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JCMAS New Grease Specifications for Construction Machinery
Technical Paper
2006-01-3504
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
Since construction machinery manufacturers recommend various brands and types of greases for their machinery, customers would benefit from a standardized grease which can be used in all construction machinery. Furthermore, construction machinery manufacturers have many experiences of field problems caused by commercially available and commonly used EP Lithium greases. Therefore, the Fuels and Lubricants Committee of Japan Construction Mechanization Association (JCMA) has developed a new grease specification called “Japan Construction Mechanization Association Specification (JCMAS) GK,” for construction equipment. The JCMAS GK includes requirements for National Lubrication and Grease Institute (NLGI) No. 1 and No. 2 consistency grades. The JCMAS GK greases have enough lubricating properties for periodical grease fitting of most construction machines, hydraulic excavators, bulldozers and wheel loaders. The JCMAS GK greases are applicable from -20 to +130 degrees Celsius. The JCMAS GK greases can also improve nitrile and urethane seal durability. Finally, a biodegradable grease specification was established, JCMAS GKB, was established for construction machinery.
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Authors
- Tsunejiryo Seno - Kubota Corporation
- Satoshi Ohkawa - Komatsu Ltd.
- Genroku Sugiyama - Hitachi Construction Machinery Co., Ltd.
- Kimihiko Ogura - Shin Caterpillar Mitsubishi Ltd.
- Hiroshi Ishiyama - Sumitomo Construction Machinery Co., Ltd.
- Yutaka Touji - Kobelco Construction Machinery Co., Ltd.
- Hiroyasu Kodera - Kawasaki Heavy Industries, Ltd.
- Masato Nagao - Tadano Ltd.
- Hiroaki Tauchi - Giken Seisakusho Co., Ltd.
- Hitoshi Hamaguchi - Degussa Japan Co., Ltd.
- Shinichi Mitsumoto - Nippon Oil Corporation
- Takahiro Ozaki - Showa Shell Sekiyu K.K.
- Minoru Nakamura - Nippon Koyu Ltd.
- Kiyoshi Takeuchi - Kyodo Yushi Co., Ltd.
- Yoshitaka Shiraga - Idemitsu Kosan Co., Ltd.
- Akihiro Mochizuki - Chevron Japan Ltd.
- Masao Seki - Afton Chemical Japan Corporation
- Hirohito Hasegawa - Lubrizol Japan Limited
- Hironori Nishina - NOK Corporation