HR32311J is a NSK tapered roller bearing, bore 55 mm, O.D. 120 mm, width 43 mm, dynamic rating 45,900 lbs. Dimensions, drawing, interchanges and price.
Original catalogue drawing - NSK catalogue, page 115
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
55
2.1654
D
Outside diameter
120
4.7244
B
Inner-ring / bearing width
43
1.6929
T
Overall assembly width
45.5
1.7913
C
Cup / outer-ring width
35
1.378
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)
55
Bore d (in)
2.1654
Outside dia. D (mm)
120
Outside dia. D (in)
4.7244
Width B (mm)
43
Width B (in)
1.6929
Overall width T (mm)
45.5
Overall width T (in)
1.7913
Cup width C (mm)
35
Cup width C (in)
1.3780
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
45900
Basic static load rating Cor (lbs)
58000
Limiting speed - grease (rpm)
3,200
Limiting speed - oil (rpm)
4,300
Weight
Weight (kg)
2.39
Mounting dimensions (fillets / shoulders)
Chamfer r (in)
0.08
Shaft shoulder da min (in)
2.874
Housing shoulder Da max (in)
4.331
Shaft shoulder db max (in)
2.638
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 1,000 rpm
4
51,043
102
1,693
6
34,029
392
6,542
8
25,522
1,024
17,067
10
20,417
2,154
35,907
15
13,612
8,323
138,724
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 204,173 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.117 (dimensions) / p.118 (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.
