Needle roller bearings NA0-50X68X20 NTN
NTN

Needle roller bearings NA0-50X68X20

Bearing NTN NA0-50X68X20. Request a quote — worldwide shipping.

Code: NA0-50X68X20
Type Needle roller bearings
Dimensions Ø 45 × 68 × 0 mm
d45Bore Ø (mm)
×
D68Outer Ø (mm)
×
B0Width (mm)
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In stock

Technical specifications

BrandNTN
d - Internal diameter45 mm
D - External diameter68 mm
C - Width of bearing, drawn cup or outer ring20 mm
F - Under roller diameter55 mm
E - Upper roller diameter60 mm
rs - Min fillet radius0,6 mm
Lubrication hole on outer ringNon/No
Lubrication hole on inner ringNon/No
Radial clearance classCN
Precision classP0
Mass0,23 kg
Cr - Dynamic load rating28800000 mN
C0r - Static load rating66500000 mN
N lim - Grease lubrication limit speed28800 °/s
N lim - Oil lubrication limit speed45000 °/s
Tmin - Min operating temperature253,15 °K
Tmax - Max operating temperature393,15 °K
da min - Min shoulder diameter IR54 mm
db - Shoulder diameter IR59,4 mm
Da max - Max shoulder diameter OR64 mm
Db - OR smooth shaft shoulder diameter55,8 mm
ras max - Max shaft & housing fillet radius0,6 mm

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