BR Series G
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Series G Industrial Reducers Technical Up to - 1,860kW / 165,000 Nm Industrial Reducers CG-2.00GB1113

PRODUCTS IN THE RANGE Serving an entire spectrum of mechanical drive applications from food, energy, mining and metal; to automotive, aerospace and marine propulsion, we are here to make a positive difference to the supply of drive solutions. Series A Worm Gear units and geared motors in single & double reduction types Series BD Screwjack worm gear unit Series BS Worm gear unit Series C Right angle drive helical worm geared motors & reducers Series F Parallel angle helical bevel helical geared motors & reducers Series G Helical parallel shaft & bevel helical right angle drive gear units...

Certification is available for standard gearboxes and geared motors with badging displaying the CE Mark and the Ex mark, name and location of the manufacturer, designation of series or type, serial number, year of manufacture, Ex symbol and ATEX directive 94/9/EC (also known as ATEX 95 or ATEX 100A) and the CE Marking Directive are enforced in all EC member states. Compliance is compulsory for designers, manufacturers or potentially explosive atmospheres created by the presence of flammable gases, vapours, mists or dusts. Ex compliant standard gearboxes can be supplied against Groups Zones...

SERIES G CONTENTS PAGE General Description Unit Designations Design Features Explanation and use of Ratings and Service Factors Selection Procedure Unit Handings and Shaft Rotations Standard Shaft Sealing Arrangements Inputshaft Options Outputshaft Options Outputbore Options REDUCER Overhung & Axial Loads on Shafts Agitator Applications Parallel Shaft Units Moments of Inertia Exact Ratios Mechanical Ratings - Input Power / Output Torque Thermal Ratings Dimension Sheets - Speed Reducers Fan Cooling Right Angle Shaft Units Moments of Inertia Exact Ratios Mechanical Ratings - Input Power /...

SERIES G GENERAL DESCRIPTION Series G Series G gear units are available in parallel shaft helical units and right angle shaft bevel/helical units in double, triple and quadruple reduction gear stages having a maximum output torque of up to 162,000 Nm. Parallel shaft unit The modular design and construction of the Series G offers many engineering and interchangeability of parts and sub assemblies. This in turn provides considerable economies of production whilst maintaining the highest standard of component integrity. Adding to the range of power transmission geared motors this product takes...

SERIES G UNIT DESIGNATIONS 1 * THIS PAGE MAY BE PHOTOCOPIED ALLOWING THE CUSTOMER TO ENTER THEIR ORDER 20 - TORQUE ARM & GEARCASE FINISH - STD EXTREME CLIMATIC PAINT - STD EXTREME CLIMATIC PAINT + TORQUE ARM - SPECIAL - CAST IRON - FABRICATED STEEL CASE See pages 26 for parallel shaft units 40 for right angle units 6, 7, 8 - NOMINAL OVERALL RATIO - HORIZONTAL RIGHT ANGLE UNIT - MECHANICAL FAN & COOLING COIL - VERTICAL PARALLEL SHAFT UNIT - COOLING COIL - HORIZONTAL PARALLEL SHAFT UNIT - VERTICAL RIGHT ANGLE UNIT SHAFT ROTATION UNIT HANDLING - METRIC SOLID SINGLE EXTENSION - METRIC SOLID...

SERIES G DESIGN FEATURES Shaft Mounted Units Shaft mounted units can be mounted on the driven machine shaft extension and connected to the foundation by a torque arm, supplied as an optional extra. Additionally, unit feet are 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. It is positioned on the input side of the gear unit. Motorised Gear Units Baseplates Standard baseplates can be supplied for units with parallel or right angle shafts. Assemblies...

SERIES G DESIGN FEATURES Gears High quality alloy case hardening materials provide long life wear resistance and fatigue strength. spiral bevel and helical gears. Gearcases Standard gearcases are of rigid cast iron construction with modern styling, special cases can be supplied as SG iron or fabricated steel. Inspection cover provided for viewing gear contacts. Gearcase Finish Gearcase housings are shot blasted to SA 2-1/2 (or better) prior to painting. Standard Paint System - Short oil alkyd resin/pigment semi-gloss, Colour: - RAL 5009 (Blue). Optional Paint System for Extreme Climatic and...

SERIES G EXPLANATION AND USE OF RATINGS AND ASSOCIATED RATING FACTORS Gear unit selection is made by comparing actual loads with catalogue ratings. Catalogue ratings are based on a standard set of loading conditions, whereas actual load conditions vary according to type of application. Service Factors are therefore used to calculate an equivalent load to compare with catalogue ratings. i.e. Equivalent Load = Actual Load x Service Factor Mechanical and Thermal Service Factor must be considered:- Mechanical Service Factors Fm and Fs Thermal Service Factors Ft, Fd, Fh and Fv Mechanical ratings...

SERIES G EXPLANATION AND USE OF RATINGS AND ASSOCIATED RATING FACTORS Driven Machine Crusher ore stone sugar H = Heavy shock load = Refer to Application Engineering Blowers centrifugal lobe vane Elevators bucket-uniform load bucket-heavy load bucket-continuous centrifugal discharge escalators freight gravity discharge man lifts passenger Feeders apron belt disc reciprocating screw Food industry beef slicer cereal cooker dough mixer meat grinders Generators-not welding Hammer mills Hoists heavy duty medium duty skip hoist Laundry washers reversing Laundry tumblers Line shafts driving...

SERIES G EXPLANATION AND USE OF RATINGS AND ASSOCIATED RATING FACTORS Thermal ratings and service factors The Thermal ratings are a measure of the gear units ability to dissipate heat. If they are exceeded the lubricant may overheat and breakdown, resulting in gear failure. Thermal ratings are given on page 32 for parallel shaft units and page 46 for right angle shaft units. The following choices are available: i) No additional cooling Catalogue thermal limitations are based on the unit operating continuously in an environment with an ambient temperature equal to 25o per hour, altitude and...