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7009 - NTN

7009

Angular contact ball bearing, polyamide cage.

The single row angular contact ball bearing is designed to withstand combined loads with a predominant axial component. Installed in opposition with another bearing of the same type, it guarantees high mounting rigidity.

The NTN-SNR range is available in several variants: 30° or 40° angles, polyamide, pressed steel or solid brass cages, universal pairing available, clearances or preloads, etc.

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Technical datasheet

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Specs

PRODUCT DIMENSIONS

Internal diameter d 45 mm
External diameter D 75 mm
Bearing/Inner ring width(B) 16 mm
Charge load application point a 25,5 mm
Contact angle α 30 °
Min fillet radius rs 1 mm
Min fillet radius r1s 0,6 mm
Radial clearance class CN
Mass 0,282 kg
Brand NTN
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PRODUCT PERFORMANCE

Dynamic load, C 24,7 kN
Static load, C0 17,7 kN
Fatigue limit load, Cu 1,29 kN
Nlim (oil) 13000 tr/min
Nlim (grease) 9500 tr/min
Min operating temperature, Tmin -20 °C
Max operating temperature, Tmax 120 °C
Characteristic cage frequency, FTF 0,437 Hz
Characteristic rolling element frequency, BSF 6,766 Hz
Characteristic outer ring frequency, BPF0 7,429 Hz
Characteristic inner ring frequency, BPFI 9,571 Hz

ABUTMENT

Min shoulder diameter IR da min 50,5 mm
Max shoulder diameter OR Da max 69,5 mm
Max OR shoulder diameter (Db max) 70,5 mm
Maxi fillet radius r1a 0,6 mm
Max shaft & housing fillet radius ra max 1 mm
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