How is tightening torque of a screw calculated?
Axial Force Ff, by using Equation(1) Ff=0.7× y×As 0.7×112×20.1 1576[kgf] A bolt is tightened by torque, torque inclination, rotating angle, stretch measurement and other methods. The torque method is widely used due to its simplicity and convenience.
How much torque does a 1/4 bolt have?
ASTM A449 / SAE Grade 5*
| Bolt Size | TPI | Tightening Torque (ft lbs) |
|---|---|---|
| Plain | ||
| 1⁄4 | 20 | 8 |
| 5⁄16 | 18 | 17 |
| 3⁄8 | 16 | 31 |
Why is torque important on a water pump?
Is very important that the bolts on the water pump are properly torque for several reasons to make sure that you don’t stretch the bolts and any change in temperature can break them but also that the water pump is properly flush with the block Loading…
What is the pressure of a screw pump?
Screw Pump Application Ranges Flow Rate Ranges – 50 to 15,000 gallons per minute, 189 to 56,781 liters per minute Total Head (Pressure) Ranges – 50 to 4,500 psi, 3 to 310 bar Horse Power Ranges – 5 to 5,000
What kind of pump is a screw pump?
A screw pump is a type of positive displacement pump that uses two or more screws that intermesh to pressurize fluids and move them in a system. The screws take in fluid then push it out from the other side while increasing its pressure. There are two main types of screw pumps in common use today:
What are the torque specifications for a torkspec?
Type: Bolt Dim: M 12 X 1.50 14.92 Type: 20.34 Type: Bolt 9.49 SOHC – Oil Pump Drive Chain Guide Rail Bolts Type: Bolt 29.83 SOHC – Bearing Caps NOTE: 2 Step: 22 FtLbs + 90deg Type: 65.08 SOHC – Crankshaft Main Bearing Cap Bolts Type: Bolt 59.66 SOHC – NOTE: 4 Steps: 30; 44; 90deg; 90deg Type: Bolt
What are the torque specs on a water pump?
New Bolts and torque Specs on the water pumps. A new water pump fastening procedure has been implemented on all High Feature V6 engines (2.8L, 3.0L, and 3.6L) on all models (2004-2013 model years) to help reduce the potential for water pump gasket leaks. This new procedure requires NEW bolts to be used when attaching a water pump.
How to tighten the bolts on a water pump?
Tighten the water pump bolts in sequence to 10 N·m (89 lb. in.). 7. Tighten the water pump bolts a second pass in sequence to 10 N·m (89 lb. in.). 8. Tighten the bolts a final pass in the sequence shown an additional 45 degrees.
Type: Bolt Dim: M 12 X 1.50 14.92 Type: 20.34 Type: Bolt 9.49 SOHC – Oil Pump Drive Chain Guide Rail Bolts Type: Bolt 29.83 SOHC – Bearing Caps NOTE: 2 Step: 22 FtLbs + 90deg Type: 65.08 SOHC – Crankshaft Main Bearing Cap Bolts Type: Bolt 59.66 SOHC – NOTE: 4 Steps: 30; 44; 90deg; 90deg Type: Bolt
What is the torque of a screw fastener?
METRIC FASTENERS Nominal Size or Basic Screw Dia. Threads per inch Tensile Stress Area (sq. in.) ASTM A574 Clamp Load (lbs) Tightening Torque K = 0.15 K = 0.17 K = 0.20 Coarse Thread Series