Designation of GMN high-precision and high-speed ball bearings

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HY	6202	2Z	T9H	P4	C3	DUA 10.15	S1	Fett
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1. Material

2. Bearing type

3. Other performance

X - bearing width - B, wider than for the series of bearings in standard executions
Z - one-sided steel sheet seal, mounted with an expanding ring
2Z - double-sided steel sheet seal, mounted with an expanding ring

4. Basket

J - bearing cage made of steel sheet
T9H - glass fiber reinforced polyamide snap cage, injection molded, ball-guided
TBH - resin-hardened (textolite) snap-on polyamide cage, centered on the inner ring
TA - resin hardened (textolite) solid cage guided on the outer ring
TB - resin-hardened massive cage (textolite) guided on the inner ring
MA - a massive brass cage guided on the outer ring
TN - a massive polyamide ball-guided basket
TBM - massive textolite basket centered on the inner ring

5. Rotation accuracy and accuracy class

- / A1 accuracy class PO according to DIN620 (letter-digit designation is not used) A1 according to ANSI / ABMA
P6 / A3 P6 accuracy class according to DIN 620 (designation available on request)
P5 / A5 accuracy class P5 according to DIN 620, A5 according to ANSI / ABMA standards
P4 / A7 accuracy class P4 according to DIN 620, A7 according to ANSI / ABMA standards
P2 / A9 accuracy class P2 according to DIN 620, A9 according to ANSI / ABMA standards
A7 ABEC7 accuracy class according to ABMA
A9 ABEC9 accuracy class according to ABMA
HG GMN accuracy class (high accuracy)
UP accuracy class according to GMN factory standards (ultra accuracy)

6. Radial bearing play

7. Designation of the bearing arrangement (combinations of bearing units)

8. Marking of the thermal stabilization of the bearing

9. Grease marking

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