Tigerrig S Series Elastomer Sealed Roller Bearing Bit
Features：
1.Cutting Structure
The wear-resistance of teeth is enhanced with premium tungsten carbide hard facing on the tooth surfaces for steel tooth bit. The durability of premium tungsten carbide inserts is improved with new formulas and new techniques for insert bit.
2.Gauge Structure
Multiple gauge protection with gauge trimmers on the heel and gauge inserts on the gauge surface of the cone, tungsten carbide inserts and hard facing on the shirttail increases gauge holding capability and bearing life.
3.Bearing Structure
High precision journal bearing with two thrust faces. Balls lock the cone. Hard faced head bearing surface. Cone bearing inlaid with friction-reducing alloy and then silver-plated. Abrasion resistance and seizure resistance of the bearing are improved, and suitable for high rotary speed.
4.Seal And Lubrication
The advanced metal seal package consists of two metal seals and two elastic energizers. Compressed energizers ensure good contact being kept on two sealing surfaces of metal rings by elastic force, and achieve the bearing seal. In the drilling, metal seals are relatively dynamic, and the energizers are static. This will improve the reliability and durability of bearing seal. The pressure compensator system and advanced grease can greatly increase the lubricating reliability.
5.Production Application
It is suitable for downhole motor and highspeed applications.
Current Availability
Bit Size
Bit Type
in
mm
5 7/8
149.2
S214
7 1/2
190.5
S214C S134C S224C
7 7/8
200.0
S214 S134
8 3/8
212.7
S215
8 1/2
215.9
S124W S134
9 1/2
241.3
S214G
9 5/8
244.5
S114G S124G S134G
9 7/8
250.8
S115GW
10 5/8
269.9
S115GW S125GW S215G
11
274.9
11 5/8
295.3
12
304.8
S124W
12 1/4
311.2
ST115GW ST125GW S135 S214 S224 S324
13 5/8
346.1
ST115GW S124W
13 3/4
349.3
ST115W ST125W ST135W
14 3/4
374.6
S115GW S125GW S135GW
15
381.0
S124G S224G
15 1/2
393.7
S115GW S125GW S135GW S215G
16
406.4
S535G S545G
17 1/2
444.5
S115GW S125GW S135G S215G
19 1/4
489.0
S115CGW S225CG
20
508.0
S125GW S215CGWS515CG ST515CG S525CG ST525CG ST545CG
22
558.8
S125C
24
609.0
26
660.4
S124C S134C S525CG
36
914.4
S124CW
Recommended Drilling Parameters
IADC
WOB
(KN/mm) (Bit Dia.)
RPM(r/min)
Applicable Formation
114 115
0.3-0.75
180-60
Very soft formations with low compressive strength and high drill ability, such as clay, mudstone, chalk, etc.
124 125
0.3-0.85
Soft formation with low compressive strength and high drill ability, such as mudstone, gypsum, salt, soft shale, soft limestone, etc.
134 135
0.3-0.95
150-60
Soft to medium soft formations with low compressive strength and high drill ability, such as medium soft shale, anhydrite, medium soft limestone, medium soft sandstone, medium formation with harder and interbed, etc.
214 215
0.35-0.95
Medium formations with high compressive strength, such as medium soft shale, anhydrite, medium soft limestone, medium soft sandstone, medium formation with harder interbed, etc.
244 245
150-50
Medium hard formations with high compressive strength, such as abrasive shale, limestone, sandstone, dolomite, anhydrite, marble, etc.
324 325
0.4-1.0
120-50
Hard semi-abrasive formations, such as abrasive shale, limestone, sandstone, dolomite, anhydrite, marble, etc.
515 525
0.35-0.9
535 545
0.35-1.0
Soft to medium soft formations with low compressive strength, such as medium soft shale, medium soft limestone, medium soft sandstone, medium formation with harder and abrasiver interbed, etc.