65 Design Parameter Value Nom. Output Speed (rpm) 1500 Max. Input Speed (rpm) 1700 Max. Axial Load on Input (N)* 5250 Max. Axial Load on Output (N)* 9000 Max. Radial Load on Input (N)* 10500 Max. Radial Load on Output (N)* 18000 Efficiency (%) ≥ 98 Unit weight (kg) 193.3 Min. Operating Temperature (°C) - 10 Max. Operating Temperature (°C) + 90 Protection Rating IP65 Noise (dB)** ≤ 83 Ratio Nom. Output Torque (Nm) Max. Acceleration Torque (Nm) Mass Moment of Inertia (kg/cm²) ~ SINGLE STAGE ~ 1:1 3200 4800.0 799.12 AT-M SERIES ONLY AVAILABLE IN 1:1 RATIO AT2804M = 1 Input, 3 Output (Opposite Rotation) AT280LM = 1 Input, 2 Output (Opposite Rotation) AT280RM = 1 Input, 2 Output (Opposite Rotation) For more information, see rotation directions on page 66 * Applied at centre of in/output shaft (Length/2). For more information, see pages 68 & 69 ** Based on 1:1 ratio @ 1500 rpm without load Backlash ~ SINGLE STAGE ~ ≤ 6 arcmin Shaft Option Order Code Smooth Shaft S1 Keyed Shaft S2 Other Options Available Order Code Food Grade Grease on request High or Low Temperature Grease on request NOTE: Example gearbox shown with S2 shaft option AT = Stainless steel ATB = Blackened carbon steel Dimensions and ratings of AT & ATB series are identical ALL BEVEL GEARBOXES ARE SUPPLIED LUBRICATED FOR LIFE WITH NYE® NYOGEL 792D SYNTHETIC GREASE AND CONFORM WITH ATEX EQUIPMENT-GROUP II CATEGORY 2 AS STANDARD TEL: 01827 288122 sales@wmh-trans.co.uk FAX: 01827 253390 www.wmh-trans.co.uk 60 k6 280 280 230 118 25 10 2 110 140 110 220 4x M16 x 36 18 x 11 x 100 h9 KEY M20 x 2.5 x 42 280 137 25 2 275 h7 110 140 220 176 BCD 4x M16 x 36 6x M10 x 15 275 h7 275 h7 200 198 g6 60 k6 110 167 277 4x M16 x 36 D E F C 1 2 3 4 B A 3 2 1 5 C D 4 6 7 8 A B AT280RM-1 WEIGHT: A3 SHEET 1 OF 1 SCALE:1:10 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 AT280M – Opposite Rotation Spiral Bevel Range – Stainless or Steel