NA4911R Needle Roller Bearing 55x80x25mm - Industrial Bearings Solutions

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NA4911R Needle Roller Bearing 55x80x25mm image

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NA4911R Needle Roller Bearing 55x80x25mm Product identifiers

Series:21000
Cone Part Number:21063
Design Units:Imperial
Cage Type:Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:21600 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:5590 lbf
d:0.6250 in
B - Cone Width:0.8598 in
R - Cone Backface To Clear Radius3:0.03 in
da - Cone Frontface Backing Diameter:1.03 in
db - Cone Backface Backing Diameter:1.14 in
Ab - Cage-Cone Frontface Clearance:0.1 in
Aa - Cage-Cone Backface Clearance:0.1 in
a - Effective Center Location4:-0.23 in
C90 - Dynamic Radial Rating (90 million revolutions)5:3210 lbf
C1 - Dynamic Radial Rating (1 million revolutions)6:12400 lbf
C0 - Static Radial Rating:9560 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)7:3250 lbf
K - Factor8:0.99
G1 - Heat Generation Factor (Roller-Raceway):7
G2 - Heat Generation Factor (Rib-Roller End):4.1
Cg - Geometry Factor:0.0558

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