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Created with Sketch. Created with Sketch.

Belt Chart

20 Series: 3/4" Top Width

30° Symmetric (15° + 15°) (20C & 21D-6" & 21D-T') .40 Thick Kevlar Type

20driven-belt.gif

RECOMMENDED BELT SPECIFICATIONS

 

C.D. SETTING

   

Part #

6" Dia.Driven 7" Dia.Driven Belt C.C. Fractional Equlv.
203578 6 15/16 - 7 No Fit 27.36 27 23/64
203579 7 1/8 - 7 3/16 6 1/4 - 6 5/16 28.32 28 21/64
203580 7 9/16 - 7 5/8 6 13/16 - 6 7/8 29.28 29 9/32
203581 8 3/16 - 8 1/4 7 5/16 - 7 3/8 30.25 30 1/4
203582 8 11/16 - 8 3/4 7 3/4 - 7 13/16 31.23 31 15/64
203583 9 3/16 - 9 1/4 8 5/16 - 8 3/8 32.20 32 13/64
203584 9 5/8 - 9 11/16 8 3/4 - 8 13/16 33.18 33 11/64
203585 9 15/16 - 10 9 3/16 - 9 1/4 33.78 33 25/32
203586 10 3/4 - 10 13/16 9 13/16 - 9 7/8 35.14 35 9/64
203587 11 11/16 - 11 3/4 10 15/16 - 11 37.11 37 7/64
203588 13 1/16 - 13 1/8 12 1/8 - 12 3/16 39.77 39 25/32

 

30 Series: 3/4" Top Width  20 - 1/2" Asymmetrical


(30 & 31D-6" & 31D-7") .40 Thick  Kevlar Type

30driven-belt.gif
 

RECOMMENDED BELT SPECIFICATIONS

C.D. SETTINGS

 Belt
Fractional
 Part # 6" Dia Driven. 7" Dia. Driven  O.C.
 Equiv.
 203589 6 5/8 - 6 11/16 No Fit 27.03
27
1/32
 203590 7 1/8 - 7 3/16 6 1/4 - 6 5/16 28.32
28 21/64
 203591 7 9/16 - 7 5/8 6 13/16 - 6 7/8 29.28
29
9/32
 203592 8 3/16 - 8 1/4 7 5/16 - 7 3/8 30.25
30 1/4
 203593 8 11/16 - 8 3/4 7 3/4 -7 13/16 31.23
31 15/64
 203594 9 3/16 - 9 1/4 8 5/16 - 8 3/8 32.20
32 13/64
 203595 9 5/8 - 9 11/16 8 3/4 - 8 13/16 33.18
33
11/64
 203596 9 15/16 - 10 9 3/16 - 9 1/4 33.78
33 25/32
 203597 10 3/4 - 10 13/16 9 13/16 - 9 7/8 35.14
35 9/64
 203598 11 11/16 - 11 3/4 10 15/16 - 10 15/16 37.11
37
7/64
 203599 13 1/16 - 13 1/8 12 1/8 - 12 3/16 39.77
39 25/32

 *Always run the 2-1/2"
side nearest the engine (the 2-1/2" side appears nearly flat and must be mated to the like appearing sheave half).

 

40/44D Series - Symmetric

.45 Thick Kevlar Type

40-44dbelt.gif
RECOMMENDED BELT SPECIFICATIONS
Part #
# Marked on belt
40 C.D.
44 C.D.
Belt O.C.
 40-75 
7-1/4
clear.gif 
31.950
 40-80 
7-7/8
 
32.900
 40-85 
8-3/16" 
 
33.870
 40-90 
8-5/8" 
7-5/8"
34.830
 40-95  
9-3/8" 
8-3/16"
35.800
 40-100 
9-3/4"
8-11/16"
36.780
 40-105 
10-1/4"
9-3/16"
37.750
 40-110 
10-1/2"
9-5/8"
38.650
 40-120 
11-1/2"
10-9/16" 
40.500
 40-130 
12-5/8"
11-11/16" 
42.660
40-140  
13-3/4"
12-5/8"
44.530