2309 is a NSK cylindrical roller bearing, bore 45 mm, O.D. 100 mm, width 36 mm, dynamic rating 22,200 lbs. Dimensions, drawing, interchanges and price.
Original catalogue drawing - NSK catalogue, page 63
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
36
1.4173
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)
45
Bore d (in)
1.7717
Outside dia. D (mm)
100
Outside dia. D (in)
3.9370
Width B (mm)
36
Width B (in)
1.4173
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
22200
Basic static load rating Cor (lbs)
23300
Limiting speed - grease (rpm)
5,600
Limiting speed - oil (rpm)
6,700
Weight
Weight (kg)
1.238
Mounting dimensions (fillets / shoulders)
Fillet ra max (in)
0.059
Fillet rb max (in)
0.059
Shaft shoulder da min (in)
2.087
Housing shoulder Da max (in)
3.622
Shaft shoulder db min (in)
2.087
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 1,800 rpm
4
24,688
102
941
6
16,458
392
3,634
8
12,344
1,024
9,481
10
9,875
2,154
19,948
15
6,583
8,323
77,069
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 98,751 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.65 (dimensions) / p.66 (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.
