1024 is a NSK cylindrical roller bearing, bore 120 mm, O.D. 180 mm, width 28 mm, dynamic rating 31,000 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
120
4.7244
D
Outside diameter
180
7.0866
B
Inner-ring / bearing width
28
1.1024
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)
120
Bore d (in)
4.7244
Outside dia. D (mm)
180
Outside dia. D (in)
7.0866
Width B (mm)
28
Width B (in)
1.1024
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
31000
Basic static load rating Cor (lbs)
42900
Limiting speed - grease (rpm)
3,400
Limiting speed - oil (rpm)
4,300
Weight
Weight (kg)
2.404
Mounting dimensions (fillets / shoulders)
Fillet ra max (in)
0.079
Fillet rb max (in)
0.039
Shaft shoulder da min (in)
5.079
Housing shoulder Da max (in)
6.732
Shaft shoulder db min (in)
4.980
Shaft shoulder db max (in)
5.236
Housing shoulder Db min (in)
6.575
Housing shoulder Db max (in)
6.831
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 1,100 rpm
4
34,474
102
1,539
6
22,982
392
5,947
8
17,237
1,024
15,515
10
13,789
2,154
32,643
15
9,193
8,323
126,113
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 137,895 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.
