Original catalogue drawing - NSK catalogue, page 193
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
310
12.2047
B
Inner-ring / bearing width
51
2.0079
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
Bore d (in)
7.8740
Outside dia. D (mm)
310
Outside dia. D (in)
12.2047
Width B (mm)
51
Width B (in)
2.0079
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
48300
Basic static load rating Cor (lbs)
63100
Limiting speed - grease (rpm)
4,000
Limiting speed - oil (rpm)
5,900
Weight
Weight (kg)
13.703
Mounting dimensions (fillets / shoulders)
Fillet ra (in)
0.079
Fillet rb (in)
0.012
Shaft shoulder da (in)
8.346
Housing shoulder Da (in)
11.732
Housing shoulder Db (in)
11.929
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 1,300 rpm
4
53,712
64
821
6
35,808
216
2,769
8
26,856
512
6,564
10
21,485
1,000
12,821
15
14,323
3,375
43,269
Basic rating life per ISO 281: L10 = (C/P)3 with C = 214,849 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.195 (dimensions) / p.196 (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.
