V Groove Pulley Material Selection and V groove Pulley Standard Dimensions

V Groove Pulley Material Selection

For generally purpose V groove pulleys are made by Grey Iron Casting IS: 210-1970

Grey Cast iron Material Grade and Properties
Code of Designation	Grades	Tensile strength	Transverse Test			Typical Applications	Note:
			Breaking load Min, Kgf	Corresponding Transverse Rupture Stress Kgf/mm2	Deflection Min, mm
FG 15	15	15	800	34.0	4.0	Parts Requiring no Special Grade for general Structural Purpose	Damping Capacity Decreases with increases in tensile strength
FG 20	20	20	900	38.2	4.5
FG 25	25	25	1000	42.4	5.0	Parts Subjected to severe strain such as cylinder parts, etc.
FG 30	30	30	1100	46.7	5.5
FG 35	35	35	1350	57.3	5.5	for extraordinary use
FG 40	40	40	1500	63.7	5.5

for general purpose pulley we can select FG 20 for which the equivalent grade is 

SAE 111

DIN 1691/GG22

BS 1452/Gr 12

CSN 42 24 21

V Groove Pulley Design

V groove Standard dimensions as per IS 3142 

How to select V groove pulley standard dimension like width, depth, Pitch line, etc is discussed below.

Based upon the belt used for transmission the pulley dimension are selected there are generally different Types of V belt A, B, C, D, E 

the below drawing shows the Dimensions of the Sectioned double groove v Pulley. 

And the values are taken from standard as shown in the table below 

a sample pulley dimensions are given below