SMR3121.5 Ceramic Bearing 21.5mm Metric Sealed ABEC-5 Bearings - VXB Ball Bearings
SMR3121.5 Ceramic Bearing 21.5mm Metric Sealed ABEC-5 Bearings - VXB Ball Bearings

VXB

SMR3121.5 Ceramic Bearing 21.5mm Metric Sealed ABEC-5 Bearings

$29.99 $159.99you save $130.00
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SKU: Kit13043
UPC: 00193019211984
Item: SMR3121.5 Ball Bearing
Quality: Premium ABEC-5
Closures: Open
Material: Stainless Steel
Balls: Silicon Nitride Ceramic (Si3N4)
SMR3121.5 Premium ABEC-5 Stainless Steel Ball Bearing
Silicon Nitride Ceramic Balls
21.5 x 31 x 7 mm

SMR3121.5 Premium ABEC-5 Stainless Steel Ball Bearing, bearing is Silicon Nitride ceramic ball.

  • Item: SMR3121.5 Ball Bearing
  • Quality: Premium ABEC-5
  • Closures: Open
  • Material: Stainless Steel
  • Balls: Silicon Nitride Ceramic (Si3N4)
  • Dimensions: 21.5mm x 31mm x 7mm/Metric
  • ID (inner diameter)/Bore: 21.5mm
  • OD (outer diameter): 31mm
  • Width: 7mm
  • Dimensions: 21.5 x 31 x 7 mm
  • Quantity: 1 Bearing

VXB Category: Hybrid ceramic bearings



💡 What Does ABEC-5 Mean?

ABEC-5 is a precision rating from the Annular Bearing Engineers’ Committee (ABEC), indicating that the bearing is manufactured with tighter tolerances for improved accuracy and performance.

Bearings rated ABEC-5 are designed for high-speed, low-friction operation, making them ideal for electric motors, precision tools, 3D printers, and performance equipment where smooth rotation and long service life are essential.

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