Roller Cone Bits - Oil & Gas Products 2006-2007 - Varel International

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S t e e l T o o t h - O p e n B e a r i n g B i t s Cutting Structures Premium Hardfacing Forged Teeth Non-Sealed <strong>Roller</strong> Bearing Center Water Course Shown: 4 3/4” L2 20
A v a i l a b i l i t y C h a r t Cutting Structure High extension balling resistant cutting structure with forged teeth and self-sharpening tooth hardmetal for high penetration rates and long life in soft abrasive formations. Bearing Package Traditional ball and roller bearing, utilizing thrust buttons for axial bearing loads, gives reliable performance under a variety of rotary speeds and loads. Premium Hardfacing The tooth surfaces are fortified with premium, high-density tungsten carbide hardfacing applied by oxy-acetylene welding for superior wear resistance. Center Jet Nozzle (J Feature)** A fourth interchangeable jet is installed in the center of the bit to reduce bit balling or provide extra flow capacity. (Available only in 8 3 ⁄ 8 " bits and larger.) Forged Teeth <strong>Varel</strong> steel tooth bits 13 ¾" (349.2 mm) and smaller are manufactured with our exclusive forged tooth process. This innovative method provides stronger, more impact-resistant teeth when compared with milling because the metal flow lines from the forging process follow the tooth contours instead of being cut by machining. Steel Tooth - Open Bearing Bit Availability Bit Type IADC Inches (in) Millimeters (mm) L111 111 14 ¾, 15, 16, 17 ½, 20, 22, 23, 24, 26, 34, 36 L113 113 28 711.2 374.6, 381.0, 406.4, 444.5, 508.0, 558.8, 584.2, 609.6, 660.4, 863.6, 914.4 L121 121 12 ¼, 13 ¾ 311.1, 349.2 L131 131 17 ½, 22 444.5, 558.8 L2 211 3 1 ⁄ 8 , 3 ¼, 3 ½, 3 5 ⁄ 8 , 3 ¾, 3 7 ⁄ 8 , 4 1 ⁄ 8 , 4 ¼, 4 ½, 4 5 ⁄ 8 , 4 ¾, 4 7 ⁄ 8 , 5 1 ⁄ 8 , 5 ¼, 5 5 ⁄ 8 , 6, 6 1 ⁄ 8 , 6 ¼, 6 ½, 6 ¾ 79.3, 82.5, 88.9, 92.1, 95.2, 98.4, 104.8, 107.9, 114.3, 117.5, 120.7, 123.8, 130.1, 133.4, 142.8, 152.4, 155.5, 158.7, 165.1, 171.4 L1 311 3 7 ⁄8, 4 ¾, 6 1 ⁄ 8 98.4, 120.7, 155.6 LH1 321 2 7 ⁄8, 2 15 ⁄ 16, 4, 4½, 4 ¾, 4 7 ⁄8 73.0, 74.6, 101.6, 114.3, 120.6, 123.8 21
Page 2 and 3: T a b l e o f C o n t e n t s About
Page 4 and 5: V a r e l R o l l e r C o n e D r i
Page 6 and 7: F e a t u r e s Cutting Structures
Page 8 and 9: P r e m i u m O p t i o n s Diamond
Page 10 and 11: J o u r n a l B e a r i n g F e a t
Page 12 and 13: C h a l l e n g e r T C I - S e a l
Page 16 and 17: C h a l l e n g e r S t e e l T o o
Page 20 and 21: C h a l l e n g e r S t e e l T o o
Page 24 and 25: R o l l e r C o n e R e f e r e n c
Page 26 and 27: B i t S h i p p i n g W e i g h t s
Page 28: World Headquarters Dallas, Texas US

Roller Cone Bits - Oil & Gas Products 2006-2007 - Varel International

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