Tuesday, October 31, 2017

New Power Take-off for Isuzu MEB9

Extending our range of products, we present our new constant mesh PTO, with one gear, to be mounted on the left side opening of the gearbox Isuzu MEB9.

This PTO is available with pneumatic actuator, with output flange.

Isuzu MEB9 is a 9-speed manual gearbox, capable of developing a high torque. Combined with the 6NX1-TCS engine, it achieves a greater efficiency in the consumption and a lower level of noise. It also saves space in the vehicle thanks to its reduced dimenssions.

For more information, please contact our commercial department under part no. 1910902

Bezares - Hydraulic equipments for industrial vehicles - PTO (power take-off), hydraulic pump, hydraulic valve, powerpack and complete hydraulic systems

New aluminum Oiltanks range 

Bezares presents the new range of aluminum oil tanks MBM in 160 and 200 l.

In these new tanks, the return connectors on both sides have been removed in order to improve the mounting options in those chassis where the space is very limited. On the rear side, next to the suction connector a drain port was added. Also the front level indicator was replaced for a new fill cap with level on the top. Optionally, it can also be supplied with a standard return filter or a low profile filter kit, to avoid interference with other vehicle components. The external dimenssions do not suffer any variation compared with MB series.

With MBM Tanks we have improved the manufacturing costs, obtaining a great product with an unbeatable price-quality relationship.

For more information, please contact our sales department.

Bezares - Hydraulic equipments for industrial vehicles - PTO (power take-off), hydraulic pump, hydraulic valve, powerpack and complete hydraulic systems

Bezares showcases its new product line at Solutrans 2017

From November 21th to 25th Bezares will be displaying its latest products at Solutrans 2017 in Lyon, France.

SOLUTRANS, the FFC (French Bodywork Federation) event, organised by Comexposium, is expecting over 900 exhibitors and brands (23% from other countries), covering all sectors, manufacturers of heavy vehicles, trailers, bodybuilders, equipment manufacturers, after-sales specialists, service companies, etc. More than 36,000 visitors are also expected (10% from abroad).

We are looking forward to meet you all at our stand in the Hall 5 – Street S – Stand 153.

Bezares - Hydraulic equipments for industrial vehicles - PTO (power take-off), hydraulic pump, hydraulic valve, powerpack and complete hydraulic systems

What is and how to choose a Hydraulic pump

A hydrostatic transmission pump, commonly called a hydraulic pump, is a positive displacement machine and its mission is to transform mechanical energy into hydraulic, based on the Pascal Principle. This Principle is based on the fact that, when exerting a pressure or push on a fluid like oil (which is considered incompressible), it is transmitted equally in all directions.

Taking advantage of this principle, hydraulic actuators, depending on the pressure and displacement surface (eg surface of a piston), will transmit the force necessary to move the application.

Turning the pump drive shaft causes the internal components responsible for the suction and delivery of the oil to be moved, by varying the volume at each turn, called displacement, with a minimum loss and regardless of the pressure of the system.

Put more simply, the pump delivers an oil flow to the system and through a distributor with pressure limiting, the direction, the effort and the speed with which the actuator of the application is moved, which is usually a cylinder (tipper, crane) or a hydraulic motor (winch, winch, wheel, head or other).

They are usually found in mobile applications such as industrial vehicles, civil works or maintenance, as well as industrial applications such as elevators, presses, machine tools and process machinery.

The assembly and actuation of the pump is direct through a power take-off coupled to the vehicle’s gearbox, although an indirect hydrostatic transmission can also be mounted, or by coupling and electric motor (AC / DC) or combustion.

The most frequent types of pumps are manufactured Bezares, s.a. (Spain), such as piston pumps, pallets and gears, being one of the few factories in the world that produces the 3 types and also manufactures power sockets and distributors. 

Hydraulic Pump Selection

In order to properly dimension the application in the project, as well as to avoid damage to the equipment, its necessary to find out three fundamental data:

Displacement of the pump: Knowing the displacement will let you know the size of pump needed.

D = Q x 1000 / n       

D = Displacement (c.c.)
Q = Flow required by application (l / min)
n = RPM output (rpm motor x PTO internal ratio)
Example: if we have a tap that rotates at 1000rpm and we need the flow rate to be 60l / min, we would need a 60c.c.
On the contrary, if we have a pump of 60c.c. and an electric motor rotating at 1,500rpm, the pump would provide a theoretical flow rate of 90l / min.

Required power in the power take-off or in the motor for the application:

N = Q x p / 450 x

N = Power (HP)

Q = Flow required by the application (L / min)
p = Pressure (bar)
η= yield (eg If it is 95%, the value will be
Example: if we need about 60l / min and the application requests a pressure of 250bar, the power we would consume would be about 35 c.v. with a 95% performance piston pump.
In the case of electric motor mounting, the operating time must be kept in mind.
In turn, if we have a motor of 35 cv, we can clear the value of the pressure, to know the maximum value of work in bar.

Required torque in the PTO for the application:

T = p x D / 63 x   

D = Displacement (c.c.)
Q = Flow required by the application (L / min)
n = Revolutions at the inlet of the PTO
Example: if we have a pump of 60c.c. and the application requests a pressure of 250bar, the torque to be transmitted to the shaft would be 250Nm with a gear pump with a 95% efficiency.

Finally, recall the Pascal Principle of Pressure:


  , or of more practical application:    

And if we know the working pressure and the useful surface of the actuator:

F (kgf) = p (bar) X A (cm²)

If we follow the example of the figure with its units in mm, the piston pump 1 of 1,5cm in diameter has A≈ 1,8. Applying a pressure of 100bar (100kg /), we would obtain F1≈180kg, then the piston 2 of 5cm in diameter and 19.6 would exercise an F2 ≈ 1960 kg, which means about 19,200 N of thrust, capable of raising a vehicle.

Units Conversion: 1 bar ≈ 14 psi, 1l = 1000c.c. and 1 GAL ≈ 3,78l

Once these data are calculated, they are compared to the maximum values ​​of the power take-off or the motor to which the pump is coupled. If the calculated data exceeds that of the drive, a smaller pump or a power take-off or the higher-performance electric motor must be fitted.
It is very important to keep in mind that the required oil volume should be approximately 3 times the required flow rate and control the variables such as the operating time and the oil temperature.

Types of Bezares’ Hydraulic Pumps 

Bezares has a wide range of hydraulic pumps to adapt to the requirements of each application, both in the field of mobile hydraulics and industrial hydraulics.

Gear Pumps

   BEA / BEAU / BEASF – Flow rates: 11 and 17 cc / rev. P1 = 250 bar

Bidirectional, aluminum body, low noise, with internal drainag

Types of assembly: ISO / UNI / SAE A.Types of assembly: ISO / UNI / SAE A.

   BEM / BEU / BEMRA – Flow rates: 23 ÷ 46 cc / rev. P1 200 ÷ 250 bar

Bidirectional, cast steel body, with internal drainage

Types of assembly: ISO / UNI / SAE B.

Side and rear ports with BSP, SAE or NPT threads

   BEL / BELS / BELRA / BELRB – Flow rates: 50 ÷ 115 cc / rev. P1 200 ÷ 290 bar

Flow rates: 50 ÷ 115 cc / rev. P1 200 ÷ 290 bar

   BEXL / BEXLNS / BEXLRB – Flow rates: 85 ÷ 150 cc / rev. P1 210 ÷ 250 barBidirectional, cast steel body, with internal drainageMounting types: ISO / SAE BB.Side and rear ports with BSP or SAE threadsLIGHT BEXLNS VERSION, WITHOUT BEARING SUPPORT BEARING.

Piston Pumps

   BZ / BZT – Flow rates: 12 ÷ 101 cc / rev. P1 230 ÷ 300 barBidirectional. Type of construction: pistons in lineTypes of assembly: ISOPorts with BSP threadsDOUBLE FLOW BZT VERSION FOR TWO INDEPENDENT CIRCUITS.

   FR / FRB / FRBB –  Flow rates: 20 ÷ 110 cc / rev. P1 = 350 barUnidirectional. Type of construction: bent-axis pistonsMounting types: ISO / SAE B / SAE BBPorts with BSP or SAE threads

   MR / MRAE –  Flow rates: 20 ÷ 110 cc / rev. P1 = 350 barUnidirectional. Type of construction: bent-axis pistonsMounting types: ISO / SAE B / SAE BBPorts with BSP or SAE threads

   F1 – Flow rates: 25 ÷ 101 cc / rev. P1 = 350 barUnidirectional. Type of construction: bent-axis pistonsTypes of assembly: ISOPorts with BSP threads

   T1 – Flow rates: 25 ÷ 101 cc / rev. P1 = 350 barUnidirectional. Type of construction: bent-axis pistonsTypes of assembly: ISOPorts with BSP threads

   F2 – Double flow rate: 42/42 ÷ 70/70 cc / rev. P1 300 ÷ 350 barUnidirectional. Type of construction: bent-axis pistonsTypes of assembly: ISOPorts with BSP threads

Variable flow pumps

   FRV – Flow rate: 84 cc / rev. P1 350 barUnidirectional. Load sensing system (*)Types of assembly: ISOPorts with BSP threads

   VP1 – Flow rates: 45 ÷ 130 cc / rev. P1 350 ÷ 400 barUnidirectional. Load sensing system (*)Types of assembly: ISOPorts with BSP threads

(*) The load sensing system accurately provides the required flow rate at every moment, drastically reducing energy consumption and generating heat, resulting in smoother and quieter system operation. All of this results in a reduced environmental impact.

Vane Pumps

Vane pumps are unidirectional units with great versatility and quiet operation, with easily replaceable cartridges. The configuration of the output ports can be customized according to the needs of the customer. Wide variety of flow and axes. The most used are:

   Mobile hydraulics

VQ – 

DT6GC – 
Flow rates: 11 ÷ 100 cc / rev. P1 240 barDOUBLE FLOW VERSIONS: DT6GCC

   Industrial hydraulics

VS – 

DT6C – 
Flow rates: 11 ÷ 100 cc / rev. P1 160 ÷ 240 barDOUBLE FLOW VERSIONS: DT6CC

DT6D – 
 Flow rates: 48 ÷ 190 cc / rev. P1 80 ÷ 210 barDOUBLE FLOW VERSIONS: DT6DCTRIPLE FLOW VERSION: DT6DCC

DT6E – 
Flow rates: 132 ÷ 270 cc / rev. P1 75 ÷ 210 barDOUBLE FLOW VERSIONS: DT6EC AND DT6EDTRIPLE FLOW VERSION: DT6EDC

For additional information, please contact our Commercial department

Bezares - Hydraulic equipments for industrial vehicles - PTO (power take-off), hydraulic pump, hydraulic valve, powerpack and complete hydraulic systems

Friday, September 29, 2017

Bezares’ Joint Venture for Asian Market

Bezares SA is pleased to announce the signature of a joint venture with Zhejiang Power Transmission Co., Ltd. establishing a new company named Bezares Power Co. Ltd.

The new company was set up after a year of discussions between Bezares SA and Zhejiang Power Transmission Co.,Ltd.  who have recognized the major synergies that both companies offer to each other in the field of PTOs, winches, pumps and shaft adapters.

Zhejiang Power Transmission Co., Ltd. is a leading hydraulic parts manufacturer based in Yaozhuang– Zhejiang Province – with a facilities of 10.000m2 and with a workforce of 135 people and an anual production of 40.000 PTOs.

Bezares Power Co. Ltd. is managed by the current Bezares' headquarters based in Casarrubios del Monte, Toledo, Spain.

The establishment of the new company Bezares Power Transmission Co.,Ltd. offers clear advantages for both. The western Bezares' clients will benefit from new PTO models, which are less common in the European market and with a short lead times, keeping the same BZ quality. Besides the Bezares’ and Power’s Asian customers will benefit from the offer increase and the local logistics thanks to the new facilities and thanks to a quality control of European standards. This will represent a new era for Bezares brand in the Asian market.

The Zhejiang production plant already has the Bezares' line in production, increasing our offer in 40.000 PTOs a year and with the potential to easily increase up to 50.000 units/year, and has a enviable customer portfolio, turning our well-established European brand into a great power in the Asian market.

Zhejiang Power Transmission Co.,Ltd. will be able to draw on the skill, resources and years of developments and refining of a complete range of specialized hydraulic engineering including PTOs, winches, pumps and shaft adapters with the potential to easily increase its production pool extending to the entire Bezares' lineup.

Bezares SA is looking forward to offer its new clients the complete range of hydraulic equipment and accessories via the new joint venture company and is also looking forward to developing new relationships with the extended client base.

For further information with regards to Bezares Power project, please contact with our marketing department at bezares@bezares.com

New PTO for Tata G550

Responding to the market demand and in order to expand our range of PTOs, we have developed a new unit to install on the left side of the Tata G550 gearbox.

The G550 6-speed gearbox, mounted in the Tata Ultra 1017 vehicles, is produced in a lightweight aluminum-cast, with direct-drive option and driven by cable.

This new PTO has pneumatic piston facing downwards to avoid any possible interference with other elements of the vehicle. It is available with flange output as well as with ISO 4 bolts.

This power take off is now available under the part numbers 291002 and 291003.
For more information, contact our sales department.

New PTO for Isuzu MVC-Y6G (6MT)

Responding to the market demand, we have developed a new two-gear PTO to mount on the left side of the Isuzu MVC-Y6G (6MT) gearbox. 

This new PTO will be available with output flange SAE and DIN so as with ISO 4 bolts to mount a pump and with vacuum or mechanical shifting.

This product will be available in the last quarter of 2017.

For more information, contact our sales department.

New Gleason’s 300TWG Threaded Wheel and Profile Grinding Machine

Following our commitment to quality and to the continuous improvement of our equipment and processes, we have recently acquired the new Gleason 300TWG, which allows the teeth grinding of segmented gears of our ptos and pumps up to module 8. This machine tool has a great performance and it is operated by axes driven by servomotors and components of the highest quality.

Its profile grinding capacity and contour dressing offers multiple possibilities of work results in a remarkable reduction of the profiling time, due to its ability to work in several teeth at the same time.

In addition, there are also additional functions to improve our parts, as a variable rate method grinding to achieve a better surface texture for quieter gear sets, compensation for the correction of the propeller and many different crowning possibilities.

At the hardware level, it includes a complete system of automatic feeding by carousel with pallets and a new system of machine measurement, which allows to increase the productivity and flexibility, controls the stability of the process and even makes corrections without removing the piece from the machine.

All this allows a more precise and efficient production, resulting in products of higher quality and more competitive prices.

Friday, June 30, 2017

What is a Power Take-Off?

The Power Take-Off or PTO is a mechanical device which is mounted on the gearbox to obtain power and a determined rpm for our application. This mechanical energy from the gearbox is transmitted to the pump and converted into hydraulic energy. When selecting a PTO we should consider different issues:

 What is the transmission brand and model? 

When requesting a PTO it is very important to know the brand and the model of the transmission.

With that information, we can advise you to select the most adequate power take-off for your application.

Which PTO opening are you going to use?

Most of the industrial vehicles are supplied with one or more PTO openings. Each window may have different transmission ratios. According to the position of the window, it can classified as follows:

Side: The window for installing the PTO is on the right or on the left side of the gearbox, always looking at the gearbox from the rear of the vehicle.

Rear: The opening window is on the rear of the gearbox, most common with ZF, MB ad Volvo transmissions.

Bottom: The window is in the bottom or "belly" of the box.

What kind of equipment is to be driven by the PTO?

Based on the application, the pto shall have different outputs. The most common outputs are:

   For pump (ISO 4 holes, UNI 3 holes, SAE A, SAE B, SAE C)

Flange to connect to a transmission (SAE 1100, SAE 1300, SAE 1400, DIN 90, DIN 100, DIN 120, etc.)

What is the power required by the application?

In order to calculate the power consumption it is necessary to know the pressure and flow of our application.

What is the rotation required of the PTO?

Depending on the number of gears of the PTO, we can choose the direction of rotation.

Bezares also offers rotation reverse adapters for those cases where there are no different options.

What will be the percentage of speed required at the output of the PTO?

Depending on the internal ratio of the pto, the PTOs can be:

Simple: Also called direct. 1: 1 ratio

Multiplied: The ratio will be 1:> 1

Reduced: The ratio will be 1: <1. 

In order to calculate the final ratio you just need to multiply the transmission's output ratio by the PTO's internal ratio.

What will be the shifter’s type required?

Depending on the type of actuator, the power take-offs can be classified as follows:

Pneumatic: If the truck has air brake, it means that it has a compressor. They are usually driven at 7kg / cm2 – 8kg/cm2.

In small vehicles, where no compressor is available, it is possible to install one using the Bezares pneumatic pressure kit. It is an independent unit without maintenance, which provides a pneumatic line.

Mechanic: They are manually operated by means of a lever or cable that connects directly to the PTO's piston. With the movement of the cab's lever, the power take-off's fork moves internally and engages it.

Vacuum: When the truck has a depressor, it works through a vacuum line.

If your vehicle does not have one, it's also possible to install it using the Bezares' simple acting shifting kit.

Electric with motor: This actuator includes a small electric motor which moves a bar which diplaces the synchronizer until the pto is enganged. This system ensures always an easy engagement.

In contrast to the electric actuator with solenoid-type, the electric motor only works when engaging and disenganging the pto. This allows long working periods of time without power consume and avoiding possible damage to the vehicles battery.

Electrohydraulic: It incorporates an electrohydraulic actuator. They are normally used in the clutch PTOs for automatic Allison or Aisin gearboxes.

Article created in collaboration with Alfonso Sabbatini e Hijo S.R.L.

New BULL Winch for Pick-up Vehicles

In the following months BZ will launch a new hydraulic winch for applications with reduced mounting space and with a maximum rope capacity of 15 m. Some example applications would be pick-up vehicles, winches mounted under the platform or on the second floor or auxiliary winches.

This new winch is a reduced and lighter version (less than 30 kg) of our actual Bull. Currently under development, it is expected to be finished in the last quarter of the year.

The Bull Pick-up will be available in two differente models: 3500 kg and 4500 kg.
Regarding the shifting options, it could be ordered:

  • With manual clutch
  • With pneumatic clutch
  • With clutch activated by cable
  • Without clutch (for the situations with no direct access to the winch, saving space in the installation).

Wednesday, May 31, 2017

BZ-350 gearbox with helical gear

Following its commitment of continuous improvement, Bezares has developed a new version of the BZ-350 transferbox with helical gear. 

This feature significantly reduces the noise level and improves its performance and durability, which combined with its mechanical or pneumatic actuator options, make the BZ-350 box one of the most flexible options in our range. 

Auxiliary power take-offs require the input gear # 17 to connect to the central unit. 

For more information, contact our commercial department with the 6015899 code for mechanical actuator or 6015999 for pneumatic actuator.

NEW MBM multifunction oil tanks

We are proud to introduce a new version of our well known aluminum tank MB series. This new model is supplied without return ports in the sides, which improves the mounting options in those chassis where the space is very limited. However, general dimensions are the same as the previous MB model while the total weight is slightly reduced.

It includes filter flange, rear drain port and fill cap with level rod (front level indicator has been eliminated). Optionally, it can be supplied with a standard return filter or a low profile filter kit to avoid interference with other vehicle components.

They are already available in 160 and 200 liters, under the part numbers 90AS16MBM and 90AS20MBM.

For more information, you may contact our Commercial Department.

AVAILABLE NOW - New TraXon Double Output PTO

The first units of our new reinforced power take-off are now available for sale. With internal lubrication and mounting flange incorporated in the housing, this setup has the advantage of easier gearbox mounting by reducing the number of elements to be assembled.

Its two outputs, with equal ratios of 1:1.6, can be combined between ISO 4 holes and transmission flange, as well as being used independently when driven separately.

The new power take-off for ZF TraXon is available under the part number 1029950

For more information, you may contact our commercial department.

Bezares @ International Machinery Exhibition (SMOPYC) 2017

Bezares presented its latest hydraulic innovations at the International  Exhibition of Machinery for Public Works, Construction and Mining (SMOPYC) 2017 at the Zaragoza Fair.   

SMOPYC, an internationally recognized fair, closed its 2017 edition exceeding exhibitors’ expectations. The participation of 720 companies  from 28 countries and the attendance of nearly 48,000 professional visitors confirmed the strength of the event in a edition strategically focused on the export market.  

SMOPYC has the presence of practically all sector associations and its 2017 edition was among the bigger specialized fairs in the world in the field of industrial machinery and construction.   

We would like to thank your visit in our booth. We are looking forward to seeing you again in next shows!

Tuesday, April 4, 2017

ISO/TS 16949 - Automotive quality certification

Bezares is proud to announce the achievement of the Certification ISO / TS 16949.
ISO / TS 16949 is a technical specification based on ISO 9001 that defines the requirements of the quality system for the automotive industry's supply chain.

 ISO/TS 16949:2009 aims for the development of a quality management system that provides for continual improvement, emphasizing defect prevention and the reduction of variation and waste in the automotive supply chain. ISO/TS 16949 applies to the design and development, production and, where relevant, the installation and servicing of automotive-related products. 

ISO / TS 16949 represents a significant opportunity for the standardization and continuous improvement of Bezares products, certifying the quality of our products and production processes.

Bezares @ Nissan Body Builder’s Guide

Bezares has been recently included in Nissan Body Builder’s Guide 2017 for the gearbox ZF 6S-420. 

We are certified once again as official supplier as in previous editions for the gearboxes M5-35 and M5-40.

Apart from ensuring the quality of our processes and products, this certification of Nissan guarantees the complete compatibility of our products with the lifespan expected from original parts. 

It also allows BZ products to be factory-installed or repaired by authorized Nissan dealers as an original part.

Bezares will continue to invest in new partnerships and certifications in a continuous improvement process to guarantee the quality and compatibility of its products with the main gearbox manufacturers.

New Input Gear #74-G/198 for Eaton Procision

Bezares has developed an input gear that allows the installation of the 1000 and 3300 Series PTO on the right register of the EDCO-6F107A gearboxes as well as on the other models from Eaton Procision series. 

These 7-speed automatic gearboxes, with dual clutch, are more efficient than the currently provided with torque converter, offering between 8% and 10% fuel saving. 

The power take-offs with the new gears will be available in Q2 /2017. 

For prices, availability and more information, please ask our Commercial Department.

Bezares @ The Work Truck Show 2017 - Summary

Bezares had showcased its latest mobile hydraulic products at the Work Truck Show 2017, in Indianapolis, Indiana.

This Trade Show, organized by NTEA—the Association for the Work Truck Industry, is North America’s largest gathering of vocational trucks and equipment from Classes 1–8, including chassis, bodies, components and hydraulic accessories.

We thank all our customers and collaborators who have visited our stand.

Stay tuned for our Power-take-over @ Asian Markets

In the next newsletters we will inform about Bezares' progress to increase its product line and distribution with new Asian market's specific solutions. 

2017 will be the year to definitively consolidate our presence in the Asian market.

Don't miss the next newsletter for more information