Predicted and Experimental Performance of Large-Bore High-Speed Ball and Roller Bearings,
Abstract
Computer programs (Shaberth for ball bearings, Cybean for roller bearings) were used to predict bearing inner- and outer-race temperatures, cage speed, and friction power loss or heat transferred to the lubricant over a range of operating conditions. The results were compared with experimental data obtained previously. The 120-mm-bore ball bearings were operated at thrust loads of 6672, 13 350, and 22 240 N (1500, 3000, and 5000 lb) and at shaft speeds of 12 000, 16 7000, and 20 800 rpm with jet-lubrication flow rates of 0.0038 and 0.0083 m3/min (1.0 and 2.2 gal/min). The oil inlet temperature was maintained constant at 394 K (250 deg F).
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1983
- Accession Number
- ADP000710
Entities
People
- Harold H. Coe
Organizations
- National Aeronautics and Space Administration