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68/500 - NTN

68/500

The single row deep-groove ball bearing is the most popular bearing. It is available in a wide range of sizes with several possible options: sealing with shields or seals, presence of a retaining ring, varied clearances, several cage types, etc.

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Technical datasheet

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Specs

PRODUCT DIMENSIONS

Internal diameter d 500 mm
External diameter D 620 mm
Bearing/Inner ring width(B) 56 mm
Min fillet radius rs 3 mm
Radial clearance class CN
Mass 37,5 kg
Brand NTN
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PRODUCT PERFORMANCE

Dynamic load, C 360 kN
Static load, C0 560 kN
Fatigue limit load, Cu 15,7 kN
Coefficient f0 16.1
Nlim (oil) 970 tr/min
Nlim (grease) 820 tr/min
Min operating temperature, Tmin -40 °C
Max operating temperature, Tmax 120 °C
Characteristic cage frequency, FTF 0,466 Hz
Characteristic rolling element frequency, BSF 14,63 Hz
Characteristic outer ring frequency, BPF0 11,184 Hz
Characteristic inner ring frequency, BPFI 12,816 Hz

ABUTMENT

Min shoulder diameter IR da min 513 mm
Max shoulder diameter OR Da max 607 mm
Max shaft & housing fillet radius ra max 2,5 mm
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