures efficient load distribution, enhancing performance in dynamic conditions.

The phenolic cage maintains ball alignment, reducing friction and extending operational life.
With a maximum speed of 95,000 rpm, it delivers reliable performance in high-speed scenarios.

71902/VA9D1 Bearing operates smoothly within a temperature range of -30°C to 110°C.
Its P4 tolerance class guarantees precision, making it suitable for demanding industrial uses.

The open seal design allows for easy lubrication, ensuring consistent performance over time.
Its dynamic radial load capacity of 848 lbf makes it robust for various applications.

Application

Essential Roles of 71902/VA9D1 Bearing
71902/VA9D1 Bearing is commonly used in high-speed machine tools, where its 25° contact angle ensures precise handling of combined radial and axial loads. The open design and phenolic cage make it suitable for applications requiring minimal friction and heat generation.

In robotics, 71902/VA9D1 Bearing supports articulated arms and joints, providing smooth motion control. Its P4 tolerance class guarantees the accuracy needed for repetitive tasks in automated systems.

For medical imaging devices, 71902/VA9D1 Bearing’s chrome steel construction offers durability and reliability. The lubricated design ensures quiet operation, which is essential in sensitive diagnostic equipment.

Where Is 71902/VA9D1 Bearing Used?
You’ll often find 71902/VA9D1 Bearing in precision spindles for grinding machines, where its high-speed capability and low heat buildup are key. The metric sizing makes it a versatile choice for European and Asian machinery.

In automotive applications, 71902/VA9D1 Bearing is ideal for electric motor shafts, thanks to its ability to handle both radial and angular loads. The preload option further enhances its stability in dynamic conditions.

Built for Heavy-Duty Use: 71902/VA9D1 Bearing
71902/VA9D1 Bearing excels in industrial pumps, where its phenolic cage resists corrosion from fluids. The chrome steel balls and rings ensure long service life even in demanding environments.

For 3D printers, 71902/VA9D1 Bearing provides the precision needed for accurate layer deposition. Its lightweight design and high-speed performance make it a reliable choice for additive manufacturing.

Q&A

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