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ML B RD SERIES

Product catalog summary

Introduction
This technical catalogue outlines the specifications and features of PTO gearboxes, focusing on speed increasers (ML and B series) and speed reducers (RD series). These gearboxes are designed to connect hydraulic pumps to low-speed tractor power take-offs, adhering to UNI ISO 6336 and ISO 281 standards for gears and bearings. They operate within a temperature range of -20°C to +85°C, with materials chosen for durability and resistance to stress and wear.

General Features
The gearboxes are engineered for easy attachment with multiple mounting points. Proper assembly requires attention to the level indicator, oil drain, and vent/fill plug positions. Torque arms should be used to minimize stress, positioned near the mounting plane.

Gearbox Duration
The lifespan of gearboxes depends on working conditions and transmitted torques. Technical specifications include graphs to estimate duration based on average torque, with maximum starting torque (C1) and maximum continuous duty torque (C2) provided. A formula calculates average torque (Cm) for mixed duty cycles.

Lubricating Oil
Recommended oils vary by temperature, including industrial oils (ISO 3498), transmission oils (SAE J 183), and engine oils (SAE J 308). Initial oil replacement is advised after 50 hours, then every 1000 hours or six months.

ML32 Speed Increaser Gearbox
The ML32 gearbox is suitable for pumps GR.2 with a European unified flange, offering specifications for transmission ratios, maximum torque values, and mounting positions. Made of aluminum, it provides various PTO configurations.

ML52 Speed Increaser Gearbox
The ML52 gearbox is designed for pumps GR.2/3 with a European unified flange, featuring multiple transmission ratios and mounting positions, with options for SAE A/B configurations. Technical data includes torque values and oil capacity.

ML52/SAE A-B Speed Increaser Gearbox
This variant of the ML52 gearbox is compatible with SAE A/B pumps, offering similar features to the standard ML52 but with specific input shaft options and mounting configurations.

Conclusion
The catalogue stresses the importance of adhering to technical specifications and operating limits for safety and optimal performance. Continuous technical improvements may lead to changes without prior notice.

Technical Specifications
The document provides detailed specifications for speed increaser and splitter gearboxes used with pumps, including maximum starting torque (C1) and maximum torque for continuous duty (C2) across various transmission ratios. Designed for different input speeds (540 rpm and 1000 rpm), the gearboxes have specified maximum radial loads on the PTO.

Transmission Ratios and Torque
Multiple transmission ratios are listed, ranging from 1:1.0 to 1:4.8, with corresponding maximum torque values in Nm and lbf·ft. The weight of the gearboxes is also provided in kg and lb.

Mounting Positions and Oil Capacity
Different mounting positions are specified, each with a corresponding oil capacity in liters and US gallons. The document also includes average gearbox life in hours.

Ordering Codes and Flanges
Ordering codes for different gearbox models are provided, detailing the P.T.O. side, pump side, and transmission ratios. Information on universal flanges and specific flange types (SAE A, B, C) with corresponding kit numbers is included.

Graphical Data
The document contains graphical data illustrating the relationship between input rpm and output rpm for various transmission ratios, along with diagrams of the gearboxes with dimensions in mm and inches.

Spare Parts and Maintenance
Instructions for ordering spare parts are included, emphasizing the need to provide reference numbers, gearbox model, PTO type, and transmission ratio to ensure compatibility and proper maintenance.

Catalog excerpts

Technical Catalogue January

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Motion Systems ML52/B Speed increaser gearbox with through-shaft for pumps GR.2/3 © 2018 Dana Brevini S.p.A. all rights reserved. Hydr-App, SAM Hydraulik, Aron, Brevini Hydraulics, BPE Electronics, VPS Brevini, OT Oiltechnology, logos are trademarks or are registered trademarks of Dana Brevini S.p.A. or other companies Dana in Italy and other countries. The technical features supplied in this catalogue are non binding and no legal action can be taken against such material. Dana Brevini will not be held responsible for information and specifications which may lead to error or incorrect interpretations....

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Motion Systems GENERAL FEATURES This catalog shows the characteristics of the gearboxes (speed in-creasers) ML and B series, and gearboxes (speed reducers) RD. Gearboxes are gerally used for the connection of hydraulic pump with low speed tractor power take-off. Calculation for gears was done according to UNI ISO 6336. Calculation for bearing was done according to ISO 281. Operating temperature is between -20 °C to + 85 °C. Materials used for the components of gear have been chosen according to the study of different requirements of resistance to stress and wear. In particular, the gears are...

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Motion Systems Example of calculation of gearboxes duration: Speed increaser ML32 - transmission ratio 1: 2.5 - rpm 1000 Operating torque:: Duty cycles: In diagram curve number 7 has to be considered (gear ratio 1: 2.5 at 1000 rpm). The estimated duration of the average torque of 60.4 Nm is approximately 3600 hours. Lubricating oil The types of oil, in the following table, are those suggested for the For features that are outside the range of proposed values, please correct lubrication of the gears and are differentiated according to the contact our sales department. temperature at which gearboxes...

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Pump side SPEED INCREASER GEARBOX FOR PUMPS GR.2 WITH EUROPEAN UNIFIED FLANGE ORDERING CODE ML32 = Speed increaser (aluminium body) P.T.O. 1 = Male 1” 3/8 DIN 9611 2 = Female 1” 3/8 DIN 9611 3 = Female 1” 3/8 DIN 9611 + tightening 12 = Female 1” 3/8 DIN 9611 short 18 = Female z21 - 16/32 DIN 9611 19 = Female z21 - 16/32 DIN 9611 + tightening Coupling for pump to be required to our sales department.

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Motion Systems TECHNICAL DATA Mounting positions Average torque on pinion (Cm) Transmission ratio * Maximum torque on pump: C1= maximum starting torque; C2= maximum torque for continuous duty.

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ML52 SPEED INCREASER GEARBOX FOR PUMPS GR.2/3 WITH EUROPEAN UNIFIED FLANGE Pump side ORDERING CODE ML52 = Speed increaser (aluminium body) P.T.O. 1 = Male 1” 3/8 DIN 9611 2 = Female 1” 3/8 DIN 9611 3 = Female 1” 3/8 DIN 9611 + tightening 12 = Female 1” 3/8 DIN 9611 short 18 = Female z21 - 16/32 DIN 9611 19 = Female z21 - 16/32 DIN 9611 + tightening Coupling for pump to be required to our sales department. Flange Omit for pumps GR.3 C = predisposition for pumps GR.2 - GR.3 S = SAE A - see page 30 T = SAE B - see page 30 Mounting positions 1/2/3/4 Transmission ratio 1 = 1 : 1.0 1,5 = 1 : 1.5 2...

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Motion Systems TECHNICAL DATA Mounting positions Transmission ratio * Maximum torque on pump: C1= maximum starting torque; C2= maximum torque for continuous duty.

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ML52/SAE A-B SPEED INCREASER GEARBOX FOR PUMPS SAE A/B 200 [7.874] Pump side ORDERING CODE ML52/SAE A = Speed increaser (aluminium body) ML52/SAE B = Speed increaser (aluminium body) P.T.O. 1 = Male 1” 3/8 DIN 9611 2 = Female 1” 3/8 DIN 9611 3 = Female 1” 3/8 DIN 9611 + tightening 12 = Female 1” 3/8 DIN 9611 short 18 = Female z21 - 16/32 DIN 9611 19 = Female z21 - 16/32 DIN 9611 + tightening Input shaft 9 = Female Ø 25 16 = Female Z18 DIN 5482 (35x31) Coupling for pump to be required to our sales department.

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Motion Systems TECHNICAL DATA Transmission ratio * Maximum torque on pump: C1= maximum starting torque; C2= maximum torque for continuous duty. Mounting positions

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ML52/B SPEED INCREASER GEARBOX WITH THROUGH-SHAFT FOR PUMPS GR.2/3 WITH EUROPEAN UNIFIED FLANGE Pump side Mounting positions ORDERING CODE ML52B = Speed increaser (aluminium body) P.T.O. 4 = Female/Female Ø 35 short 6 = Male/Male 1” 3/8 DIN 9611 7 = Female/Female 1” 3/8 DIN 9611 8 = Female/Male 1” 3/8 DIN 9611 15 = Female/Female 1” 3/8 DIN 9611 short 23 = Male 50x45 Z=24 DIN 5482 Male 1” 3/8 DIN 9611 Coupling for pump to be required to our sales department.

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Motion Systems TECHNICAL DATA Mounting positions Average torque on pinion (Cm) Transmission ratio * Maximum torque on pump: C1= maximum starting torque; C2= maximum torque for continuous duty.

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B-585/A SPEED INCREASER GEARBOX FOR PUMPS SAE A 20.5 [0.807] Pump side ORDERING CODE B-585/A - ** -1/ *** - * - ** - ** - ** B-585/A = Speed increaser for pumps SAE A P.T.O. 1 = Male 1” 3/8 DIN 9611 3 = Female 1” 3/8 DIN 9611 + tightening 19 = Female z21 - 16/32 DIN 9611 + tightening Variants 00 = No variant Coupling 00 = No Coupling 02 = Z=18 BF3/2 2T = Z=18 BF3/2T 03 = Z=18 BF3 Pinion internal teeth A0 = Z13 16/32” B0 = Z15 16/32” C0 = Z18 DIN 5482 (from 1/1.0 to 1/3.8 transmission ratio) Mounting positions 1/2/3

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Motion Systems TECHNICAL DATA Transmission ratio * Maximum torque on pump: C1= maximum starting torque; C2= maximum torque for continuous duty. Average torque on pinion (Cm) Mounting positions

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B-585/B SPEED INCREASER GEARBOX FOR PUMPS SAE B 121 [4.764] Pump side ORDERING CODE B-585/B - ** -1/ *** - * - ** - ** - ** B-585/B = Speed increaser for pumps SAE B P.T.O. 1 = Male 1” 3/8 DIN 9611 3 = Female 1” 3/8 DIN 9611 + tightening 19 = Female z21 - 16/32 DIN 9611 + tightening Variants 00 = No variant Coupling 00 = No Coupling 02 = Z=18 BF3/2 2T = Z=18 BF3/2T 03 = Z=18 BF3 Pinion internal teeth A0 = Z13 16/32” B0 = Z15 16/32” C0 = Z18 DIN 5482 (only until 1/3.8 ratio)

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Motion Systems TECHNICAL DATA Transmission ratio * Maximum torque on pump: C1= maximum starting torque; C2= maximum torque for continuous duty. Average torque on pinion (Cm) Mounting positions

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