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Tolerances for Normal Pulley & Groove Section Dimensions

Conventional Sheave Tolerances

Outside Diameter
Under 12.00"±.020"
12.00" thru 23.99"±.040"
24.00" thru 57.99"±.060"
58.00" thru 71.99"±.120"
Over 72.00"±.250"
Outside Diameter Eccentricity
Under 10.00"P.D..010"
10.01 "thru 60.00".010" plus .0005"
P.D.per inch of P.D.
Side Wobble And Runout
20.00" P.D.& Under

20.00" thru 60.00" P.D.


not to exceed
.001" per inch of P.D.
Add.0005" for each
add 1 inch of P.D.
up to 60.00"

FACE WIDTH OF AND STANDARD SHEAVE
FACE WIDTH =S(N-1)+2E
WHERE:
N=NUMBER OF GROOVES
STANDARD SHEARS
 


Standard Shears

BELTMINIMUM
RECOMMENDED
OUTSIDE DIAM.
OUTSIDE
EFFECTIVE
DIAMETER
GROOVE
ANGLE
GROOVE DIMENSIONS
WDXSE
3V2.65UNDER 3.5
3.5-6
6.01 - 12
OVER 12
36°
38°
40°
42°
0.3500.3500.0250.4070.344
5V7.10UNDER 10
10-16
OVER 16
38°
40°
42°
0.6000.6000.0500.6880.500
8V12.50UNDER 16
16-22.4
OVER 22.4
38°
40°
42°
110.1001.1250.750

Standard Shears

BELTMINIMUM
RECOMMENDED
PITCH DIAM.
P.D.
RANGE
GROOVE
ANGLE
GROOVE DIMENSIONS
WDXSE
A3.02.6-5.4
OVER 5.4
34°
38°
0.494
0.504
0.4900.1250.6250.375
B7.104.6-7.0
OVER 7.0
34°
38°
0.637
0.650
0.5800.1750.7500.500
A-BA 3.0
B 5.4
3.4-6.8
OVER 6.8
34°
38°
0.612
0.625
0.6250.1750.7500.500
C9.07.0-7.99
8.0-12.0
OVER 12.0
34°
36°
38°
0.879
0.887
0.895
0.7800.20010.688

 

Pilot bore sheaves:
AK,2AK
Pilot bore sheaves:
BK,2BK
Pilot bore sheaves:3BK
QD sheaves:AK
QD Sheaves:
2AK,BK
QD Sheaves:
2BK,3BK
QD Sheaves:
3V
QD Sheaves:
5V
QD Sheaves:
8V
QD Sheaves:
A-B
QD Sheaves:
C
QD
Bushings
TB Sheaves:
3V
TB Sheaves:
5V
TB Sheaves:
8V
TB Sheaves:
A-B
TB Sheaves:
C
TB Sheaves:
Tape Bore Size
MTO Pilot
Bore Sheaves
Tolerances &
Diagrams
Adjustable Pilot
Bore Sheaves
Coupling
Dimension

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