V BELT DRIVES

Question 1

Define pitch

Answer 1

The distance between a point and a similar corresponding point

Question 2

Define Pitch circle in Belt Drive systems

Answer 2

The circle that goes through the place on each disc, where the speed and force are transmitted

Question 3

Define Pitch Diameter

Answer 3

Diameter of the Pitch Circle

Question 4

Define Pitch Length

Answer 4

is the length of the belt that passes through the pitch circles of (2) sheaves

Question 5

How do you calculate Pulley ratio

Answer 5

Driven over Driver = Pulley ratio

DVN÷DVR=PR

Question 6

Another name for a Sheave is?

Answer 6

Pulley

Question 7

(FHP) V-Belt drive are used in what type of setting?

Answer 7

Low power Intermediate Settings

Question 8

A Belt Drive has 3 features derived from the concept of pitch: Pitch diameter, Pitch Circle and ______?

Answer 8

Pitch Length

Question 9

The _______ is determined by dividing Pitch diameter of the Driven pulley by the Pitch diameter of the Driver pulley.

Answer 9

Pulley Ratio

Question 10

V-Belt should ride ____ and does not touch the ____of sheave.

Answer 10

High : Bottom

Question 11

A common belt used for conveyors is

Answer 11

A Flat Belt

Question 12

The _____is designed to grip the walls of a grooved pulley

Answer 12

V-Belt

Question 13

A____ has notches that engage notches in the pulley to prevent slipping

Answer 13

Timing belt

Question 14

Belt tension is measured by how much ___ is needed to to deflect the belt a certain distance.

Answer 14

Force

Question 15

Tension is applied to a belt by moving the motor away from the ____ Shaft

Answer 15

Driven Shaft

Question 16

Describe three (3) methods of measuring belt tension

Answer 16

Hand Pressure
Tension Tester
Spring scale/Straight edge

Question 17

The ____ is the distance between the points on the sheaves where the belt touches each sheave.

Answer 17

Belt Span

Question 18

Belt Drive Consist of 3 Basic Components

Answer 18

Belt
Driver Sheave
Driven Sheave

Question 19

The method used to measure belt tension is called the _________ method.

Answer 19

Belt Deflection

Question 20

A ________ is a component that attaches the driver and driven sheaves to their shafts.

Answer 20

Bushing

Question 21

The 3 main types of bushings are: quick detachable (QD), ______ taper, and taper lock.

Answer 21

Split

Question 22

A split taper bushing differs from a QD bushing in that it has a higher degree of ________ than the QD bushing.

Answer 22

taper

Question 23

The disadvantage of a split taper bushing is that it can only be installed in one _________.

Answer 23

Direction

Question 24

A belt size code of 4VX500 indicates a nominal length of _____.

Answer 24

50inch

Question 25

FHP V- belts are specified by the letter ___ in the belt size code

Answer 25

L

Question 26

The letter ( V ) in the belt size code specifies ____ V-Belts

Answer 26

Wedge

Question 27

V-belts are specified by their type, cross sectional size or belt section, and their _____

Answer 27

Length

Question 28

A QD bushing specification of SK x 1-1/8 signifies a QD bushing with a 1-1/8 inch ____

Answer 28

Bore

Question 29

A sheave specification of 4BK340SH indicates a sheave with an outer diameter of ____

Answer 29

3.4inch

Question 30

In the sheave specification of 4BK340SH; the first one or 2 digits indicate ______

Answer 30

the numbers of grooves

Question 31

What type of belt does sheave 4BK340SH require?

Answer 31

B Belt

Question 32

What type of belts are measured in Metric system

Answer 32

HTD Belts

Question 33

______belts and sprockets use the metric system

Answer 33

HTD ( High torque drive )