KOYO UCHA212-39 bearing units - NTN PRECISION AXLE CORP.

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KOYO UCHA212-39 bearing units Systems

Cone Part Number:LM12749
Design Units:Imperial
Cage Type:Stamped Steel
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)1:15100 lbf
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)2:3920 lbf
d:0.8656 in
B - Cone Width:0.6550 in
R - Cone Backface To Clear Radius3:0.050 in
da - Cone Frontface Backing Diameter:1.02 in
db - Cone Backface Backing Diameter:1.08 in
Ab - Cage-Cone Frontface Clearance:0.04 in
Aa - Cage-Cone Backface Clearance:0.01 in
a - Effective Center Location4:-0.21 in
C90 - Dynamic Radial Rating (90 million revolutions)5:2250 lbf
C1 - Dynamic Radial Rating (1 million revolutions)6:8680 lbf
C0 - Static Radial Rating:7930 lbf
Ca90 - Dynamic Thrust Rating (90 million revolutions)7:1180 lbf
K - Factor8:1.91
G1 - Heat Generation Factor (Roller-Raceway):8.2
G2 - Heat Generation Factor (Rib-Roller End):6.98
Cg - Geometry Factor:0.048

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NTN PRECISION AXLE CORP.: Address475 Kimberly Drive, Carol Stream, Illinois U.S.A.; Phone(Working Time)630-690-6324; Fax

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Stock Categories

Technical Articles

angular contact ball bearings

complex bearings

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