skip to Main Content
2508_542x-1-150x150@2x

Roller cone bits are the most versatile rock drilling tool, because its field of application covers almost all the variety of rocks: from softest to hardest. It is a non-dismountable structure consisting of three sections welded to each other (section-type bit) or of three legs welded to the molded hull (hull-type bit), with free rotating cones mounted on journals. The cones have cutting structure of milled steel teeth or press-fitted tungsten carbide inserts.

Roller cone bit is designed for drilling explosive, hydrogeological, geological prospecting and other holes with solid bottom in rocks of different hardness and fracture with cleaning the hole bottom with compressed air or air-water mixture. Roller cone bits are widely used in mining industry for the extraction of ores of ferrous and non-ferrous metals and other minerals.

Air bearing

Daimeter, in. (mm)SoftMediumHardVery HardPin Size
2-15/16" (74,6 mm)N-ROD
3" (76 mm)N-ROD
3-5/8" (92,1 mm)2-3/8" REG API
3-2/3" (93 mm)2-3/8" REG API
3-3/4" (95,3 mm)2-3/8" REG API
3-7/8" (98,4 mm)2-3/8" REG API
4" (101,6 mm)2-3/8" REG API
4-1/8" (104,8 mm)2-3/8" REG API
4-1/4" (108 mm)2-3/8" REG API
4-1/2" (114,3 mm)2-3/8" REG API
4-5/8" (117,5 mm)2-7/8" REG API
4-41/64" (117,9 mm)2-7/8" REG API
4-3/4" (120,6 mm)2-7/8" REG API
4-7/8" (123,8 mm)2-7/8" REG API
5" (127 mm)2-7/8" REG API
5-1/8" (130,2 mm)2-7/8" REG API
5-3/16" (132 mm)2-7/8" REG API
5-1/4" (133,4 mm)2-7/8" REG API
5-3/8" (136,5 mm)2-7/8" REG API
5-1/2" (139,7 mm)3-1/2" REG API
5-5/8" (142,9 mm)3-1/2" REG API
5-7/8" (149,2 mm)3-1/2" REG API
5-15/16" (151 mm)3-1/2" REG API
6" (152,4 mm)3-1/2" REG API
6-1/8" (155,6 mm)3-1/2" REG API
6-1/4" (158,8 mm)3-1/2" REG API
6-5/16" (161 mm)3-1/2" REG API
6-1/2" (165,1 mm)3-1/2" REG API
6-5/8" (168,3 mm)3-1/2" REG API
6-3/4" (171,4 mm)3-1/2" REG API
7-3/8" (187,3 mm)3-1/2" REG API
7-1/2" (190,5 mm)4-1/2" REG API
7-7/8" (200 mm)4-1/2" REG API
8-1/2" (215,9 mm)4-1/2" REG API
9" (228,6 mm)4-1/2" REG API
9-5/8" (244,5 mm)4-1/2" FH API
9-7/8" (250,8 mm)4-1/2" FH API; 6-5/8" REG API
10" (254 mm)4-1/2" FH API; 6-5/8" REG API
10-1/8" (258 mm)4-1/2" FH API; 6-5/8" REG API
11-5/8" (295,3 mm)6-5/8" REG API
12-1/4" (311,1 mm)6-5/8" REG API
12-5/8" (320 mm)6-5/8" REG API
13-3/4" (349,2 mm)6-5/8" REG API
15-1/2" (393,7 mm)6-5/8" FH API 7-5/8" REG API
17-1/2" (444,5 mm)7-5/8" REG API
19-19/64" (490 mm)6-5/8" FH API; 7-5/8" REG API

Sealed bearing

Daimeter, in. (mm)SoftMediumHardVery HardPin Size
4-1/8" (104,8 mm)2-3/8" REG API
6" (152,4 mm)3-1/2" REG API
6-1/8" (155,6 mm)3-1/2" REG API
7-1/2" (190,5 mm)4-1/2" REG API
7-7/8" (200 mm)4-1/2" REG API
8-1/2" (215,9 mm)4-1/2" REG API
9-7/8" (250,8 mm)4-1/2" FH API; 6-5/8" REG API
10" (254 mm)4-1/2" FH API; 6-5/8" REG API
11-5/8" (295,3 mm)6-5/8" REG API
12-1/4" (311,1 mm)6-5/8" REG API
13-3/8" (339,7 mm)6-5/8" REG API
13-3/4" (349,2 mm)6-5/8" REG API
14-3/4" (374,6 mm)7-5/8" REG API
15" (381 mm)7-5/8" REG API
15-1/2" (393,7 mm)6-5/8" FH API; 7-5/8" REG API
17-1/2" (444,5 mm)7-5/8" REG API
Soft:100-200 series IADC
Medium:300-500 series IADC
Hard:600-700 series IADC
Very Hard:800 series IADC
CALL NOW
+
Call me!
Back To Top