Timken NA558 – 552D
Tapered Roller Bearings - TNA (Tapered Double, non-adjustable) Imperial
(BRAND)：TIMKEN
(Availability)：In Stock
(EMAIL)：info@noksbearings.com
Detailed data of
NA558 – 552D
Specifications
Cone Part Number
NA558
Cup Part Number
552D
Related Assembly Number(s)
NA558-90041
Design Unit
Inch
Dimensions
d - Bore
60.325 mm
D - Cup Outer Diameter
123.825 mm
T - Bearing Width across Cones
79.375 mm
C - Double Cup Width
63.5 mm
Abutment and Fillet Dimensions
R - Cone Backface "To Clear" Radius1
3.5 mm
r - Cup Backface "To Clear" Radius2
1.5 mm
db - Cone Backface Backing Diameter
76 mm
Da - Cup Frontface Backing Diameter
115.82 mm
Basic Load Ratings
C90 - Dynamic Radial Rating (90 million revolutions)3
49400 N
C1 - Dynamic Radial Rating (1 million revolutions)4
332000 N
C5
29300 N
C906
86100 N
Factors
K - Factor7
1.69
e - ISO Factor8
0.35
Y1 - ISO Factor9
1.95
Y2 - ISO Factor10
2.9
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