The Largest Russian Manufacturer of Rock Bits
GAUGE PROTECTION

In order to increase wear resistance and to prevent the diameter of the bit from gauge loss the following types of hardfacing are used:

Type 1
Hardfacing of П- and Ш-shaped teeth surface

 

Type 2
Hardfacing of Г- and T-shaped teeth surface

 

INSERT GAUGE PROTECTION
Type 1
Gauge protection with one row of flat inserts

 

Type 2
Gauge protection with two rows of flat inserts

Type 3
Gauge protection with rows of flat and gage inserts

 

LEG AND SHIRTTAIL PROTECTION
 
Type 1
Type 2
Type 3
Type 4
Type 5
 

 

Type 1
Hard grain alloy is applied along the shirttail

Type 2
Hard grain alloy is applied along the shirttail and leg entering edge

Type 3
Hard grain alloy is applied along the shirttail and leg entering edge; ball plug area on the leg entering edge is protected with TCI

Type 4
Hard grain alloy is applied along the shirttail and leg entering edge; ball plug area and the entering edge of the whole leg is protected with TCI

Type 5
Reinforced protection of the whole leg by hard grain alloy and TCI with additional protection of the leg slant.

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