Worms and Worm Wheels worm 7 .0 FAX: 01827 253390 www.apex-trans.co.uk TEL: 01827 253340 sales@apex-trans.co.uk Design Parameter Value Helix Angle L/H 19° 31’ 42” Pressure Angle 20° Tooth Quality Q7 e25 Tooth Finish Case Hard + Ground Material 16MnCr5 (1.7131) Hardness 58~62 HRC MOD Face Width (B) Tooth Number PCD Ø D BORE Ø H6 HUB Ø h8 Length (L) K1 K2 Order Code 2 28 20 42.441 46.441 19 30 56 6 12.3 125-120-920 22 36 56 6 13.8 125-220-220 21 44.563 48.563 22 36 56 6 13.8 125-220-221 22 46.686 50.686 19 30 56 6 12.3 125-120-922 22 36 56 6 13.8 125-220-222 25 53.052 57.052 19 30 56 6 12.3 125-120-925 22 36 56 6 13.8 125-220-225 28 59.418 63.418 19 30 56 6 12.3 125-120-928 22 36 56 6 13.8 125-220-228 30 63.662 67.662 22 36 56 6 13.8 125-220-230 30 50 60 8 18.3 125-320-030 32 55 65 10 19.3 125-320-230 32 67.906 71.906 22 36 56 6 13.8 125-220-232 39 82.761 86.761 32 55 65 10 19.3 125-320-239 3 28 20 63.662 69.662 22 36 56 6 13.8 125-230-220 25 44 60 8 15.8 125-230-520 30 50 60 8 18.3 125-330-020 32 55 65 10 19.3 125-330-220 22 70.028 76.028 32 55 65 10 19.3 125-330-222 40 62 65 12 23.3 125-430-022 25 79.578 85.578 22 36 56 6 13.8 125-230-225 25 44 60 8 15.8 125-230-525 30 50 60 8 18.3 125-330-025 32 55 65 10 19.3 125-330-225 35 55 65 10 20.8 125-330-525 40 62 65 12 23.3 125-430-025 28 89.127 95.127 32 55 65 10 19.3 125-330-228 40 62 65 12 23.3 125-430-028 32 101.859 107.859 32 55 65 10 19.3 125-330-232 40 62 65 12 23.3 125-430-032 4 40 18 76.394 84.394 32 55 75 10 19.3 125-340-218 21 89.127 97.127 32 55 75 10 19.3 125-340-221 35 55 75 10 20.8 125-340-521 40 62 75 12 23.3 125-440-021 45 68 75 14 26.3 125-440-521 24 101.859 109.859 32 55 75 10 19.3 125-340-224 35 55 75 10 20.8 125-340-524 40 62 75 12 23.3 125-440-024 45 68 75 14 26.3 125-440-524 55 80 80 16 31.8 125-540-524 25 106.103 114.103 55 80 80 16 31.8 125-540-525 18 Case hardened gears are supplied with bore and key size specified below and cannot be modified Keyway aligned with tooth root within +/- 0.5mm Precision Helical Pinions Case Hardened – With Hub HUB B L D K2 K1 PCD BORE A B L C D 0.05 A 0.01 A D E F C 1 2 3 4 B A 3 2 1 5 C D 4 6 7 8 A B 125-330-020 WEIGHT: A3 SHEET 1 OF 1 SCALE:1:5 DWG NO. TITLE: REVISION DO NOT SCALE DRAWING MATERIAL: DATE SIGNATURE NAME DEBUR AND BREAK SHARP EDGES FINISH: UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN MILLIMETERS SURFACE FINISH: TOLERANCES: LINEAR: ANGULAR: Q.A MFG APPV'D CHK'D DRAWN K2 K1 PCD BORE D E F C 1 2 B A 2 1