SEALED BEARING OF ROLLER BIT Russian patent published in 1994 - IPC

Abstract RU 2019670 C1

FIELD: drilling equipment. SUBSTANCE: members of high hardness are made in form of segments which are arranged in continuous row. Junction end parts of segments of one row are displaced relative to those of adjacent row. EFFECT: improved sealing of bearing in operation. 4 dwg

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	0		SU446619A1

RU 2 019 670 C1

Authors

Вogomolov R.М.

Мokrousov V.Р.

Тorgashov А.V.

Stekljanov В.L.

Dates

1994-09-15—Published

1990-12-10—Filed