23964-MB is a FAG spherical roller bearing, bore 320 mm, O.D. 440 mm, width 90 mm, dynamic rating 1310 kN. Dimensions, drawing, interchanges and price.
Original catalogue drawing - FAG Schaeffler HR 1, page 728
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
320
12.5984
D
Outside diameter
440
17.3228
B
Inner-ring / bearing width
90
3.5433
r
Chamfer (min)
3
0.1181
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)
320
Outside dia. D (mm)
440
Width B (mm)
90
Inner-ring shoulder dia. D1 (mm)
406.2
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
294500
Basic static load rating Cor (lbs)
618225
Basic dynamic load rating Cr (N)
1.31e+06
Basic static load rating C0r (N)
2.75e+06
Fatigue limit load Cur (N)
201000
Factor e
0.19
Factor Y0
3.54
Limiting speed nG (rpm)
1,700
Weight
Weight (kg)
41.8
Mounting dimensions (fillets / shoulders)
Housing fillet r max (mm)
3
Shaft shoulder da (mm)
332.4
Housing shoulder Da (mm)
427.6
Housing fillet ra max (mm)
2.5
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 500 rpm
4
327,500
102
3,386
6
218,333
392
13,083
8
163,750
1,024
34,133
10
131,000
2,154
71,814
15
87,333
8,323
277,449
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,310,000 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.
Source & traceability
Brand
FAG
Source catalogue
FAG / Schaeffler Rolling Bearings HR 1
Catalogue page
p.728 (dimensions)
Load ratings in newtons, fatigue limit load Cur, limiting speed nG and reference speed nB.
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.
