1020 is a NSK cylindrical roller bearing, bore 100 mm, O.D. 150 mm, width 24 mm, dynamic rating 20,900 lbs. Dimensions, drawing, interchanges and price.
Original catalogue drawing - NSK catalogue, page 59
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
100
3.937
D
Outside diameter
150
5.9055
B
Inner-ring / bearing width
24
0.9449
Notes
Cylindrical roller entries from the NSK inch catalogue are series numbers covering the N / NU / NJ / NUP / NH prefixes of the same size. 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)
100
Bore d (in)
3.9370
Outside dia. D (mm)
150
Outside dia. D (in)
5.9055
Width B (mm)
24
Width B (in)
0.9449
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
20900
Basic static load rating Cor (lbs)
28200
Limiting speed - grease (rpm)
4,300
Limiting speed - oil (rpm)
5,300
Weight
Weight (kg)
1.438
Mounting dimensions (fillets / shoulders)
Fillet ra max (in)
0.059
Fillet rb max (in)
0.039
Shaft shoulder da min (in)
4.252
Housing shoulder Da max (in)
5.591
Shaft shoulder db min (in)
4.193
Shaft shoulder db max (in)
4.370
Housing shoulder Db min (in)
5.472
Housing shoulder Db max (in)
5.650
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 1,400 rpm
4
23,242
102
1,209
6
15,495
392
4,673
8
11,621
1,024
12,190
10
9,297
2,154
25,648
15
6,198
8,323
99,089
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 92,968 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.61 (dimensions) / p.62 (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.
