23940-S-MB is a FAG spherical roller bearing, bore 200 mm, O.D. 280 mm, width 60 mm, dynamic rating 550 kN. Dimensions, drawing, interchanges and price.
Original catalogue drawing - FAG Schaeffler HR 1, page 722
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
200
7.874
D
Outside diameter
280
11.0236
B
Inner-ring / bearing width
60
2.3622
r
Chamfer (min)
2.1
0.0827
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)
200
Outside dia. D (mm)
280
Width B (mm)
60
Inner-ring shoulder dia. D1 (mm)
256.9
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
123645
Basic static load rating Cor (lbs)
240546
Basic dynamic load rating Cr (N)
550000
Basic static load rating C0r (N)
1.07e+06
Fatigue limit load Cur (N)
71000
Factor e
0.2
Factor Y0
3.34
Limiting speed nG (rpm)
2,800
Reference speed nB (rpm)
1,650
Weight
Weight (kg)
11.8
Mounting dimensions (fillets / shoulders)
Housing fillet r max (mm)
2.1
Shaft shoulder da (mm)
210.2
Housing shoulder Da (mm)
269.8
Housing fillet ra max (mm)
2.1
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 900 rpm
4
137,500
102
1,881
6
91,667
392
7,268
8
68,750
1,024
18,963
10
55,000
2,154
39,897
15
36,667
8,323
154,138
Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 550,000 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.722 (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.
