Wheels Manufacturing CERAMIC Bearings 1/4"

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Wheels Manufacturing CERAMIC LOOSE BALL BEARINGS 1/4" - 25/Tub

ABEC1 - Grade 5 ceramic sealed bearings.

Ceramic bearings are lighter, harder, more spherical, longer lasting, and have less rolling resistance than steel bearings. Wondering what bearings you need to replace your existing balls? You have a couple of choices: a) disassemble your system and use a micrometer on the bearing. b) give your product manufacturer a call or email asking them for bearing sizes.

All dimensions are in inches.

*Ball Bearing Grade Guide*

• Grade is a measurement of a ball bearing's deviation from true spherical form.
• Grade 25 is .00025 inches out of round and A Grade 300 is .003 inches out of round.
• The average human hair is .003 inches thick.
• The lower the grade number, the more spherical a bearing is.
• These are Grade 5.
• Should be installed by a professional technician