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Inch Size Miniature Flanged Ball Bearings FR4

Inch Size Miniature Flanged Ball Bearings FR4

The FR4 is a compact flanged ball bearing with a 0.25″ bore and 0.625″ outer diameter, crafted from sturdy chrome steel. It supports radial loads up to 283 lbf and spins smoothly at speeds up to 38,000 RPM.

Its open design simplifies lubrication, while the stainless steel cage ensures durability. The flange adds stability, making it easier to mount securely in tight spaces.

With a temperature range of -86°F to 230°F, it suits various environments. Ideal for small machinery or instruments where space is limited but performance matters.

Weighing just 4.82g, it’s lightweight yet robust. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number FR4
  • Brand TFL
  • System of Measurement Inch
  • Bearing Type Ball
  • For Load Direction Radial
  • Construction Single Row
  • Inner Ring Type Standard
  • Seal Type Open
  • 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 4.82 g
  • Price（$） 1.0935
Inch Size Miniature Flanged Ball Bearings FR4 dimension drawing
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Features

How Does FR4 Bearing Reduce Friction?

FR4 Bearing features a precision-engineered chrome steel construction, ensuring smooth radial load handling.
Its single-row design with eight balls minimises friction, enhancing operational efficiency.

The ABEC1 tolerance class guarantees consistent performance in miniature applications.
With a maximum speed of 38,000 rpm, it balances speed and durability effortlessly.

FR4 Bearing operates in temperatures from -86 to 230°F, making it versatile for various environments.
The stainless steel cage maintains ball alignment, reducing wear over time.

Application

Common Applications of FR4 Bearing
FR4 Bearing is widely used in small electric motors, where its compact size and flanged design help maintain alignment in tight spaces. The open seal allows for easy lubrication, ensuring smooth operation in continuous-use devices.

In automation systems, FR4 Bearing supports precise movements in components like robotic arms and 3D printers. Its inch sizing makes it compatible with many North American machinery standards, offering flexibility in design.

For consumer electronics, FR4 Bearing’s lightweight construction is ideal for devices like cooling fans and small printers. The chrome steel rings provide durability, while the stainless steel cage reduces wear over time.

Medical instruments also benefit from FR4 Bearing’s reliability, particularly in handheld devices where low friction is essential. The ABEC1 tolerance ensures consistent performance in sensitive applications.

Q&A

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