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6904LLB/5K - NTN

6904LLB/5K

Deep groove ball bearing, radial contact, pressed steel cage, non-contact seals on both sides

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 20 mm
External diameter D 37 mm
Bearing/Inner ring width(B) 9 mm
Min fillet radius rs 0,3 mm
Radial clearance class CN
Mass 0,036 kg
Brand NTN
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PRODUCT PERFORMANCE

Dynamic load, C 7,05 kN
Static load, C0 3,7 kN
Fatigue limit load, Cu 0,288 kN
Coefficient f0 14.7
Nlim (grease) 19000 tr/min
Min operating temperature, Tmin -25 °C
Max operating temperature, Tmax 110 °C
Characteristic cage frequency, FTF 0,416 Hz
Characteristic rolling element frequency, BSF 5,817 Hz
Characteristic outer ring frequency, BPF0 4,581 Hz
Characteristic inner ring frequency, BPFI 6,419 Hz

ABUTMENT

Min shoulder diameter IR da min 22 mm
Max shoulder diameter IR da max 24 mm
Max shoulder diameter OR Da max 35 mm
Max shaft & housing fillet radius ra max 0,3 mm
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