TO13

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