Original catalogue drawing - NSK catalogue, page 191
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)
59500
Basic static load rating Cor (lbs)
76100
Limiting speed - grease (rpm)
4,600
Limiting speed - oil (rpm)
6,900
Weight
Weight (kg)
13.503
Mounting dimensions (fillets / shoulders)
Fillet ra (in)
0.079
Fillet rb (in)
0.039
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 1,500 rpm
4
66,167
64
711
6
44,112
216
2,400
8
33,084
512
5,689
10
26,467
1,000
11,111
15
17,645
3,375
37,500
Basic rating life per ISO 281: L10 = (C/P)3 with C = 264,669 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.193 (dimensions) / p.194 (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.
