Place of Origin:
China
Brand Name:
ZH
Certification:
IS09001
Model Number:
FYTB20TF
FYTB20TF FYTB20TF-W FYTB20TF-RS P0 P6 P5 P3 P4 P2 Quality LEVEL CHROME STEEL Pillow Ball Bearing
Product introduction
It is mainly used to bear radial and axial combined load based on radial load, generally not suitable to bear axial load alone, such bearings can be installed respectively inner ring (with a full set of rollers and retainers) and outer ring. This type of bearing does not allow the shaft to tilt relative to the housing, resulting in additional axial forces under radial load. The size of the axial clearance of the bearing has a great relationship with whether the bearing can work normally. When the axial clearance is too small, the temperature rise is higher. When the axial clearance is large, the bearing is easy to damage. Therefore, special attention should be paid to adjusting the axial clearance of the bearing during installation and operation, and pre-interference installation can be performed if necessary to increase the rigidity of the bearing
| d |
20 mm
|
Bore diameter |
|---|---|---|
| d1 |
≈28.2 mm
|
Outer diameter of inner ring |
| A |
29.5 mm
|
Overall width |
| A1 |
11 mm
|
Flange width |
| A3 |
3.2 mm
|
Depth of centring recess |
| A5 |
20.5 mm
|
Width including end cover |
| B |
31 mm
|
Width of inner ring |
| B1 |
31 mm
|
Overall bearing width |
| B4 |
4.5 mm
|
Distance from locking device side face to thread centre |
| Db1 |
58 mm
|
Top external diameter |
| Db2 |
60.5 mm
|
Base external diameter |
| Dc |
50.8 mm
|
Diameter of housing centering recess |
| H |
112 mm
|
Overall height |
| J |
90 mm
|
Distance between attachment bolts |
| L |
60.5 mm
|
Overall length |
| N |
11.5 mm
|
Diameter of attachment bolt hole |
| s1 |
18.3 mm
|
Distance from locking device side face to raceway centre |
| T |
37.3 mm
|
Overall unit width |
| RG |
1/4-28 UNF
|
Housing thread for grease fitting |
|---|---|---|
| R1 |
20 mm
|
Axial position of the housing thread |
| Rα |
45 °
|
Angular position of the housing thread |
| DN |
6.5 mm
|
Diameter of head sphere of grease fitting |
|---|---|---|
| SWN |
7 mm
|
Hexagonal key size for the grease fitting |
| GN |
1/4-28 SAE-LT
|
Thread of grease fitting |
| J6 |
74 mm
|
Distance of dowel pins |
|---|---|---|
| J7 |
11.5 mm
|
Axial offset of dowel pins |
| N4 |
2 mm
|
Recommended diameter for dowel pins |
| Basic dynamic load rating | C |
12.7 kN
|
|---|---|---|
| Basic static load rating | C0 |
6.55 kN
|
| Fatigue load limit | Pu |
0.28 kN
|
| Limiting speed |
8 500 r/min
|
|
|
Limiting speed with shaft tolerance h6
|
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