Needle roller bearings NA4909LL/3AS NTN
NTN

Needle roller bearings NA4909LL/3AS

Bearing NTN NA4909LL/3AS, Ø45×68×23 mm. Request a quote — worldwide shipping.

Code: NA4909LL/3AS
Type Needle roller bearings
Dimensions Ø 45 × 68 × 23 mm
d45Bore Ø (mm)
×
D68Outer Ø (mm)
×
B23Width (mm)
All bearings 45×68×23 mm Compare all brands with this size
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In stock

Technical specifications

BrandNTN
d - Internal diameter45 mm
D - External diameter68 mm
B - Bearing/Inner ring width23 mm
C - Width of bearing, drawn cup or outer ring22 mm
F - Under roller diameter52 mm
rs - Min fillet radius0,6 mm
Lubrication hole on outer ringOui/Yes
k - Hole diameter3 mm
Lubrication hole on inner ringOui/Yes
Radial clearance classCN
Precision classP0
Mass0,29 kg
Cr - Dynamic load rating28600000 mN
C0r - Static load rating57000000 mN
N lim - Grease lubrication limit speed22800 °/s
Tmin - Min operating temperature253,15 °K
Tmax - Max operating temperature373,15 °K
da min - Min shoulder diameter IR49 mm
Da max - Max shoulder diameter OR55 mm
Db max - Max OR shoulder diameter64 mm
ras max - Max shaft & housing fillet radius0,6 mm

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NTN NA4909LL/3AS