WE RECOMMEND THE USE OF CONTINUOUS GREASE OR OIL LUBRICATION FOR ALL RACK & PINION SYSTEMS – LIFE TIME CALCULATIONS AVAILABLE ON REQUEST Worms and Worm Wheels worm 7 .0 FAX: 01827 253390 www.apex-trans.co.uk TEL: 01827 253340 sales@apex-trans.co.uk MOD Tooth Number X * B Max Torque (Nm) *** Resultant Speed (rpm) Based on 2.5 m/s Travel Order Code Without Preload With Max. Preload 2 22 0.330 25 132 66 1071 123-020-122 3 14 0.239 30 147 74 1071 123-030-114 4 13 0.353 40 305 153 865 123-040-113 5 14 0.573 50 594 297 643 123-050-114 MOD Tooth Number X * B BCD PCD D1 D2 D3 D4 D5 D6 F H L L1** T N x Ø ° Order Code 2 22 0.330 25 63 48 6.6 11 40 36 52 80 10 4 40 23 6.4 16 x 22.5 123-020-122 3 14 0.239 30 63 46 6.6 11 40 36 52 80 10 4 45 23 6.4 16 x 22.5 123-030-114 4 13 0.353 40 80 58 9 15 50 45 66 100 13 6 58 38 8.6 12 x 30 123-040-113 5 14 0.573 50 125 80 11 18 80 65 90 160 20 6 75 38 10.6 12 x 30 123-050-114 Design Parameter Value Helix Angle L/H 19° 31’ 42” Pressure Angle 20° Tooth Quality Q6 e25 Tooth Finish Case Hard + Ground Material 16MnCr5 (1.7131) Hardness 58~62 HRC 16 D4 D5 D6 N x BCD PCD FLANGE DIMENSIONS ACCORDING TO ISO 9409 C D 6 7 8 A B 123-020-122 WEIGHT: A3 SHEET 1 OF 1 SCALE:1:5 DWG NO. TITLE: REVISION DO NOT SCALE DRAWING MATERIAL: DATE SIGNATURE ME DEBUR AND BREAK SHARP EDGES FINISH: SPECIFIED: N MILLIMETERS L F H D3 D4 D5 L1 ±1.5 D2 D1 T B D2 D1 T F B D3 D4 H L L1 ±1.5 D5 D6 N x BCD PCD FLANGE DIMENSIONS ACCORDING TO ISO 9409 D E F C 1 2 3 4 B A 3 2 1 5 C D 4 6 7 8 A B 123-020-122 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 For Anti-Backlash Applications Helical Double Pinions * X = Addendum modification factor ** Dimension L1 can vary due to the nature of the preload adjustment mechanism *** Stated values based on 20,000 hours service life with continuous grease lubrication * X = Addendum modification factor Only one half of the double pinion transmits power at any given time hence all calculations should be based on half of the face width (B) D3 D1 D2 T D5 F L H B D3 D1 D2 T F H L B D5 D E F C 1 2 3 4 B A 3 2 1 5 4 NAM UNLESS OTHERWISE S DIMENSIONS ARE IN SURFACE FINISH: TOLERANCES: LINEAR: ANGULAR: Q.A MFG APPV'D CHK'D DRAWN