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Super-Screw® Selection Guide

The four inputs needed to order a Super-Screw® splice are below. The complete part number will be in this order: “A – B – C – D”

A) Super-Screw Series. See Series Selection Guide below for selecting the appropriate series based on PIW and minimum pulley diameter.

B) Rubber Compound. See Rubber Compound Selection Guide below for selecting the appropriate rubber compound.

C) Belt Thickness After Skiving. See Thickness After Skive Guide below for selecting the correct screw.

D) Splice Length.

  • Super-Screw® Evolution has an 18° bias installation requirement, so splice length must be longer than belt width. The formula for length to order Evolution is (Belt Width) × (1.067) then round down to the nearest inch.
  • Super-Screw® Original has a 5° bias installation requirement, so splice length required is equal to belt width (example: order a 36” splice for a 36” wide belt).
  • You can also refer to the Splice Length Selection Guide below for total splice length needed for common belt widths.

Example

Belt Tension Rating: 330 PIW (63 Series) Select from Row “A” in Super-Screw Series Selection Guide
Rubber Compound: Gravel (Abrasion Resistant = AR) Select from Column “B” in Rubber Compound Selection Guide
Belt Thickness After Skive: 5/16” (8mm) Select from Column “C” in Belt Thickness After Skive Guide
Belt Width: 36” (63 Series is Evolution so 36 x 1.067 = 38” splice length) Select from Column “D” under 63/65 header in Splice Length Selection GuideOrdering Number: 63-AR-8-38 

 

SUPER-SCREW® SERIES SELECTION GUIDE (A)

Super-Screw Series (A) 35 63 65* 80 85* 100 105* 180 200
Maximum Belt Tension (PIW) 200 360 360 450 450 650 650 1030 1200
Minimum Pulley Diameter (Inches) 6" 8" 8" 10" 13-3/4" 15-3/4” 15-3/4” 16” 20”
Belt Thickness After Skiving (Inches) 5/32-1/2" 5/32-1/2" 5/32-1/2" 5/32-1/2" 5/32-19/32" 5/32-19/32" 5/32-19/32" 13/16" 9/32-3/4"
Top of Splice Thickness (Inches) 5/32" 3/16" 15/64” 1/4” 9/32” 9/32” 11/32” 9/32" 11/32"
Bottom of Splice Thickness (Inches) 5/32" 11/64" 11/64” 3/16” 7/32” 7/32” 7/32” 15/64" 15/64"
Overall Width of Splice 2 3/8" 4 3/8" 4 3/8" 6 5/16" 5 7/8" 5 7/8" 5 7/8" 10 1/2" 10 1/2"
Full Roll Size† 984" (25 meter) 984” (25 meter) 984” (25 meter) 984” (25 meter) 984” (25 meter) 984” (25 meter) 984” (25 meter) 590” (15 meter) 590” (15 meter)
*65, 85, 105 (“5” series) have 3-4mm extra rubber in the top of the splice but do not provide additional strength over the 63, 80, and 100, respectively
†White/Food Grade compound is only available in 79” (2 meter) lengths

 

 

RUBBER COMPOUND SELECTION GUIDE (B)

RUBBER COMPOUND (B) COLOR ON SPLICE STRIPE SPECS APPLICATIONS
AR
(Abrasion Resistant)		 White Lowest DIN Rating (most resistant to abrasion) Sand, Gravel, Quarries, Cement, Abrasive Applications
HOT Orange Heat Resistant up to 392°F High-Temp Applications from 170° to 392F. Clinker, Foundries, Hot Sand
MOR
(Moderately Oil Resistant)		 Green Moderately Oil Resistant Wood, Pulp & Paper, Sawmills
SS
(Stainless Steel)		 White, Green or Blue Outlined in Yellow AR, OR, or MSHA rubber compound with 316 stainless screws and internal hardware Corrosive Environments, Chemical Fertilizer Plants, Chemical Plants, some Mining Applications
MSHA
(Fire-Resistant/Anti-Static, Anti-Sparking)		 Blue MSHA/Fire-Resistant/Anti-Static Underground Mining, Coal, Silos
White
(FDA/USDA Food Grade)		 Splice all White FDA/USDA Food Grade Food
AR/SB
(Bare back/Friction Back/Sliding Bed)		 White with Bottom Ply Exposed Abrasion resistant rubber compound with an extra ply vulcanized onto bottom. Where an impact bed is present. Many times a standard AR will work. Use this for continuous sliding bed applications and on bare back belts
MOR BB/FB/SB
(Bare back/Friction Back/Sliding Bed)		 Green with Bottom Ply Exposed MOR rubber compound with an extra ply vulcanized onto bottom. Where an impact bed is present. Many times a standard MOR will work. Use this for continuous sliding bed applications and on bare back belts

 

 

THICKNESS AFTER SKIVE GUIDE (C)

BELT THICKNESS AFTER SKIVE*
in. mm mm Rounded Up
1/8” 3.2 4
3/16” 4.8 6
1/4” 6.4 8
5/16” 7.9 8
3/8” 9.6 10
7/16” 11.1 12
1/2” 12.7 14
9/16” 14.3 16
5/8” 15.9 16
11/16” 17.5 18
3/4” 19.1 20

 

 

SPLICE LENGTH SELECTION GUIDE (D)

BELT WIDTH 35 SERIES 63 SERIES 65 SERIES 80 SERIES 85 SERIES 100/105 SERIES 180 SERIES 200 SERIES
in. mm SPLICE LENGTH NO. OF SCREWS SPLICE LENGTH NO. OF SCREWS SPLICE LENGTH NO. OF SCREWS SPLICE LENGTH NO. OF SCREWS SPLICE LENGTH NO. OF SCREWS SPLICE LENGTH NO. OF SCREWS SPLICE LENGTH NO. OF SCREWS SPLICE LENGTH NO. OF SCREWS
12 300 12 28 12 56 12 56 12 84 12 94 12 94 12 80 12 80
18 450 19 44 19 88 19 88 19 134 18 140 18 140 18 120 18 120
24 600 25 58 25 116 25 116 25 176 24 186 24 186 24 160 24 160
30 750 32 74 32 148 32 148 32 224 30 232 30 232 30 200 30 200
36 900 38 88 38 176 38 176 38 266 36 278 36 278 36 240 36 240
42 1050 44 102 44 204 44 204 44 308 42 324 42 324 42 280 42 280
48 1200 51 118 51 236 51 236 51 358 48 370 48 370 48 320 48 320
54 1350 57 132 57 264 57 264 57 400 54 416 54 416 54 360 54 360
60 1500 64 148 64 296 64 296 64 448 60 462 60 462 60 400 60 400
72 1800 76 176 76 350 76 350 76 532 72 556 72 556 72 480 72 480
84 2100 89 206 89 410 89 410 89 624 84 648 84 648 84 560 84 560
120 3000 128 294 128 588 128 588 128 896 120 924 120 924 120 800 120 800