What is the use of gear tooth caliper?
The gear tooth caliper is used for the testing of gear teeth. The vertical scale measures the depth of teeth from the top to the pitch line, and the horizontal scale measures the thickness of teeth in the pitch line.
What is the accuracy of gear tooth vernier caliper?
Yamayo Gear Tooth Vernier Calipers – Range: M1-26mm (Graduation: 0.02mm – Accuracy (±): 0.04mm)
What is the least count of gear tooth vernier caliper?
The Least Count is to be determined as L.C= 1MSD – 1VSD = 1- 49/50 =0.02mm. 2. The workpiece is placed between the jaws of Vernier Calipers correctly.
How does a vernier caliper work?
Vernier caliper has two jaws. The larger one tightens around the object to measure distance while the smaller one to measure the internal diameter. Put the object in the correct position and tighten the screws. Read the Main Scale with Sliding Scale’s Zero: The main scale is used to know the whole and decimal numbers.
How do we check the profile of a gear tooth?
The tangent line of the base circle of the gear and the base circle of the pinion form the line of action for the gear set. The tooth thickness, diametral pitch and pressure angle all go into determining the gear tooth profile. These factors are determined by the desired contact ratio between mating parts of the gear.
How do you calculate gear teeth?
The number of teeth (z). This value is: z = d/m. Module (m). Ratio between the pitch circle in millimeters and the number of teeth.
What is the profile of a gear?
The profile angle of a gear is the angle at a specified pitch point between a line tangent to a tooth surface and the line normal to the pitch surface (which is a radial line of a pitch circle). This definition is applicable to every type of gear for which a pitch surface can be defined.
What can a vernier caliper be used for?
Gear Tooth vernier calipers is designed to measure in .001″or 0.02mm the thickness of gear teeth at the pitch line (the chordal thickness of the teeth) using the distance from the top of a tooth to the chord. For the same purpose, it can also be used for measuring hobs, from and thread tools,etc.
How is the thickness of a gear tooth measured?
Gear Tooth vernier calipers is designed to measure in .001″or 0.02mm the thickness of gear teeth at the pitch line (the chordal thickness of the teeth) using the distance from the top of a tooth to the chord.
Which is the back side of Vernier scale zero?
Here you can see zero of vernier scale is the back side of main scale zero. Or to the left of main scale zero. So if vernier scale zero is either backside or to the left of main scale zero, in both cases, zero error is the negative error. 1. Flat Edge Vernier Caliper