Original catalogue drawing - NSK catalogue, page 137
Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.
Scale cross-section
Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own
dimensions for selection reference only - not a manufacturing or assembly drawing.
Dimension table (mm / inch)
Symbol
Dimension
mm
inch
d
Bore diameter
85.027
3.3475
D
Outside diameter
150.089
5.909
B
Inner-ring / bearing width
46.672
1.8375
T
Overall assembly width
44.455
1.7502
C
Cup / outer-ring width
36.512
1.4375
r
Chamfer (min)
3.556
0.14
Notes
Tapered roller bearings are cone / cup assemblies; cone and cup weights are listed separately and the total is their sum. Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.
Main dimensions
Bore d (mm)
85.027
Bore d (in)
3.3475
Outside dia. D (mm)
150.089
Outside dia. D (in)
5.9090
Width B (in)
1.8375
Overall width T (mm)
44.455
Overall width T (in)
1.7502
Cup width C (in)
1.4375
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
59600
Basic static load rating Cor (lbs)
83200
Effective centre a (in)
1.28
Weight
Cone weight (kg)
2.159
Cup weight (kg)
1.061
Total weight (kg)
3.221
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.14
Chamfer r1 (in)
0.13
Shaft shoulder da min (in)
5.28
Shaft shoulder da (in)
3.74
Housing shoulder Da (in)
5.59
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
66,279
102
3,386
6
44,186
392
13,083
8
33,139
1,024
34,133
10
26,511
2,154
71,814
15
17,674
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 265,114 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.
Source & traceability
Brand
NSK
Source catalogue
NSK inch product catalogue
Catalogue page
p.139 (dimensions) / p.140 (ratings)
Dimensions in inches and millimetres, load ratings in lbs.
Send us the quantity you need and we will come back with price and
lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.
