Timken NA72212 – 72488D
Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Detailed data of
NA72212 – 72488D
Specifications
Cone Part Number
NA72212
Cup Part Number
72488D
Design Unit
Inch
Dimensions
d - Bore
53.975 mm
D - Cup Outer Diameter
123.825 mm
T - Bearing Width across Cones
77.788 mm
C - Double Cup Width
55.563 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
2.300 mm
r - Cup Backface "To Clear" Radius2
1.5 mm
db - Cone Backface Backing Diameter
74 mm
Da - Cup Frontface Backing Diameter
115.82 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)3
42800 N
C1 - Dynamic Radial Rating (1 million revolutions)4
287000 N
C5
54000 N
C906
74500 N
Factors
K - Factor7
0.79
e - ISO Factor8
0.74
Y1 - ISO Factor9
0.92
Y2 - ISO Factor10
1.36
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