326 is a NSK cylindrical roller bearing, bore 130 mm, O.D. 280 mm, width 58 mm, dynamic rating 112,000 lbs. Dimensions, drawing, interchanges and price.
Original catalogue drawing - NSK catalogue, page 55
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
130
5.1181
D
Outside diameter
280
11.0236
B
Inner-ring / bearing width
58
2.2835
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)
130
Bore d (in)
5.1181
Outside dia. D (mm)
280
Outside dia. D (in)
11.0236
Width B (mm)
58
Width B (in)
2.2835
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
112000
Basic static load rating Cor (lbs)
129000
Limiting speed - grease (rpm)
2,200
Limiting speed - oil (rpm)
2,600
Weight
Weight (kg)
15.876
Mounting dimensions (fillets / shoulders)
Fillet ra max (in)
0.118
Fillet rb max (in)
0.118
Shaft shoulder da min (in)
5.748
Housing shoulder Da max (in)
10.315
Shaft shoulder db min (in)
5.748
Shaft shoulder db max (in)
6.417
Housing shoulder Db min (in)
9.724
Housing shoulder Db max (in)
10.394
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 700 rpm
4
124,550
102
2,419
6
83,033
392
9,345
8
62,275
1,024
24,381
10
49,820
2,154
51,296
15
33,213
8,323
198,178
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 498,201 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.57 (dimensions) / p.58 (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.
