Page 1 - SCS Gearbox Quick-Change Gear Chart

SHOP HERE ONLINE
NEED HELP? 800-882-7231

SCS™ Gearbox Offers Two (2) Different Versions

of 10 Spline Quick-Change Gears

SCS™ Professional Series Quick-Change Gears
SCS™ Professional Series gears are aircraft grade steel for maximum
Professional Series strength. Each gear has a shaved finish to minimize backlash and run out,
and is broached for 10-spline shaft. A 5-step heat treating process yields
maximum gear life for high stress applications. Gears have a black oxide
finish, and lightened faces to reduce rotating weight without sacrificing
strength.

SCS™ Sportsman Series Quick-Change Gears

SCS™ Sportsman gears are quality gears priced for the sportsman racer.
These gears are un-lightened 10-spline gears are CNC crown hobbed from
Sportsman Series 8620 material, then heat-treated and REM® finished prior to shipment.

SCS Gearbox™ Professional and Sportsman 10 Spline Quick-Change Gear Ratios

Professional Sportsman No. 4.11 R & P 4.86 R & P Professional Sportsman No. 4.11 R & P 4.86 R & P
Set Number Set Number of Set Number Set Number of
Teeth HI LO HI LO Teeth HI LO HI LO
SCS01 SCS101 21 / 21 4.11 4.11 4.86 4.86 SCS22 SCS1022 19 / 25 5.41 3.12 6.39 3.69
SCS02 SCS102 27 / 28 4.26 3.96 5.04 4.68 SCS16 SCS1016 24 / 32 5.48 3.08 6.48 3.65
SCS05 SCS105 24 / 25 4.28 3.94 5.07 4.66 SCS10 SCS1010 20 / 27 5.55 3.04 6.56 3.60
SCS15 SCS1015 19 / 20 4.33 3.90 5.12 4.61 SCS34 SCS1034 19 / 26 5.63 3.00 6.65 3.55
SCS15K SCS1015K 15 / 16 4.38 3.85 5.18 4.56 SCS14 SCS1014 23 / 32 5.72 2.95 6.76 3.50
SCS26 SCS1026 27 / 29 4.41 3.83 5.22 4.52 SCS14K SCS1014K 20 / 28 5.76 2.93 6.81 3.47
SCS06 SCS106 23 / 25 4.46 3.78 5.28 4.47 SCS35 SCS1035 17 / 24 5.80 2.91 6.86 3.44
SCS25 SCS1025 20 / 22 4.52 3.74 5.35 4.42 SCS32K SCS1032K 23 / 33 5.89 2.87 6.97 3.39
SCS12 SCS1012 26 / 29 4.58 3.68 5.42 4.36 SCS24 SCS1024 20 / 29 5.96 2.83 7.04 3.35
SCS07 SCS107 23 / 26 4.64 3.63 5.49 4.30 SCS36 SCS1036 17 / 25 6.04 2.80 7.15 3.30
SCS07K SCS107K 21 / 24 4.69 3.58 5.54 4.23 SCS37 SCS1037 23 / 34 6.07 2.78 7.18 3.29
SCS17 SCS1017 19 / 22 4.76 3.55 5.63 4.19 SCS23 SCS1023 18 / 27 6.16 2.74 7.29 3.24
SCS08K SCS108K 17 / 20 4.83 3.49 5.71 4.13 SCS21 SCS1021 17 / 26 6.28 2.69 7.43 3.18
SCS08 SCS108 22 / 26 4.85 3.48 5.75 4.11 SCS27 SCS1027 22 / 34 6.35 2.66 7.51 3.15
SCS19 SCS1019 21 / 25 4.89 3.45 5.78 4.08 SCS43 SCS1043 16 / 25 6.42 2.63 7.59 3.11
SCS09K SCS109K 25 / 30 4.93 3.42 5.83 4.05 SCS28 SCS1028 19 / 30 6.49 2.60 7.67 3.06
SCS09 SCS109 19 / 23 4.97 3.39 5.88 4.01 SCS29 SCS1029 15 / 24 6.58 2.57 7.77 3.04
SCS11 SCS1011 22 / 27 5.04 3.35 5.97 3.96 SCS30 SCS1030 16 / 26 6.67 2.53 7.89 2.99
SCS03 SCS103 25 / 31 5.10 3.31 6.03 3.92 SCS41 SCS1041 17 / 28 6.77 2.49 8.00 2.95
SCS13 SCS1013 20 / 25 5.14 3.29 6.08 3.89 SCS31 SCS1031 21 / 35 6.85 2.46 6.10 2.91
SCS18 SCS1018 19 / 24 5.19 3.25 6.13 3.85 SCS33K SCS1033K 16 / 27 6.94 2.43 8.20 2.88
SCS04K SCS104K 18 / 23 5.26 3.21 6.21 3.80 SCS33 N/A 17 / 29 7.00 2.41 --- ---
SCS04 SCS104 24 / 31 5.31 3.18 6.28 3.76 SCS31K N/A 14 / 24 7.05 2.39 --- ---
SCS20 SCS1020 20 / 26 5.34 3.16 6.32 3.74 SCS30K N/A 15 / 26 7.12 2.37 --- ---