Cast iron square flange mount unit with spigot UCFS
Brand :
FYH
Caution
- Ball bearing unit moves slightly due to self-aligning function.
- The fit between the main body and the bearing is set slightly tight. If the bearing is skewed upon delivery, insert the shaft, etc. into the bearing and adjust the inclination.
Product Description
A bearing unit that combines a bearing and a housing with a square flange and a spigot on the mounting surface
Drawing
Product Specification
Difference in the outer diameter dimension of the spigot (⊿H3s), difference in the distance dimension from the mounting surface to the center of the spherical strike plate (⊿A2s),
position tolerance of the bolt hole (X), and circumferential runout tolerance of the spigot (Y)
| Housing nominal number | ⊿H3s | ⊿A2s | X | Y |
|---|---|---|---|---|
| FS305 | -0.046 to 0 | +/- 0.5 | 0.7 | 0.2 |
| FS306–FS308 | -0.054–0 | |||
| FS309–FS310 | -0.063–0 | |||
| FS311–FS313 | +/- 0.8 | 1 | 0.3 to FS318 | |
| FS314 to FS319 | -0.072 to 0 | |||
| FS319 to 0.4 | ||||
| FS320 to FS322 | -0.081 to 0 | |||
| FS324 to FS328 | -0.089 to 0 |
Difference in bolt hole diameter dimension (⊿Ns)
| Housing nominal number | ⊿Ns |
|---|---|
| FS305–315 | +/- 0.2 |
| FS316–328 | +/- 0.3 |
Specifications Table
Note:
- 1. The nominal number of the unit and the nominal number of the unit with cover are followed by the fitting symbol after the bore number.
- 2. The compatible grease fitting nominal numbers are as follows.
A-1/4-28UNF: 305 to 308
A-R1/8: 309 to 328 - 3. For products with triple seals, add the accessory symbol L3 after the unit nominal number and bearing nominal number.
(Example of nominal number: UCFS307JL3, UC307L3). - 4. For the dimensions and shapes of applicable bearings, please refer to the bearing dimension table in the digital catalog.