Non-sealed ball and roller bearing
FORMATION: Soft to medium or soft with harder streaks(firm shales; anhydrites, soft limestone, sands, broken formations.)
CUTTING STRUCTURE: The TO13 has moderate tooth length and tooth crests having medium interfit and heel ventilation. It features full hard metal on tooth flanks and faces for maximum tooth life. Wider, T-shaped outer tooth rows, retard wear of the cone gage in abrasive zones
Journal Angle – 33°
Skew Angle – 3°
Gage Row Tooth Shape – T
ROTARY SPEED
250 – 60 RPM
IADC CODE 1-2-1
Non-sealed ball and roller bearing
FORMATION
Soft to medium or soft with harder streaks(firm shales; anhydrites, soft limestone, sands, broken formations.)
CUTTING STRUCTURE
The TO13 has moderate tooth length and tooth crests having medium interfit and heel ventilation. It features full hard metal on tooth flanks and faces for maximum tooth life. Wider, T-shaped outer tooth rows, retard wear of the cone gage in abrasive zones
Journal Angle
33°
Skew Angle
3°
Gage Row Tooth Shape
T
ROTARY SPEED
250 – 60 RPM
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