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250mm Tricone Roller Bit IADC 517 Size Customized With Trimming Cutters

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250mm Tricone Roller Bit IADC 517 Size Customized With Trimming Cutters

Name: 250mm Tricone Roller Bit IADC 517 Size Customized With Trimming Cutters
Brand: FLRT
Price: 1 USD

Brand Name : FLRT

Model Number : 9 7/8" FSA517GT

Certification : API-7-1, ISO 9001:2008

Place of Origin : China

MOQ : 1~10pcs

Supply Ability : 300pcs per quarter

Delivery Time : 5~45 workdays

Packaging Details : plywood box / iron box

Bearing Type : Sealed Roller Bearing

Cutting Material : TCI

Standard : API-7-1, ISO 9001:2008

Series : FSA

IADC : 517

G : Reinforced Gauge Protection

T : Trimming Cutter

Shirttail : Alloy Hard Facing Protection

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9 7/8" FSA517GT , 250mm TCI Bit , Sealed Friction Bearing , Tricone Roller Bit , with Trimming Cutters

SIZE AVAILABLE

Form 3 7/8 inch to 26 inch

RECOMMENDED DRILLING PARAMETERS FOR APPLICATION

Types & IADC Code		417	437 447	517 527	537 547	617 627	637
WOB	KN/mm(Bit Dia.)	0.4~0.9	0.4~0.9	0.35~1.0	0.5~1.0	0.6~1.1	0.7~1.2
WOB	Lb/in. (Bit Dia.)	2285~5142	2285~5142	2000~5714	2857~5714	3428~6285	4000~6857
Rotation Speed (Rpm)		140~60	140~60	125~50	110~50	100~40	80~40

The above chart represents commonly available sizes and types, we do produce other sizes and types of rock bits which do not appear on this list. Please contact us for more information.

The RPM applied to a bit will be a function of :

a. Type of bit

In general lower RPMs are used for insert bits than for milled tooth bits. This is to allow the inserts more time to penetrate the formation. The insert crushes a wedge of rock and then forms a crack which loosens the fragment of rock.

b. Type of formation

Harder formations are less easily penetrated and so require low RPM. A high RPM may cause damage to the bit or the drill string.

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