Compact, highly reliable and fully self-contained design.
Robust casing design.
High capacity radial and axial load capability.
2 frame sizes covering a shaft diameter range of 300-500mm.
Radial loads are supported on a spherically seated whitemetal lined journal bush which is supplied in halves.
High pressure oil injection can be incorporated in the journal bush if required.
Tilting whitemetal thrust pads or whitemetal location faces can be incorporated at each end of the journal bush to support axial loads.
Design can include offset pivoted tilting thrust pads in order to reduce oil film temperatures and maximise film thicknesses.
Centre pivoted thrust pads can be fitted when continuous bi-directional operation is a requirement.
High pressure oil injection can be incorporated in the thrust faces if required.
PTFE thrust pads can be incorporated in the thrust faces to increase the thrust capacity and reduce the bearing frame size.
Oil circulation is achieved using an oil ring which is supplied in halves and clamped to the shaft working in conjunction with a floating oil scraper in the casing top.
Available with water cooling or circulating oil cooling.
Integral cooler assemblies can be supplied in cupro-nickel, stainless steel or titanium.
Electrical insulation can be provided.
Labyrinth end baffles, which are supplied in halves, are included at each end of the bearing.
Sealing to various IP grades can be provided at each end of the bearing as required.
Easy to install and maintain.
Design can accommodate a wide variety of instrumentation requirements.
| Frame size | Shaft journal diameter | Journal load | Thrust load | Maximum speed | |||
| Water cooled | Circ oil | ||||||
Maximum thrust load. Maximum journal load. | 1/2 Maximum thrust load. 1/2 Maximum journal load. | 1/4 Maximum thrust load. 1/4 Maximum journal load. | Maximum thrust load. Maximum journal load. | ||||
| mm | kN | kN | r.p.m. | r.p.m. | r.p.m. | r.p.m. | |
| HD1-T | 300 | 190 | 280 | 1290 | 1440 | 1590 | 1750 |
| 315 | 200 | 280 | 1260 | 1410 | 1560 | 1750 | |
| 335 | 210 | 280 | 1230 | 1380 | 1530 | 1750 | |
| 355 | 220 | 280 | 1200 | 1350 | 1490 | 1750 | |
| HD2-T | 375 | 285 | 480 | 890 | 990 | 1100 | 1500 |
| 400 | 305 | 480 | 870 | 970 | 1080 | 1500 | |
| 425 | 325 | 480 | 850 | 950 | 1060 | 1500 | |
| 450 | 345 | 480 | 820 | 920 | 1030 | 1500 | |
Notes
HD1 bearings are available in journal version only with shaft diameters of 375 and 400mm. Please consult Michell Bearings for further information.
HD2 bearings are available in journal version only with shaft diameters of 475 and 500mm. Please consult Michell Bearings for further information.
Operating speeds
The maximum r.p.m. given above ensure safe and reliable bearing performance with acceptable operating temperatures and oil film thicknesses - based on an oil bath temperature of 65°C.
