Fundamental Selection Guide for FYH Mounted Bearing Units(1)
Select FYH Bearing Housings Based on Installation Scenarios
FYH provides a full range of bearing housings with different forming structures to fit diverse mechanical assembly layouts. The matching relations between housing types, codes and applicable scenarios are shown in the table below:
| FYH Housing Type | Code | Applicable Equipment Scenarios |
|---|---|---|
| Standard Pillow Block | P | General conveyors, regular transmission equipment for horizontal base mounting |
| Heavy-Duty Thick Pillow Block | IP | Mining machinery, lifting equipment working under persistent shock and heavy loads |
| Narrow Pillow Block | PA | Compact assembly lines with limited base width |
| High-Center Pillow Block | PH | Equipment with pipes or supports under shafts requiring elevated shaft height to avoid interference |
| Lightweight Pillow Block | LP | Intermittent light-load small machinery |
| Stamped Steel Pillow Block | PP | Mini lightweight automated equipment for low-load applications |
| Square Flange Block / Boss Square Flange Block | F / FS | Vertical installation on equipment side plates; boss design facilitates precise hole positioning |
| Oval Flange Block / Offset Oval Block | FL / FA | Narrow lateral mounting space; adjustable support position for slight calibration |
| Round Cartridge Block with Boss | FC | Roller ends, machinery with prefabricated circular mounting holes |
| Take-Up Block Series | T | Belt conveyors and rollers; allows axial adjustment of shaft center; compensates thermal elongation of long shafts |
| Cartridge Block | C | Free ends of transmission shafts to absorb axial expansion caused by temperature changes |
| Hanger Block | HA | Suspended transmission equipment for pipes and coiling materials |
For general machinery with horizontal bases, the standard P pillow block is the first choice. Equipment operating under heavy shock loads shall adopt IP thickened housings. If the mounting width is restricted, PA narrow-type housings are suitable. Vertical installation on equipment side plates shall select F square or FL oval blocks. For long shaft structures, install one fixed bearing and equip the other end with T take-up block or C cartridge block to eliminate extra axial stress generated by thermal expansion.
