BOTH ENDS OF EACH RACK ARE MACHINED TO ALLOW FOR CONTINUOUS MOUNTING WE RECOMMEND THE USE OF A MOUNTING PIECE AND GREASE OR OIL LUBRICATION Worms and Worm Wheels worm 7 .0 FAX: 01827 253390 www.apex-trans.co.uk TEL: 01827 253340 sales@apex-trans.co.uk MOD Length (mm) Tooth Number B H HA (PCD) HB L1 L3 A1 A2 D1 D2 D3 C +0.5 T Mass (kg) Order Code 2 960 144 19 19.5 17.5 7.5 60 6.7 10 30 4.5 7.5 4.5 1 5.3 2.7 143-920-110 2 480 72 1.3 143-920-105 2 960 144 24 24.5 22.5 10 60 8.5 10 30 6 9.5 6 1 8.5 4.2 143-920-210 2 480 72 2.1 143-920-205 3 960 96 29 29.75 26.75 11.5 60 10.3 10 30 7 11 7 2 9 5.6 143-930-210 3 480 48 2.8 143-930-205 4 960 72 39 39.75 35.75 14 80 13.8 20 40 10 15 10 2 9 10.5 143-940-310 4 480 36 5.2 143-940-305 4 960 72 39 48.75 44.75 17 80 13.8 20 40 10 15 10 2 9 13.0 143-940-410 4 408 36 6.5 143-940-405 4 840 63 49 58.0 54.0 22.5 105 17.4 30 60 14 20 14 2 13 17.3 143-940-510 MOD Length (mm) Tooth Number B H HA (PCD) HB L1 L3 A1 A2 D1 D2 M1 M2 C +0.5 T Mass (kg) Order Code 2 960 144 19 19.5 17.5 7.5 60 6.7 10 30 5.8 10 M4 8 1 6 2.7 143-820-110 2 960 144 24 24.5 22.5 10 60 8.5 10 30 7 11 M5 11 1 7 4.2 143-820-210 3 960 96 29 29.75 26.75 11.5 60 10.3 10 30 10 15 M6 13.5 2 9 5.6 143-830-210 4 960 72 39 39.75 35.75 14 80 13.8 20 40 12 18 M8 16 2 12 10.5 143-840-310 4 960 72 39 48.75 44.75 17 80 13.8 20 40 12 18 M8 16 2 12 13.0 143-840-410 4 840 63 49 58.0 54.0 22.5 105 17.4 30 60 14 20 M12 25 2 13 17.3 143-840-510 12 Helix Angle Pressure Angle Tooth Quality Tooth Finish Material Hardness R/H 19° 31’ 42” 20° Q6 h23 Ind. Hard + Ground C45 (1.0503) 50~55 HRC Precision Helical Racks Ground Contact Surfaces – For Linear Guides L1 L A1 A2 L1 L3 M2 H M1 HA HB C x 45 D2 D1 T B HB D E F C 1 2 3 4 B A 3 2 1 5 4 6 7 8 143-830-210 WEIGHT: A 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 180° 90° A1 A2 L L1 L1 L3 H D3 B HA HB D2 C x 45 T D1 HB D E F C 1 2 3 4 B A 3 2 1 5 4 6 7 8 143-930-210 WEIGHT: A 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