Original catalogue drawing - FAG Schaeffler HR 1, page 236
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
12
0.4724
D
Outside diameter
21
0.8268
B
Inner-ring / bearing width
5
0.1969
r
Chamfer (min)
0.3
0.0118
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)
12
Outside dia. D (mm)
21
Width B (mm)
5
Inner-ring OD d1 (mm)
14.8
Inner-ring shoulder dia. D1 (mm)
18.3
Load ratings & speeds
Basic dynamic load rating Cr (lbs)
425
Basic static load rating Cor (lbs)
205
Basic dynamic load rating Cr (N)
1890
Basic static load rating C0r (N)
910
Fatigue limit load Cur (N)
46
Factor f0
13.4
Limiting speed nG (rpm)
42,500
Reference speed nB (rpm)
23,500
Weight
Weight (kg)
0.007
Mounting dimensions (fillets / shoulders)
Housing fillet r max (mm)
0.3
Shaft shoulder da (mm)
14
Housing shoulder Da (mm)
19
Housing fillet ra max (mm)
0.3
Bearing life (ISO 281 basic rating life)
C / P
Equivalent load P (N)
L10 (106 rev)
L10h at 3,000 rpm
4
472
64
356
6
315
216
1,200
8
236
512
2,844
10
189
1,000
5,556
15
126
3,375
18,750
Basic rating life per ISO 281: L10 = (C/P)3 with C = 1,890 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.236 (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.
