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Inch Size Miniature Ball Bearings R1-4zz

Inch Size Miniature Ball Bearings R1-4zz

The R1-4zz is a compact radial ball bearing with a 0.07813″ bore and 0.25″ outer diameter, crafted from sturdy chrome steel. It supports radial loads up to 54 lbf and spins smoothly at speeds up to 67,000 RPM.

Its shielded design keeps dust out while the stainless steel cage ensures durability. The bearing operates in temperatures from -86°F to 230°F and requires regular lubrication for optimal performance.

With ABEC1 tolerance and MC3 radial clearance, it offers reliable precision for small-scale applications. Ideal for miniature machinery, hobby projects, or delicate instruments where space is limited.

Weighing just 0.53g, it’s lightweight yet robust. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number R1-4zz
  • 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 7
  • 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"
  • Ball Dia 0.03941"
  • 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
  • Max Speed 67000 rpm
  • Temperature Range -86 to 230 °F
  • Lubrication Required
  • RoHS Compliant
  • REACH Compliant
  • Weight 0.53 g
  • Price（$） 1.755
Inch Size Miniature Ball Bearings R1-4zz dimension drawing
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Features

Why Choose R1-4zz Bearing for Precision Tasks?

R1-4zz Bearing features a shielded design with stainless steel shields, protecting against contaminants while maintaining smooth operation.
Its chrome steel construction ensures durability and resistance to wear in radial load applications.

With a dynamic radial load capacity of 54 lbf, R1-4zz Bearing handles precise movements efficiently.
The ABEC1 tolerance class guarantees consistent performance for miniature applications.

R1-4zz Bearing operates in temperatures from -86 to 230 °F, making it versatile for various environments.
Its lightweight design at just 0.53 g ensures minimal impact on overall system weight.

Application

Common Applications of R1-4zz Bearing
R1-4zz Bearing is a great fit for small-scale machinery, especially in devices like dental drills or optical equipment where compact size matters. Its shielded design helps keep out dust while maintaining smooth rotation.

In automation setups, R1-4zz Bearing works well in robotic joints or miniature conveyor guides due to its precise radial load handling. The ABEC1 tolerance ensures consistent performance without overcomplicating the design.

For hobbyist projects, R1-4zz Bearing’s inch sizing makes it handy for custom-built gadgets like RC cars or small drones. The stainless steel cage adds durability without adding noticeable weight.

You’ll often spot R1-4zz Bearing in office equipment too, particularly in printer rollers or scanner mechanisms where quiet operation is key. The chrome steel construction handles daily wear nicely.

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