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BR Series G

BR Series G
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BR Series G

Product catalog summary
Overview: The document provides comprehensive information on Series G Industrial Reducers, which are designed for diverse mechanical drive applications in industries such as food, energy, mining, automotive, aerospace, and marine propulsion. These reducers offer custom-engineered transmission solutions with an emphasis on high load capacity and reliability.
Specifications: Series G gear units are available in parallel shaft helical units and right angle shaft bevel/helical units, featuring double, triple, and quadruple reduction gear stages. They deliver a maximum output torque of up to 162,000 Nm. The modular design facilitates part interchangeability, enhancing production efficiency while ensuring component integrity.
Design Features: Constructed with high-quality materials, the gear units are designed for durability and performance. They offer multiple mounting positions, heavy-duty applications, and various output shaft options. The units are suitable for non-reversing drives and comply with the ATEX Directive for use in potentially explosive atmospheres.
Product Range: The document lists various series within the product range, including Series X, J, C, BD, M, H, BS, A, K, and F, each offering different configurations and applications such as torque limiters, shaft-mounted reducers, and right angle drives.
Selection and Ratings: Gear unit selection involves comparing actual loads with catalog ratings, using service factors to calculate equivalent loads. Mechanical and thermal service factors are considered to ensure the unit's capacity meets application requirements. Tables are provided for mechanical service factors and number of starts factors.
Lubrication and Cooling: Lubrication is typically achieved through oil transfer by gears, with options for spray lubrication and complete systems if needed. Cooling methods include convection, fan and cooling coil, or separate oil coolers.
Additional Features: The document details options for backstops, preservation/protection measures, and gearcase finishes. It also includes information on shaft extensions, hollow output shafts, and the use of rust inhibitors for protection during storage and transport.
Technical Specifications: The document provides detailed technical specifications and dimensions for Series G parallel and right-angle shaft units, focusing on triple and quadruple reduction gear systems. It includes mechanical ratings, moments of inertia, and exact ratios for various unit sizes.
Dimensions: Specifications include dimensions for vertical parallel shafts, input and output shaft details, tapped hole dimensions, and unit-specific measurements. It also covers fan cooling dimensions for parallel shafts and right-angle units.
Mechanical Ratings: Mechanical ratings are provided for right-angle shaft units at different input speeds (1750 RPM, 1450 RPM, and 1160 RPM), including input power (kW) and output torque (Nm) for various nominal ratios and unit sizes (G14 to G22).
Moments of Inertia: The document lists moments of inertia for right-angle units, both with and without fans, and provides nominal ratios for different unit sizes.
Exact Ratios: Exact ratios for right-angle shaft units are detailed, with nominal ratios and corresponding column entries for each unit size.
Key Data: Tables within the document provide critical data on dimensions, mechanical ratings, and moments of inertia, essential for selecting the appropriate gear unit for specific applications.
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Catalog excerpts

BR Series G-1

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

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BR Series G-2

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 Series...

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BR Series G-3

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 1...

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BR Series G-5

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 / Output...

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BR Series G-6

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 advantage...

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BR Series G-7

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 DOUBLE...

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BR Series G-8

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 comprise...

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BR Series G-9

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 Environmental...

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BR Series G-10

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 and...

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BR Series G-11

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 processing...

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BR Series G-12

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 operating...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.