Every GMN high-precision ball bearing results from the highest quality demands – from development to manufacturing. Minimum tolerances in dimensions, form and running precision provide the best performance and long life, and are defined by international (ISO 492) and national (DIN 620) standards. GMN high-precision ball bearings are manufactured to P4andABEC 7 to P2andABEC 9 precision classes or better.
The “Precision classes and tolerances” technical information sheet can be found in our download area.
The “Precision classes and tolerances” technical information sheet can be found in our download area.
The path around which a bearing ring can be moved from one end position to the other without a measurable load is defined as bearing clearance.
Grooved ball bearings without information about bearing clearance are manufactured in CN (normal bearing play).
