 |
517
1
tianjin ,shanghai
water well,oil well,HDD,exploration,etc
100% New
| Quantity: | |
|---|---|
HR Series Rubber Sealed Bearing Bits have a journal bearing with a hardfaced head bearing surface. The inner hole of the cone is coated with silver. This improves the bearing's load capacity and resistance to seizure. The O-ring seal is made of high saturated buna-N, which is more resistant to wear. The seal section has been increased and a precisely designed sealing flange has been added in the cone sealing area to enhance the seal's reliability.
HENGJI BIT SPECIFICATION | |
Bit Size | 4 1/2'' 114mm |
IADC Code | 517 |
Series | HR |
Tooth type | TCI/tungsten carbide insert |
Connection | 2 7/8 API REG PIN |
Bearing | rubber sealed bearing |
Nozzle | three jet nozzles |
Rotary Speed(rpm) | 140~60 |
Weight on Bit(KN/MM) | 0.35~1.0 |
Application | water well,oil well,HDD,exploration,etc |
Formation | Soft formation with low compressive strength and high drillability such as mudstone,gypsum,salt,soft shale,soft limestone,etc. |
Key Features:
1. Bearing Structure: The bit has a high precision journal bearing with two thrust faces. The cone is locked in place with a ball, and the head bearing surface is hardfaced. The cone bearing is also lined with a friction-reducing alloy and silver-plated. This improves the abrasion and seizure resistance of the bearing, making it suitable for high rotary speeds.
2. G-Gauge Protection: The bit has additional tungsten carbide inserts placed in the gauge area to reduce wear in abrasive formations. This protects the gauge and increases the stability and lifespan of the bit.
3. Cutter: The bit is equipped with premium carbide teeth that have increased resistance to breaking and abrasion. This enhances the lifespan of the cutting structure.
4. Nozzle: The bit is designed with sturdier nozzles that provide greater flow capacity and ensure optimal fluid distribution to the cones.
HR Series Rubber Sealed Bearing Bits have a journal bearing with a hardfaced head bearing surface. The inner hole of the cone is coated with silver. This improves the bearing's load capacity and resistance to seizure. The O-ring seal is made of high saturated buna-N, which is more resistant to wear. The seal section has been increased and a precisely designed sealing flange has been added in the cone sealing area to enhance the seal's reliability.
HENGJI BIT SPECIFICATION | |
Bit Size | 4 1/2'' 114mm |
IADC Code | 517 |
Series | HR |
Tooth type | TCI/tungsten carbide insert |
Connection | 2 7/8 API REG PIN |
Bearing | rubber sealed bearing |
Nozzle | three jet nozzles |
Rotary Speed(rpm) | 140~60 |
Weight on Bit(KN/MM) | 0.35~1.0 |
Application | water well,oil well,HDD,exploration,etc |
Formation | Soft formation with low compressive strength and high drillability such as mudstone,gypsum,salt,soft shale,soft limestone,etc. |
Key Features:
1. Bearing Structure: The bit has a high precision journal bearing with two thrust faces. The cone is locked in place with a ball, and the head bearing surface is hardfaced. The cone bearing is also lined with a friction-reducing alloy and silver-plated. This improves the abrasion and seizure resistance of the bearing, making it suitable for high rotary speeds.
2. G-Gauge Protection: The bit has additional tungsten carbide inserts placed in the gauge area to reduce wear in abrasive formations. This protects the gauge and increases the stability and lifespan of the bit.
3. Cutter: The bit is equipped with premium carbide teeth that have increased resistance to breaking and abrasion. This enhances the lifespan of the cutting structure.
4. Nozzle: The bit is designed with sturdier nozzles that provide greater flow capacity and ensure optimal fluid distribution to the cones.
