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1. Roller Kelly Bushings
Roller Kelly Bushings are used for 171/2-491/2 inch rotary tables. They are designed and manufactured according to API Spec 7K.
2. Master Bushings
Our company supply the master bushings and insert bowls with the size from 171/2 to 371/2 inch. They are cast with high-quality alloy steel and the sizes conform to API Spec 7K. There are two kinds of type. Pin drive and square drive. API standard rotary slip, drill collar slip, casing slip or roller Kelly bushing can be contained in them.
3. Master Bushing Accessories
(1). Bit Breaker Adapter Plates are located in the Master Bushing drive pin holes and provide a 139/16 inch square to accommodate Bit Breakers. They are used for MPCH, MSPC, MDSP and MSP. P/N 1816 use for 23-491/2 inch master bushing; P/N 1815 use for 171/2-21 inch master bushing.
(2). Lifting Sling
Lifting Sling for removing and installing bushings and insert bowls
With 2 hooks P/N1021 for removing and installing insert bowls
With 4 hooks P/N6699 for removing and installing bushings.
(3). Bit breakers
Bit breakers are mostly used for screwing standard 3-cone bit.
More Product Features
Bushings
