Page 433 - 2018 Racecar Engineering Open Wheel Parts and Accessories Catalog

8500 Series 10-Spline Quick Change Gears (Sprint Gears)
Winters 10-spline, Quick Change Gears, for use with 10" dia. ring gear applications. Gears are 1-3/8" wide,
machined, broached and hobbed from quality SAE 8620 steel by Winters technicians. Sets 50 thru 58 are for
limited horsepower applications only. Winters also has an attractive poster (WINPOSTER10) which displays all
available gear sets and ratios, and is an ideal reference chart for the wall of any race shop.
4.12 Axle Ratio Low High 4.86 Axle Ratio 4.12 Axle Ratio Low High 4.86 Axle Ratio
Gear (8-33 Teeth) Spur No. Of Spur (7-34 Teeth) Gear (8-33 Teeth) Spur No. Of Spur (7-34 Teeth)
Part No. Set No. Low High Ratio Teeth Ratio Low High Part No. Set No. Low High Ratio Teeth Ratio Low High
WIN8501 1 4.11 4.11 1.00 21/21 1.00 4.86 4.86 WIN8514 14 2.95 5.72 1.39 23/32 0.71 3.50 6.76
WIN8502 2 3.96 4.26 1.03 27/28 0.96 4.68 5.04 WIN8514A 14A 2.93 5.76 1.40 20/28 0.71 3.47 6.81
WIN8505 5 3.95 4.28 1.04 25/25 0.96 4.66 5.07 WIN8535 35 2.91 5.80 1.41 17/24 0.70 3.44 6.86
WIN8515 15 3.91 4.32 1.05 19/20 0.95 4.63 5.10 WIN8532 32 2.89 5.85 1.42 19/27 0.70 3.42 6.90
WIN8526 26 3.83 4.41 1.07 27/29 0.93 4.52 5.23 WIN8532A 32A 2.87 5.89 1.43 23/33 0.70 3.39 6.97
WIN8506 6 3.78 4.46 1.08 23/25 0.92 4.47 5.28 WIN8524 24 2.83 5.96 1.45 20/29 0.69 3.35 7.04
WIN8525 25 3.74 4.52 1.10 20/22 0.90 4.42 5.35 WIN8536 36 2.80 6.04 1.47 17/25 0.68 3.30 7.15
WIN8512 12 3.68 4.58 1.11 26/29 0.89 4.36 5.42 WIN8537 37 2.78 6.07 1.48 21/31 0.67 3.29 7.19
WIN8507 7 3.63 4.64 1.13 23/26 0.88 4.30 5.49 WIN8523 23 2.74 6.17 1.50 22/33 0.67 3.24 7.29
WIN8507A 7A 3.58 4.69 1.14 21/24 0.87 4.23 5.54 WIN8521 21 2.70 6.27 1.52 19/29 0.65 3.20 7.42
WIN8517 17 3.54 4.76 1.15 26/30 0.86 4.19 5.64 WIN8527 27 2.66 6.35 1.54 22/34 0.64 3.15 7.52
WIN8517A 17A 3.52 4.80 1.16 24/28 0.85 4.17 5.67 WIN8543 43 2.63 6.42 1.56 16/25 0.64 3.11 7.59
WIN8508A 8A 3.51 4.84 1.174 23/27 0.84 4.14 5.70 WIN8528 28 2.60 6.49 1.57 19/30 0.63 3.08 7.68
WIN8508 8 3.48 4.85 1.18 22/26 0.84 4.11 5.75 WIN8529 29 2.57 6.58 1.59 15/24 0.62 3.04 7.78
WIN8519 19 3.45 4.89 1.19 21/25 0.84 4.08 5.78 WIN8539 39 2.55 6.62 1.61 18/29 0.62 3.02 7.83
WIN8509A 9A 3.42 4.93 1.20 25/30 0.83 4.05 5.83 WIN8530 30 2.53 6.68 1.62 26/16 0.61 2.99 7.91
WIN8509 9 3.39 4.97 1.21 19/23 0.82 4.01 5.88 WIN8540 40 2.52 6.71 1.63 19/31 0.61 2.98 7.93
WIN8511 11 3.35 5.04 1.22 22/27 0.81 3.96 5.97 WIN8541 41 2.50 6.77 1.65 17/28 0.61 2.95 8.00
WIN8503 3 3.31 5.10 1.24 25/31 0.80 3.92 6.03 WIN8531 31 2.47 6.85 1.67 21/35 0.60 2.92 8.10
WIN8513 13 3.29 5.14 1.25 20/25 0.80 3.89 6.08 WIN8533 33 2.42 6.99 1.70 20/34 0.58 2.85 8.26
WIN8518 18 3.26 5.18 1.26 23/29 0.79 3.85 6.13 WIN8531A 31A 2.40 7.05 1.71 21/36 0.58 2.84 8.34
WIN8518A 18A 3.23 5.23 1.27 22/28 0.79 3.82 6.19 WIN8530A 30A 2.37 7.12 1.73 15/26 0.57 2.80 8.42
WIN8504A 4A 3.21 5.26 1.28 18/23 0.78 3.80 6.21 WIN8550 50 2.35 7.19 1.75 35/20 0.57 2.77 8.50
WIN8504 4 3.18 5.31 1.29 24/31 0.77 3.76 6.28 WIN8551 51 2.33 7.25 1.76 30/17 0.56 2.75 8.57
WIN8520 20 3.16 5.34 1.30 20/26 0.76 3.75 6.32 WIN8552 52 2.31 7.30 1.78 32/18 0.56 2.73 8.64
WIN8522 22 3.12 5.41 1.32 19/25 0.76 3.69 6.39 WIN8554 54 2.28 7.39 1.80 36/20 0.55 2.69 8.75
WIN8516 16 3.08 5.48 1.33 18/24 0.75 3.65 6.48 WIN8555 55 2.27 7.45 1.81 29/16 0.55 2.68 8.81
WIN8510 10 3.04 5.56 1.35 17/23 0.73 3.59 6.58 WIN8556 56 2.25 7.49 1.82 31/17 0.54 2.66 8.86
WIN8510A 10A 3.02 5.62 3.02 22/30 0.62 3.56 6.62 WIN8557 57 2.19 7.70 1.87 30/16 0.53 2.59 9.11
WIN8534A 34A 3.00 5.67 3.00 22/32 0.67 3.54 6.68 WIN8558 58 2.18 7.74 1.88 32/17 0.53 2.58 9.15
WIN8534 34 2.98 5.68 1.37 21/29 0.72 3.52 6.71
4400 Series 6-Spline Quick Change Gears (Midget Gears)
3.78 Axle Ratio 4.11 Axle Ratio 4.33 Axle Ratio
Gear Low Spur High Spur No. Of (9-34 Teeth) (9-37 Teeth) (9-39 Teeth)
Part No. Set No. Ratio Ratio Teeth Low High Low High Low High
WIN4401 1 1.000 1.000 24/24 3.78 3.78 4.11 4.11 4.33 4.33
WIN4402 2 0.958 1.043 23/24 3.62 3.94 3.94 4.29 4.15 4.52
WIN4403 3 0.920 1.087 23/25 3.48 4.11 3.78 4.47 3.98 4.71
WIN4403B 3B 0.895 1.118 17/19 3.38 4.22 3.68 4.59 3.87 4.84
WIN4403A 3A 0.880 1.136 22/25 3.33 4.30 3.62 4.67 3.81 4.92
WIN4404 4 0.846 1.182 22/26 3.20 4.47 3.48 4.86 3.66 5.12
WIN4405 5 0.808 1.238 21/26 3.05 4.68 3.32 5.09 3.50 5.36
WIN4405A 5A 0.792 1.263 19/24 2.99 4.77 3.25 5.19 3.43 5.47
WIN4406 6 0.778 1.286 21/27 2.94 4.86 3.20 5.28 3.37 5.57
WIN4424 24 0.767 1.304 23/30 2.90 4.93 3.15 5.36 3.32 5.65
WIN4425 25 0.750 1.333 18/24 2.84 5.04 3.08 5.48 3.25 5.77
WIN4407 7 0.741 1.350 20/27 2.80 5.10 3.04 5.55 3.21 5.85
WIN4423 23 0.727 1.375 16/22 2.75 5.20 2.99 5.65 3.15 5.95
WIN4408 8 0.714 1.400 20/28 2.70 5.29 2.94 5.75 3.09 6.06
WIN4409 9 0.696 1.438 16/23 2.63 5.43 2.86 5.91 3.01 6.22
WIN4410 10 0.682 1.467 15/22 2.58 5.54 2.80 6.03 2.95 6.35
WIN4411 11 0.667 1.500 18/27 2.52 5.67 2.74 6.17 2.89 6.50
WIN4412 12 0.655 1.526 19/29 2.48 5.77 2.69 6.27 2.84 6.61
WIN4413 13 0.652 1.533 15/23 2.47 5.80 2.68 6.30 2.82 6.64
WIN4414 14 0.636 1.571 14/22 2.41 5.94 2.62 6.46 2.76 6.80
WIN4415 15 0.625 1.600 15/24 2.36 6.05 2.57 6.58 2.71 6.93
WIN4416 16 0.615 1.625 16/26 2.33 6.14 2.53 6.68 2.66 7.04
WIN4417 17 0.600 1.667 18/30 2.27 6.30 2.47 6.85 2.60 7.22
WIN4418 18 0.591 1.692 13/22 2.23 6.40 2.43 6.96 2.56 7.33
WIN4418A 18A 0.571 1.750 16/28 2.16 6.62 2.35 7.19 2.47 7.58
WIN4419 19 0.560 1.786 14/25 2.12 6.75 2.30 7.34 2.42 7.73

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