Original catalogue drawing - NSK catalogue, page 39
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
45
1.7717
D
Outside diameter
100
3.937
B
Inner-ring / bearing width
25
0.9843
r
Chamfer (min)
1.499
0.059
Notes
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)
45
Bore d (in)
1.7717
Outside dia. D (mm)
100
Outside dia. D (in)
3.9370
Width B (mm)
25
Width B (in)
0.9843
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
12300
Basic static load rating Cor (lbs)
8270
Limiting speed - grease (rpm)
5,600
Limiting speed - oil (rpm)
7,500
Weight
Weight (kg)
0.875
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.059
Shaft shoulder da min (in)
2.106
Housing shoulder Da max (in)
3.602
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 1,800 rpm
4
13,678
64
593
6
9,119
216
2,000
8
6,839
512
4,741
10
5,471
1,000
9,259
15
3,648
3,375
31,250
Basic rating life per ISO 281: L10 = (C/P)3 with C = 54,713 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.41 (dimensions) / p.42 (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.
