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1 PRODUCTS IN THE RANGE. 0105. Serving an entire spectrum of mechanical drive applications from food, energy, mining and metal; to automo- tive, aerospace and marine propulsion, Textron Power Transmission is here to make a positive difference to the supply of drive solutions. Series A Series B Series C Series D Series E Extruder Drive Worm gear units Conex helicoidal Right angle drive Dual gears on Economical Rugged duty and geared motors gear geometry right helical worm geared parallel output shafts planetary servo reducer takes high in single & double angle gearmotors motors & reducers gearboxes screw pressure reduction types and reducers Series F Series G Series H Highspeed HTP Series J.

2 Parallel helical shaft Helical parallel shaft Large helical parallel Helical parallel shaft High torque Shaft mounted mounted geared & bevel helical right shaft & bevel helical high speed units planetary gear units helical speed motors & reducers angle drive gear right angle drive reducers units units Series K Series M Mill Drives Series P Pumps Series Q. Right angle helical In-line helical geared Bevel planetary Precision planetary Double helical gear In-line planetary bevel helical geared motors & reducers vertical mill drives servo gearboxes pumps geared motors &. motors & reducers reducers Model RG Series R Series S Series T Series W Winches &.

3 Right angle Right angle spiral Screwjack worm Right angle straight Precision right angle Capstans gearhead in two bevel gear unit gear units bevel gear unit servo gearboxes Custom engineered precision levels solutions Series X Series X Series X Series X Series X Series X. Cone Ring Flexiwrap Gear Grid Nylicon Torque Limiter Pin and bush Double flexing Torsionally rigid, Double flexing steel Gear coupling with Overload protection elastomer coupling elastomer coupling high torque coupling grid coupling nylon sleeve device Textron Power Transmission can create custom engineered transmission solutions of any size and configuration.

4 CONTENTS. 0209. Catalog Contents General Information 3-5. Proper application of Textron Power Transmission Products 4. Ratings 4. Self-locking 4. Backdriving or overhauling 4. Bearings 4. Overhung load capacity (chain pull) 4. Stairstepping 4. Material Specification 5. Selection Procedure 7 - 13. Service Factors 7. Efficiency 8. Shaft Rotation and Thrust Direction 9. Rotational Inertia 10. Backlash 11. Table of reducer backlash 12. Lubrication 13 - 15. Oil Seals 13. Lubrication data 14. Approved List of lubricants 14. Oil capacities 15. Limiting speeds for lubrication 15. Single Reduction 16 - 50.

5 Double Reduction 51 - 74. Triple Reduction 75 - 77. Gearsets and Output Shafts 78 - 85. Table of backlash for gearsets 78. Gearset Mountings 86 - 98. Table of Standard Gearsets 99 - 101. Information for Spare Parts 102. 2. General Information 0209. Introducing the New Model HP The Textron Power Transmission Drive Advantage Double Enveloping Worm Gear Reducer The element that distinguishes Textron Power Transmission Textron Power Transmission introduces the Model HP reducers products from all the others is the double enveloping design. The tested and proven to have as much as 50% more torque than our term double-enveloping is an apt description, as the worm and previous reducer model.

6 The performance of the Model HP is gear wrap around each other. This greatly increases load carrying capacity by providing more tooth area contact and more teeth in based on improved material properties for the worm and gear mesh than other worm gear designs. combined with the use of synthetic lubrication. Along with the metallurgical advancements, the lastest computer and manufactur- This design difference leads to many advantages, among them: ing technology augment the performance of the Model HP. This Higher torque capacity with no increase in size, or con- means that you can now increase your torque per dollar even more versely, smaller, more reliable speed reducers using Textron Power Transmission s new Model HP.

7 High shock resistance, and the ability to withstand heavy starting and stopping loads Low backlash due to the inherent precision of the double- enveloping design Increased durability and longer gear life Fans When Required Design flexibility resulting from smaller and lighter envelopes for Maximum Thermal Simply stated, a Textron Power Transmission speed reducer is a Horsepower small machine doing the work of a big one. High Capacity Tapered Roller Bearings Housing Provide Maximum Life Designed for Optimum Heat and Overhung Load transfer Capacity Centrifugal Cast Phosphor Bronze Gear Fine Grain Structure for Extensive Maximized Durability Dynamometer Testing High Grade Alloy Steel Precision Ground Worm Threads Increased Strength and and Machined Gear Teeth Durability Increased Durability Smooth Running Synthetic Oil 300% Overload Improved Performance Straight Size Textron Size Linear Pitch Circular Pitch Circular Pitch Circular Pitch The mesh of common cylindrical worm The Textron Power

8 Transmission double- The Textron Power Transmission design gearing provides one to one and one-half enveloping design typically provides gearset can carry loads which would gear teeth in contact with the worm. contact between one-eighth of the total require cylindrical worm gearing much number of teeth on the gear and the worm. larger and heavier. 3. General Information 0209. Proper Application of Textron Power Transmission Overhung Load Capacity (Chain Pull). Products The input and output shafts of all standard Textron Power Textron Power Transmission gearsets and reducers, are Transmission reducers are equipped with high quality tapered designed and built to rigorous specifications.

9 However, Textron roller bearings. Contact Textron Power Transmission Applica- Power Transmission must have adequate application informa- tion Engineers for input and output shaft overhung load (chain tion in order to properly design and build products which meet pull) capacities. Shaft limiting values for solid output shafts the needs of its customers. based on reducer size (based on load applied at the center of the keyway). Shaft limiting values shown are in Lbs. In any applications of Textron Power Transmission products where breakage, damage, disconnection, any 20 25 30 35 40 50.

10 Other malfunction of any drive train component, or excessive wear could result in personal injury or property 1060 1420 1850 3500 4560 7180. damage, a fail-safe device capable of stopping and holding the load in the event of such an occurrence 60 70 80 100 120. must be incorporated after the drive train. Textron Power Transmission reserves the right to specify 10300 13400 14200 18700 32900. minimum service factors, stress levels, speed limitations, etc. for drives of this nature and will not be responsible for applica- Backdriving or Overhauling tions of our products that have not been reviewed or approved Applications such as wheel drives that require a brake on the in writing prior to installation or for products installed or used in motor or input shaft to decelerate a high inertial load require a manner different than originally specified by the customer.