POWER TRANSMISSION

CONTENTS 9709 General Description 1 Unit Designations & Ordering 2 Design Features Shaft Sealing Arrangements Explanation and use of Ratings and Service Factors 3-4 5 6-9 Selection Procedure 10 - 12 Exact Ratios 13 - 14 Lubrication 15 - 17 Mounting Versions 18 Outputshaft Options 19 Outputbore Options 20 Series X Couplings 21 REDUCER Overhung & Axial Loads on Shafts 23 - 26 Moments of Inertia 27 - 28 Ratings - Input Power / Output Torque 29 - 88 Dimension Sheets - Speed Reducers 89 - 106 Customer Outputshaft and Shrink Disk Details 107 - 108 Cooling Coil Connections 109 Holdbacks 110 Torque Arm...

GENERAL DESCRIPTION 9606 Radicon Series H Series H gear units are available in in-line and right angle versions in single, double, triple and quadruple reduction gear stages having a maximum power capacity exceeding 8300 kW. The modular design and construction of the Series H offers many engineering and performance benefits including a high degree of interchangeability of parts and sub assemblies. This in turn provides considerable economies of production whilst maintaining the highest standard of component integrity Single reduction Foot mounted parallel shafts * H 1 1 4 0 Double reduction Shaft...

UNIT DESIGNATIONS & ORDERING 9606 1 2 B 3 3 4 5 6 7 M 2 8 0 * EXAMPLE OF TYPE 1- TYPE OF GEARS 5,6,7- SIZE OF UNIT H B 2- 1 - HELICAL GEARS ONLY 4 THROUGH 4 - HELICAL & BEVEL HELICAL GEARS NO OF REDUCTIONS 1 THROUGH 4- TYPE OF UNIT 3 M 3- 0 REDUCER UNIT - MOTORISED UNIT VERSION - FOOT MOUNTED S - SHAFT MOUNTED S F - FOOT/SHAFT MOUNTED INFORMATION REQUIRED WHEN ORDERING UNITS PRIME MOVER - Type - electric motor or engine, for example 4 cylinder internal combustion engine - Power rating in kW - Output speed. if variable, indicate speed range and frequency of variation - Dimensions of prime mover...

DESIGN FEATURES 9606 Shaft Mounted Units Shaft mounted units are of two designs, the first of which is mounted on the driven machine shaft extension and connected to the foundation by torque arm, supplied as an optional extra. Additionally, the foot/shaft design is available for mounting on a baseplate with motor and coupling, the complete assembly being mounted on the driven machine shaft extension and connected to the foundation by a torque arm. All gear units are fitted with a 'shrink disc' device to provide positive clamping on the driven machine shaft extension. It is positioned on the input...

DESIGN FEATURES 9707 Gears High quality alloy case hardening materials provide long life wear resistance and fatigue strength. Profile ground single helical gears and spiral bevel gears lapped in pairs ensure high standards of accuracy, surface finish and quiet running characteristics. Helical gears are fitted in parallel shaft units with shafts at right angles incorporate spiral bevel and helical gears. Bearings Roller bearings are used throughout. Gearcases Gearcases are of rigid cast iron construction with modern styling. Casings are split in the horizontal plane. Inspection covers are provided...

SHAFT SEALING ARRANGEMENTS 9706 SHAFT SEALING ARRANGEMENTS OF HORIZONTAL MOUNTED GEAR UNITS Oil seal lip Labyrinth and Oil seal Labyrinth and Flinger Labyrinth, Flinger and Oil seal Type Shaft Unit Size 140 160 180 200 225 250 280 315 355 400 450 Input B3 Ouput <- - - - - - - - - - - - - - - - - - - - - - - - - Labyrinth and Oil seal - - - - - - - - - - - - - - - - - - - - - - - - - - > <- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Oil lip seal - - - - - - - - - - - - - - - - - - - - - - - - - - - - - > Ouput <- - - - - - - - - - - - - - - - - - - - - - - - - Labyrinth and Oil...

EXPLANATION AND USE OF RATINGS AND ASSOCIATED RATING FACTORS 9709 1.0 Basic Ratings The catalogue mechanical and thermal rating capacity of the Series H gear units are based on a standard set of service operating conditions. The conditions are: i) The unit operates at a uniform absorbed power for 10 hours per day and with no more than one unidirectional start per hour at twice the absorbed power at input shaft to the gear unit. ii) It operates in a large indoor space at an ambient temperature of 20oC with ambient air velocity of 1.4m/sec. iii) The sump bulk oil temperature is 110oC when transmitting...

EXPLANATION AND USE OF RATINGS AND ASSOCIATED RATING FACTORS 9606 Driven Machine type of load Table 2. Load Classification by Applications Cranes main hoists bridge travel trolley travel U U Crusher ore stone sugar H H H Dredges cable reels conveyors cutter head drives jig drives manoeuvring winches pumps screen drive stackers utility winches M M H H M M H M M = Uniform load M = Moderate shock load H = Heavy shock load = Refer to David Brown Driven Machine type of load Agitators pure liquids liquids and solids liquids-variable density U M M Blowers centrifugal lobe vane U M U Brewing and distilling...

EXPLANATION AND USE OF RATINGS AND ASSOCIATED RATING FACTORS 9709 2.4 Selection of Gear Unit Size Knowledge of the type of unit (Section 2.1) and the required power (section 2.3) allows selection of the size of gear unit required from the appropriate gear unit rating table pages 29 to 88. 2.5 Adjustment of Mechanical Rating for the Service Operating Conditions Adjustment for duration of running has been done via the mechanical service factor Fm. The other adjustment required is for the number of starts or if unit is reversing, this factor Fs is obtained from table 3. Table 3. Number of Starts...

9709 Table 4. Ambient Temperature Adjustment Factor (Fa) (1) Unit Type Nominal Ratios Covered H1 H1 From 1.22 2.49 1.22 5.60 5.60 3.38 1.84 9.30 5.60 25.6 25.6 10.3 5.06 14 14 2.49 1.22 10.3 5.60 42.5 31.4 25.6 11.4 5.06 34.7 25.6 14.0 2.49 11.4 70.6 57.7 47.1 12.6 70.6 52.1 38.4 H2 B2 H1 H2 H3 B2 B3 H1 H2 H3 B2 B3 H1 H2 H3 B2 B3 To Including 2.25 3.05 1.66 8.40 9.30 5.06 2.49 25.6 9.30 38.4 28.4 18.9 10.3 31.4 23.2 5.06 2.25 25.6 10.3 63.8 52.1 42.5 18.9 11.4 63.8 47.1 34.7 5.06 25.6 130 130 130 18.9 95.7 95.7 95.7 EXPLANATION AND USE OF RATINGS AND ASSOCIATED RATING FACTORS Ambient Temperature...