UCF 209 Bearing Specifications
|
Pillow Block Ball Bearings No. |
Shaft Dia |
Dimensions(mm) |
|
d |
|
mm |
a |
e |
i |
g |
I |
z |
|
UCF 209 |
45 |
137 |
105 |
22 |
16 |
38.0 |
52.2 |
|
Pillow Block Ball Bearings No. |
Shaft Dia |
Dimensions(mm) |
|
d |
|
mm |
s |
n |
Bi |
Weight |
|
UCF 209 |
45 |
16 |
19.0 |
49.2 |
2.15 |
Permissible Speed of Rotation of UCF 209
The permissible speed of rotation of the cast iron pillow block ball bearings units is connected with the fit between shaft and bearing.
It is recommended that, under normal operating conditions,the fit between the bearing and the shaft be h7,the relevant values of permissible speed of rotation are shown.
Loose fit allowing lower speed is recommended when lighter load is applied,while tighter fit allowing higher speed is recommended when heavier load is applied.
Matching of bearings and shafts
|
Load condition |
Example |
The inside diameter of |
Shaft Tolerance |
|
Rotating outer ring load |
The inner ring is required to move easily on the shaft |
wheel on stationary axis |
All shaft diameters |
g6 |
|
Does not require the inner ring to move easily on the shaft |
Tension pulley, rope pulley |
h6 |
|
Rotating inner ring loads or non-directional loads |
Light load (<0.06 Cri) |
Electrical tools, water pumps, hair dryers, vehicles, precision instruments, machine tools |
<18 |
js5 |
|
18 to 100 |
js6 (i6) |
|
100 to 200 |
k6 |
|
Normal load (0.06~0.13 Cr) |
The general applications of bearings are medium and large motors, turbines, water pumps, engines, gears, and woodworking machine tools! |
<18 |
js5~6 (5-6) |
|
18 to 100 |
k5~6 |
|
100 to 140 |
m5~6 |
|
140 to 200 |
m6 |
|
200 to 280 |
n6 |
