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
50
1.9685
D
Outside diameter
110
4.3307
B
Inner-ring / bearing width
27
1.063
r
Chamfer (min)
2
0.0787
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)
50
Outside dia. D (mm)
110
Width B (mm)
27
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
18322
Basic static load rating Cor (lbs)
11690
Basic dynamic load rating Cr (N)
81500
Basic static load rating C0r (N)
52000
Limiting speed - grease (rpm)
4,500
Limiting speed - oil (rpm)
6,000
Effective load centre a (mm)
36.6
Weight
Weight (kg)
1.1
Mounting dimensions (fillets / shoulders)
Housing fillet r max (mm)
2
Chamfer r1 min (mm)
1
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 1,500 rpm
4
20,375
64
711
6
13,583
216
2,400
8
10,188
512
5,689
10
8,150
1,000
11,111
15
5,433
3,375
37,500
Basic rating life per ISO 281: L10 = (C/P)3 with C = 81,500 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 CAT. No. E1103 (metric)
Catalogue page
p.212 (dimensions)
Load ratings in newtons, weights in kg, limiting speeds for grease and oil lubrication.
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.
