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Miniature Ball Bearings with Extended Inner Ring RW1-4zz

Miniature Ball Bearings with Extended Inner Ring RW1-4zz

The RW1-4zz is a miniature ball bearing with an extended inner ring, measuring just 0.078″×0.25″×0.1719″. Made from chrome steel, it’s designed for radial loads and features stainless steel shields for protection.

With a dynamic radial load capacity of 54 lbf, it spins smoothly at speeds up to 67,000 RPM. The ABEC1 tolerance ensures reliable performance, while the MC3 radial clearance offers a balance of precision and durability.

The extended inner ring simplifies installation, and the stainless steel cage enhances longevity. It operates in temperatures from -86°F to 230°F and requires lubrication for optimal performance.

Ideal for small machinery or precision instruments, this lightweight bearing weighs only 0.53g. Compliant with RoHS and REACH standards, it’s a practical choice for various applications.

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Product Parameters

  • Part Number RW1-4zz
  • Brand TFL
  • Interchangeable EZO
  • Bore Dia 0.07813"
  • Bore Dia Tolerance -0.0003" to 0"
  • Outer Dia 0.25"
  • Outer Dia Tolerance -0.0003" to 0"
  • Width 0.1406"
  • Width Tolerance -0.005" to 0"
  • External Diameter On Inner Ring 0.122"
  • Inner Ring Width 0.1719"
  • Ball Qty 7
  • Ball Dia 0.0394"
  • Radial Clearance 0.00008" to 0.0005"
  • System of Measurement Inch
  • Seal Type Shielded
  • Bearing Type Ball
  • For Load Direction Radial
  • Construction Single Row
  • Inner Ring Type Extended
  • Tolerance Class ABEC1
  • Radial Clearance Trade No MC3
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Stainless Steel
  • Shield Material 300 Series Stainless Steel
  • Dynamic Radial Load 54 lbf
  • Static Radial Load 17 lbf
  • Temperature Range -86 to 230 °F
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Max Speed 67000 rpm
  • Weight 0.53 g
  • Price（$） 3.465
Miniature Ball Bearings with Extended Inner Ring RW1-4zz dimension drawing
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Features

Why Choose RW1-4zz Bearing for Precision Tasks?

RW1-4zz Bearing features an extended inner ring, making it ideal for precise radial load applications.
Its shielded design protects against contaminants while maintaining smooth operation.

With a dynamic radial load capacity of 54 lbf, RW1-4zz Bearing handles demanding tasks efficiently.
The chrome steel construction ensures durability, even in high-speed environments.

RW1-4zz Bearing operates within a wide temperature range of -86 to 230°F, suitable for various conditions.
Its stainless steel cage and shields provide added resistance to wear and corrosion.

The ABEC1 tolerance class guarantees consistent performance in precision instruments.
At just 0.53 g, RW1-4zz Bearing is lightweight yet robust for miniature applications.

Application

Common Applications of RW1-4zz Bearing
RW1-4zz Bearing is widely used in small electric motors, such as those found in cooling fans or power tools, where its compact size and shielded design help keep dust out. The extended inner ring also makes it easier to install in tight spaces.

What Makes RW1-4zz Bearing a Preferred Choice?
With its high-speed capability, RW1-4zz Bearing is ideal for precision devices like dental drills or small robotics. The chrome steel construction ensures durability, while the stainless steel cage adds corrosion resistance.

Perfect Fit for Automation: RW1-4zz Bearing
In automated systems like 3D printers, RW1-4zz Bearing provides smooth motion control thanks to its low friction and consistent performance. The ABEC1 tolerance ensures reliable operation in repetitive tasks.

Medical vs Industrial: Where RW1-4zz Bearing Excels
RW1-4zz Bearing works well in medical instruments like handheld scanners due to its lightweight and precise movement. In industrial settings, it’s often chosen for small conveyor rollers or measuring equipment.

How Does RW1-4zz Bearing Support High-Speed Operations?
The shielded design of RW1-4zz Bearing protects against contaminants, making it suitable for high-speed applications like miniature turbines. Its dynamic load capacity also handles rapid movements without compromising performance.

Q&A

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