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Inch Size Miniature Flanged Ball Bearings FR4zz

Inch Size Miniature Flanged Ball Bearings FR4zz

The FR4zz is a miniature flanged ball bearing with a 0.25″ bore and 0.625″ outer diameter, made from sturdy chrome steel. It handles radial loads up to 283 lbf and spins smoothly at speeds up to 38,000 RPM.

Its shielded design keeps dirt out while the stainless steel cage ensures durability. The flange adds stability, making it easier to mount in tight spaces.

This bearing works in temperatures from -86°F to 230°F and requires lubrication for optimal performance. Ideal for small motors, medical devices, or precision instruments where space is limited.

Weighing just 4.9g, it’s lightweight yet robust. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number FR4zz
  • Brand TFL
  • System of Measurement Inch
  • Bearing Type Ball
  • For Load Direction Radial
  • Construction Single Row
  • Inner Ring Type Standard
  • Seal Type Shielded
  • Tolerance Class ABEC1
  • Radial Clearance Trade No MC3
  • Radial Clearance 0.00008" to 0.0005"
  • Ball Qty 8
  • Bore Dia 0.25"
  • Bore Dia Tolerance -0.0003" to 0"
  • Outer Dia 0.625"
  • Outer Dia Tolerance -0.0003" to 0"
  • Width 0.196"
  • Width Tolerance -0.005" to 0"
  • Flange Outer Dia 0.69"
  • Flange Thickness 0.042"
  • Ball Dia 0.09370"
  • Ring Material Chrome Steel
  • Ball Material Chrome Steel
  • Cage Material Stainless Steel
  • Dynamic Radial Load 283 lbf
  • Static Radial Load 112 lbf
  • Max Speed 38000 rpm
  • Temperature Range -86 to 230 °F
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Weight 4.9 g
  • Shield Material 300 Series Stainless Steel
  • Price（$） 1.0935
Inch Size Miniature Flanged Ball Bearings FR4zz dimension drawing
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Features

How Does FR4zz Bearing Reduce Friction?

FR4zz Bearing features chrome steel rings and balls, ensuring smooth operation with minimal friction.
The stainless steel cage maintains proper ball alignment, enhancing efficiency and reducing wear.

With a dynamic radial load capacity of 283 lbf, FR4zz Bearing handles demanding applications effortlessly.
Its shielded design protects against contaminants, ensuring consistent performance over time.

FR4zz Bearing operates at speeds up to 38,000 rpm, making it suitable for high-speed machinery.
The precision-engineered flanged design provides secure mounting, reducing vibration and noise.

Application

Common Applications of FR4zz Bearing
FR4zz Bearing is widely used in small electric motors, particularly in appliances like cooling fans and power tools, where its compact size and shielded design keep dust out. The chrome steel construction ensures smooth rotation even with frequent use.

In robotics, FR4zz Bearing fits perfectly in joint mechanisms and lightweight robotic arms, thanks to its flanged design for easy mounting. The ABEC1 tolerance provides reliable precision for repetitive movements.

For office equipment like printers and scanners, FR4zz Bearing’s low noise operation and stainless steel cage make it ideal for quiet environments. Its inch sizing simplifies replacements in older models.

Medical devices such as dental handpieces benefit from FR4zz Bearing’s high-speed capability and temperature resistance. The shielded seals help maintain hygiene by preventing contamination.

In hobbyist projects like RC cars or drones, FR4zz Bearing offers a balance of durability and lightweight performance. The flange ensures secure placement in tight spaces.

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