Original catalogue drawing - NSK catalogue, page 221
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
82
3.2283
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)
82
Width B (in)
3.2283
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
147000
Basic static load rating Cor (lbs)
262000
Limiting speed - grease (rpm)
2,800
Limiting speed - oil (rpm)
3,200
Weight
Weight (kg)
22.553
Mounting dimensions (fillets / shoulders)
Fillet ra (in)
0.0787
Shaft shoulder da min (in)
11.7717
Shaft shoulder da (in)
8.3071
Housing shoulder Db (in)
11.2205
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 900 rpm
4
163,472
64
1,185
6
108,981
216
4,000
8
81,736
512
9,481
10
65,389
1,000
18,519
15
43,593
3,375
62,500
Basic rating life per ISO 281: L10 = (C/P)3 with C = 653,889 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.223 (dimensions) / p.224 (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.
