New direction for paper machine lubricants, ashless vs. ash type additive formulations

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · Lubrication Engineering

OSTI ID:229892

Kray, L R; Chan, J H; Morimoto, K M ^[1]

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1. Chevron Research and Technology Company, Richmond, CA (United States)

The development of lubricants for paper machine roller bearings has followed an evolutionary development from the use of uncompounded oils to high performance products, most of which utilize metallic based antirust, antiwear/antioxidant additives to meet the demanding requirements of this application. It has been found that ashless or metal free oils can be formulated for this service which show outstanding performance. Performance comparisons of a new ashless formulation have been verified by field testing. In addition, the ashless oil can be used as an EP gear lubricant and meets new lubricant requirements for paper machine Extended Nip - Crown Control rolls. Also no mortality or other adverse toxic effects were observed with Rainbow Trout in the acute aquatic toxicity (LC-50) test. Therefore, small accidental discharges or leaks should not be toxic to sensitive species of fish such as trout and salmon. 8 refs., 1 fig., 7 tabs.

• OSTI ID: 229892
• Journal Information: Lubrication Engineering, Journal Name: Lubrication Engineering Journal Issue: 10 Vol. 51; ISSN LUENAG; ISSN 0024-7154
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
ADDITIVES
LUBRICATING OILS
MECHANICAL PROPERTIES
PAPER INDUSTRY
PERFORMANCE TESTING
ROLLER BEARINGS
TOXICITY