Timken LM121948D – LM121911
Tapered Roller Bearings - TDI (Tapered Double Inner) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Specifications
Series
LM121900
Cone Part Number
LM121948D
Cup Part Number
LM121911
Design Unit
Inch
Cage Material
Stamped Steel
Related Assembly Number(s)
LM121948D-902A2
Dimensions
d - Bore
107.95 mm
D - Cup Outer Diameter
152.400 mm
B - Double Cone Width
65.088 mm
C - Cup Width
28.575 mm
T - Bearing Width across Cups
65.085 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
0.800 mm
r - Cup Backface "To Clear" Radius2
3.30 mm
da - Cone Frontface Backing Diameter
115 mm
Db - Cup Backface Backing Diameter
139.95 mm
Ab - Cage-Cone Frontface Clearance
-0.8 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3
43600 N
C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)4
293000 N
C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5
75900 N
C6
21100 N
Factors
K - Factor7
2.07
e - ISO Factor8
0.28
Y1 - ISO Factor9
2.39
Y2 - ISO Factor10
3.56
G1 - Heat Generation Factor (Roller-Raceway)
218
Cg - Geometry Factor11
0.137
