Tag Archives: right angle reducer

in Muscat Oman sales price shop near me near me shop factory supplier K Series Motoreductor Helical Gear Speed Reducer Parallel Shaft Gearbox Right Angle Spiral Bevel Gearbox Small Transmission Gear manufacturer best Cost Custom Cheap wholesaler

  in Muscat Oman  sales   price   shop   near me   near me shop   factory   supplier K Series Motoreductor Helical Gear Speed Reducer Parallel Shaft Gearbox Right Angle Spiral Bevel Gearbox Small Transmission Gear manufacturer   best   Cost   Custom   Cheap   wholesaler

we supply chromed bar and tubes for hydualic and pheumatic cylinders. Having amassed valuable expertise in cooperating with international consumers, With many years’ expertise in this line, we will be trustworthy by our positive aspects in aggressive price tag, a single-time shipping and delivery, prompt response, on-hand engineering assist and great soon after-income services.Additionally, all our generation processes are in compliance with ISO9001 specifications.

Product Description

K series EPT EPTT/ EPEPT EPTT electrical motor with reduction EPT micro cycloidal EPTT EPTT EPT box

SLK collection EPTT is one sort of EPTcal EPTTl sort EPTT , EPT-stainless forged iron case . ,it is designed dependent on modularization , which bring several distinction types of combinations ,mounting kinds ,and composition patterns .The depth classification of ratio can meet up with various of functioning problem .EPT EPTT performance ,Low energy consumption, superior efficiency . The tough tooth surface area EPT use the substantial quality alloy steel , the method of carburizing and quenching, grinding ,which give it adhere to characters : Stable EPTT , minimal sound and temperature ,higher loading ,EPTT functioning existence. which commonly use for business products of metallurgy ,EPTT EPT , EPTT , EPT , Oil, EPT , Papermaking , SuXiHu (West EPT) Dis.Hu (West EPT) Dis. producing , engineering EPTTs ,and so forth

Requirements:

one) Output velocity: .six~1,571r/min

2) Output torque: up to 21700N.m

three) EPT EPTT: .twelve~200kW

four) Mounted type: foot-mounted and flange-mounted mounting

Product Identify SLK Collection Rigid Tooth helical EPTTl EPTT
EPT EPT 20CrMnTi
Situation EPT EPTT250
Shaft EPT 20CrMnTi
EPT Processing EPT complete by HOFLER EPT EPTTs
EPTT EPTT
Sounds Test sixty five~70dB
Effectiveness ninety four%~98% (is dependent on the EPTT phase)
Lubricating oil Shell Omala synthetic oil or EPTral oil , or comparable model
Warmth remedy tempering, cementiting, quenching,and so on.
Brand of bearings C ampU bearing, ZWZ,LYC, EPTB, SKF,NSK and so on
Brand name of oil seal NAK or other manufacturer
Temp. rise (MAX) 40 deg
Temp. increase (Oil)(MAX) fifty deg
Vibration le20 microm

EPTT data

EstabEPTTd in 1985, EPT EPTT EPTTRY EPTT, LTD is a high and new EPT EPTTrprise partaking in investigation, deveXiHu (West EPT) Dis.Hu (West EPT) Dis. and manufacture for EPTT amp pace variator, one particular of the director member of EPTT EPTT Association of EPTT EPTT EPTTry.
It addresses more than 40,000 square meters, has a lot more than four hundred employees , twenty% of whom are specialists, equipped with far more than 300 sets the most EPTd accurate numerical handle equipment, incXiHu (West EPT) Dis.Hu (West EPT) Dis. German HOFLER forming EPT grinding EPTT to increase high quality.
established up a lot more than thirty national revenue branches to provide our customers in time and completely.
Our items also exported to far more than 30 nations major in Europe, Asia America, and Africa, with high popularity.

EPTT management

EPTT ampDelivery

EPTT Particulars: StXiHu (West EPT) Dis.Hu (West EPT) Dis.rd carton/Pallet/StXiHu (West EPT) Dis.Hu (West EPT) Dis.rd wood situation

Supply Information : fifteen-30 functioning daEPTTupon payment


Associated Merchandise

EPT Planetary EPTT Robotic RV EPTT velocity EPTT
Customized produced Non-stXiHu (West EPT) Dis.Hu (West EPT) Dis.rd EPTT UDL Series Variator
PYZ Series EPTcal Tooth Shaft Mounted EPTT 8000 Collection Cycloidal EPTT
SLT Series Spiral EPTTl EPTT SLSWL Collection Worm Screw Jack
SLP Series Planetary EPTT SLH/SLB Series EPT EPTT EPTT
NMRV Collection Worm EPTT BKM Collection EPTcal-hypoid EPTT
SLRC Sequence EPTcal EPTT SLEPTR Series Shaft Mounted EPTT
SLXG Collection Shaft Mounted EPTT X/B Series Cycloidal EPTT
SLR/SEPTT/SLK/SLS Series EPTcal EPTT AC/DC EPT

Main item record: 16 collection incXiHu (West EPT) Dis.Hu (West EPT) Dis. SLR/SLS/SLK/SEPTT sequence tough tooth flank EPT EPTT , SLRC series aluminium circumstance helical EPT EPTTs,SLHSLB series large EPTT speed EPTT, SLP sequence planetary pace EPTT, X/B sequence cycloidal EPTT, SLXG sequence shaft-mounted EPT box, SLSWL sequence worm screw jack, SLT series helical cone EPT box, entirely a lot more than 10,000 ratios, various specification make us at the head of domestic EPTT market, extensively provide the mechanical EPTT area of ligEPTT amp large business this kind of as: beer amp EPTTrage, mining EPTT, food EPTT, textile printing, rubber amp plastic material, petrochemical business, jack-up transportation, pharmacy amp process hides, environmental defense tools.


Certificate

FAQ

one.Payment Phrase: TT, L/C

two.Shipping and delivery time: about thirty daEPTTfrom EPT payment.

3.We settle for EPT merchandise as for each your EPTT requirement.

four.XiHu (West EPT) Dis.hu (West EPT) Dis.traces for the Choice:Normally we can pick one particular EPTT which is suitable for you with some informations from you,this sort of as ratio/motor velocity/mounting dimension/ out torque and many others.

five.If the minimal orEPTTamount is in excessive of $10000, there are preferential.

Q1: What info must I notify you to validate the item?

A:Model/Dimension, EPTT Ratio, Shaft instructions amp OrEPTTquantity.

Q2: What can i do if I do not know which a single EPT?

A:Dont fear, Deliver as significantly information as you can, our group will support you find the rigEPTT one you are seeking for.

Q3: What is your item guarantee period?

A:We provide one yr guarantee since the vessel departure date still left EPTT.

Q4: Are you investing firm or manufacturer ?

A: We are factory.

Q5: How EPTT is your supply time?

A: EPTTly it is five-10 daEPTTif the merchandise are in inventory. or it is fifteen-twenty daEPTTif the products are not in inventory, it is according to quantity.

Q6: Do you supply samples ? is it totally free or extra ?

A: Indeed, we could offer the sample for totally free cost but do not spend the EPT of freight.

Q7: What is your conditions of payment ?

A: Payment lt=1000USD, 100% in EPT. Payment gt=1000USD, thirty% T/T in EPT ,stability prior to shippment.

If you have one more question, pls come to feel free of charge to make contact with us as underneath:

Contact Us

  in Muscat Oman  sales   price   shop   near me   near me shop   factory   supplier K Series Motoreductor Helical Gear Speed Reducer Parallel Shaft Gearbox Right Angle Spiral Bevel Gearbox Small Transmission Gear manufacturer   best   Cost   Custom   Cheap   wholesaler

  in Muscat Oman  sales   price   shop   near me   near me shop   factory   supplier K Series Motoreductor Helical Gear Speed Reducer Parallel Shaft Gearbox Right Angle Spiral Bevel Gearbox Small Transmission Gear manufacturer   best   Cost   Custom   Cheap   wholesaler

in Bukavu Democratic Republic of the Congo sales price shop near me near me shop factory supplier The Best Quality Right Angle Nmrv Km Series Helical Worm Gearbox Reducer manufacturer best Cost Custom Cheap wholesaler

  in Bukavu Democratic Republic of the Congo  sales   price   shop   near me   near me shop   factory   supplier The Best Quality Right Angle Nmrv Km Series Helical Worm Gearbox Reducer manufacturer   best   Cost   Custom   Cheap   wholesaler

EPG was awarded with “well-known merchandise of Zhejiang Province” and “popular brand of Zhejiang Province”. Our principal merchandise are Needle Roller bearings, Cylindrical Roller Bearings, Rod finish Bearings, Spherical plain bearings, Monitor roller Bearings for Guideway, Roller Bearings, Combine Bearings for forklifts, H2o Pump Bearings, SNR Car Bearings and all varieties of Spherical Bearings. The new goods incorporate a collection of high-tech and higher good quality chains and sprockets and gears, these kinds of as chains and gearboxes for agricultural machineries, metallurgical chains, escalator phase-chains, high-velocity tooth chains, timing chains, self-lubrication chains, among which have kind substantial pace tooth chain for auto branch dynamic box and aerial chains fill in the blanks of chain in China.

The Greatest EPTT RigEPTT Angle Nmrv Km Series Helical Worm EPTT EPTT

Functions:

1. two-phase or 3-stage helical amp hypoid EPTTl EPTT established, large reduction ratio
two. Hardened EPTTs, increased EPTT hardness and energy than RV series worm EPTTs. Wearable and EPTT support lifestyle
3. Vitality efficient. The efficiency is much more than ninety%. About ten%~40% efficiency variation in contrast with RV series worm EPTT
4. Modular style, numerous mixtures
5. Mounting dimensions are appropriate with RV collection (Other than KM050 and RV050)
six. High performance KM series can exchange RV collection in vast purposes

Merchandise Description:

Rated EPTT .12KW-5.5KW
Enter Speed 1400r/min
Output Speed 4.seven-187.0r/min
Ratio 7.48-296.10
Output Torque 5.9-874N.m
Accessory Torque arm
EPTT Cast iron, EPTT alloys

Major EPTTs
(1) EPTT: die-solid EPTT alloy (frame dimension 27 to fifty seven)
(two) Equipment wheel: 20CrMnTiH1 carbonizing amp quenching warmth remedy make the hardness of EPTTs surface area be up to 56-sixty two EPTC, and be retained carburization layers thickness in between .three and .5mm soon after specific grinding.
three. Surface Painting
EPTT alloy housing:
(1) Shot blasting and EPTT antiseptic treatment method on the EPTT alloy surface area.
(2) Following phosphating, spray the RAL9571 silver white paint.

Designs

Versions

Phase

Nominal Ratio

Output Pace (n2)*

Max. Torque

Enter Shaft Dia.

Output Gap Dia.

Output Shaft Dia.

KM050

3 Phase

fifty~three hundred

4.eight~27

130N.m

Phi11

Phi20, Phi24

Phi25

2 Stage

seven.5~sixty

24~181

130N.m

Phi11

KM063

3 Phase

fifty~300

four.six~27

200N.m

Phi11

Phi25, Phi28

Phi25

two Phase

7.5~sixty

23~184

200N.m

Phi14

KM075

three Phase

fifty~three hundred

four.seven~28

350N.m

Phi14

Phi28, Phi30, Phi35

Phi28

two Stage

7.5~sixty

24~187

350N.m

Phi16

KM090

3 Stage

fifty~three hundred

four.7~28

500N.m

Phi14

Phi35, Phi38

Phi35

2 Stage

seven.five~60

24~187

500N.m

Phi19

KM110

three Phase

50~three hundred

4.7~27

750N.m

Phi19

Phi40, Phi42

Phi42

2 Stage

7.5~sixty

24~187

750N.m

Phi24

*Enter Pace: n1=1400r/min

Item pictures:

Our business :
EPTT reg was started in 1982, which has far more than 36 several years in R amp D and manufacturing of EPTTes, EPTTs, shaft, motor and spare parts.
We can offer you the proper remedy for uncountable programs. Our merchandise are extensively used in the ranges of metallurgical, metal, mining, pulp and paper, suXiHu (West Lake) Dis.Hu (West Lake) Dis. and alcohol industry and various other sorts of EPTTs with a robust existence in the global market place.
EPTT reg has turn out to be a reliable supplier, capable to source high high quality EPTTes.With 36 years experience, we assure you the utmost trustworthiness and protection for equally item and solutions.

Consumer going to:

FAQ:
one.Q:What varieties of EPTT can you create for us?
A:Main products of our business: UDL collection speed variator,RV series worm EPTT EPTT, ATA collection shaft mounted EPTT, X,B sequence EPTT EPTT,
P sequence planetary EPTT and R, S, K, and F series helical-tooth EPTT, a lot more
than one hundred designs and countless numbers of requirements
two.Q:Can you make as per custom made drawing?
A: Of course, we provide EPT service for buyers.
three.Q:What is your phrases of payment ?
A: thirty% Progress payment by T/T soon after signing the agreement.70% prior to shipping and delivery
4.Q:What is your MOQ?
A: 1 Established

Our Solutions

Pre-sale providers 1. Choose products product.
2.Layout and manufacture merchandise according to clients’ EPTT necessity.
3.Practice specialized private for clientele
Providers for the duration of offering one.Pre-examine and take goods forward of delivery.
2. Support clientele to draft resolving programs.
Soon after-sale companies one.Help customers to get ready for the first construction plan.
2. Teach the first-line operators.
three.EPTTke initiative to eliminate the difficulty quickly.
four. Supply complex exchanging.

If you have any demand for our merchandise you should really feel free to speak to me.

  in Bukavu Democratic Republic of the Congo  sales   price   shop   near me   near me shop   factory   supplier The Best Quality Right Angle Nmrv Km Series Helical Worm Gearbox Reducer manufacturer   best   Cost   Custom   Cheap   wholesaler

  in Bukavu Democratic Republic of the Congo  sales   price   shop   near me   near me shop   factory   supplier The Best Quality Right Angle Nmrv Km Series Helical Worm Gearbox Reducer manufacturer   best   Cost   Custom   Cheap   wholesaler

Best China manufacturer & factory china in Doha Qatar supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction With high quality best price

Best China manufacturer & factory china  in Doha Qatar  supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction With high quality best price

In 2000, EPG took the lead in gaining ISO14001 environment management certificate and thereafter passed the inspection of clear creation and recycling economic system, successful the title of “Zhejiang Inexperienced Business”.

Overview

Quick Details

Relevant Industries:

Producing Plant

Pole:

single stage two phase 3 phase

Ratio:

two.8-2000

Application:

for coal gold mining drilling gear miner mine

Substance:

20CrMnTi Solid Iron Casing

Doing work temperature:
Shut up of shear pin which will shear in 50 percent if the implement is topic to ample resistance Shear pin: the shear pin shaft I use for the chipper/shredder. The pushed conclude yoke is in fact two pieces with a shear pin or bolt that retains the two items as a single for the duration of procedure. Must the tools experience a unexpected end the pin will consider the shock and “shear off” avoiding any driveline harm. 

-forty~45℃

Type:

sequence Substantial quality Special pace reducer HB helical gearbox/gear box

Method:

Carburizing, Nitriding , Grinding

Efficiency:

92%~ninety six%

Mounting Situation:

Horizontal,Vertical,Flange

Coloration:

Blue,Inexperienced,Gray,Purple

Packaging & Shipping and delivery

Lead Time
:
Amount(Bags) 1 – one >1
Est. Time(times) fifteen To be negotiated

Online Customization

Solution Description

 

china supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction 

YOUR Skilled MANUFACTURE

—— Since 1995

   H B Series Industrial GearBox  

At any time-Electrical power Machinery —— Tianqi Brand name

industrial gearbox companies/Gear Box Transmission

90 diploma proper angle shaft mount helical equipment box speed reducer gearbox reduction

Chinese electric powered motor speed reducer is widely employed in mining equipment, chemical sector,steel metallurgy, mild business,environmental safety, paper creating, printing, lifting transportation, food industry and so on.  

Principal Series Product: R collection helical gear reducer, K collection spiral bevel gear reducer, NGW, P collection planetary reducer, H B sequence gearbox, Z (ZDY, ZLY, ZSY, and ZFY) serial hard tooth surface cylindrical equipment reducer, D (DBY and DCY) serial hard tooth surface cone gear reducer, cycloid reducer, etc. In the meantime, map sample processing company can be carried out.

china supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction

Feature:

  • Recognized parallel shaft,proper-angle shaft modes and horizontal,vertical mAdhering to “Survival by Quality, Growth by Technological innovation & Credit rating”, The company will consistently boost product functionality to fulfill the rising buyer requirements in the demanding style of work. ounting modes. Using much less element parts.

  • Implementing sophisticated grinding approach which improved the stability and the performance of transmit energy with reduced sounds.

  • Enter manner: motor related flange, shaft enter

  • Output method:strong shaft with flat important,hollow shaft with flat essential,hollow shaft with shrink disk,hollow shaft with spline relationship, sound shaft with spline link, reliable shaft with flange.

  • Mounting method:vertical, horizontal, swing base-mounted, torque-arm-mounted.

  • Ratio range:1.23~450. It can be greater when combining with K&R collection reducer.

Specification

H 90 degree proper angle shaft mount helical equipment box velocity reducer gearbox reduction:

(you should speak to us for more kinds & design)

 

Mounting Diamensions:

china supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction

china supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction

Model assortment for washing machine Equipment Box Transmission:

Closely using the perfect reduction ratio.

Reduction ratio = servo motor velocity / reducer output shaft pace

Torque calculation: Torque calculation is really important for the lifestyle of reducer, and shell out attention to no matter whether the highest torque benefit (TP) of acceleration exceeds the maximum load torque of the reducer.

The applicable energy is normally the applicable electrical power of the servo types on the market place, the applicability of the reducer is quite high, the doing work coefficient can be managed above 1.2, but the choice can also be based mostly on their very own demands to determine. 90 diploma right angle shaft mount helical equipment box speed reducer gearbox reduction.

Driven machines
Squander drinking water therapy Thickeners,filter presses,flocculation apparata,aerators,raking gear,mixed longitudinal and rotary rakes,pre-thickeners,screw pumps,h2o turbines,centrifugal pumps Dredgers Bucket conveyors, dumping devices, carterpillar travelling gears, bucket wheel excavators as decide up, bucket wheel excavator for primitive substance, cutter head, traversing gears
Chemical sector Plate bending devices, extruders, dough mills, rubbers calenders, cooling drums, mixers for uniform media, agitators for media with uniform density, toasters, centrifuges Steel working mills plate tilters, ingot pushers, winding devices, cooling mattress transfer frames, roller straigheners, desk continuous intermittent, roller tables reversing tube mills, shears continuous, casting drivers, reversing blooming mills
Steel doing work mills Reversing slabbing mills. reversing wire mills, reversing sheet mills, reversing plate mill, roll adjustment drives Conveyors Bucket conveyors, hauling winches, hoists, belt conveyors, great lifts, passenger lifts, apron conveyors, escalators, rail travlling gears
Frequency converters Reciprocating compressors
Cranes Slewing gears, luffing gears, travelling gears, hoisting gear, derricking jib cranes Cooling towers Cooling tower followers, blowers axial and radial
Cane sugar manufacturing Cane knives, cane mills Beet sugar generation Beet cossettes macerators, extraction vegetation, mechanical refrigerators, juice boilers, sugar beet washing machines, sugar beet cutter
Paper devices Pulper drives Cableways Material ropeways, constant ropeway
Cement business Concrete mixer, breaker, rotary kilns, tube mills, separators, roll crushers    

Technological innovation

 china supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction

Chinese Velocity Reducer/industrial helical gearbox is a mechanical transmission in several fields of the nationwide economic climate. The product The output subassembly, which consists of the worm equipment and bearing cups and EPG s, masses on to a independent station for two simultaneous measurements. The equipment applies a predetermined load to opposing bearing cups and actions the complete stack top. At the very same time, a master worm engages and oscillates the output worm gear to find the exact center of curvature for the gear enamel. The device then steps the distance among this centerline and the rear-bearing cup.categories lined by the business incorporate all sorts of gear reducer, planetary equipment reducer and worm gearbox, as well as numerous specific transmission products this kind of as velocity growing system, speed handle Units, including a variety of kinds of adaptable transmission products, these kinds of as compound transmission. Items and companies in the subject of metallurgy, nonferrous metals, coal, building supplies, ships, drinking water conservancy, electrical power, construction machinery and petrochemical industries.

 

In all fields of countrywide financial system and countrywide defense market, gearbox products have a extensive variety of applications. Foods light business, electric powered machinery, development equipment, metallurgy equipment, cement equipment, environmental defense equipment, electronic appliances, road building machinery, h2o conservancy machinery, chemical machinery, mining machinery, conveyor equipment, building supplies equipment, rubber equipment, petroleum equipment and other industries have robust desire of Reducer products. H PV series Higher top quality Unique velocity reducer HB helical gearbox/gear box.

china supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction

Packaging & Shipping

 china supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction

  • one. Big Volecity- Reducing Ratio:Ratio of single-stage pace-decreasing is 1/eleven-1/87 Ratio of double phase speed-reducing is 1/112-1/5133Ratio of a few-phase speed-reducing is 1/2057-1/446571more-stages can be mixed in accordance to the requirement.
  • two. High driving effectiveness:Thanks to adopting rolling engagement in falling-in portion, the driving efficiency can attain previously mentioned 90%.

  • three. Small in dimensions, mild excess weight: with compacted construction,modest dimension and mild bodyweight. Thanks to adopting the principle of planet driving so that the input and output shaft in the very same axis which will integrated with the motor.

  • 4. Long support life: Has excellent resistance to abrasion since the principal driving engaging areas are created of bearing steel and applying rolling friction.

  • five. Stable operating: for most driving treatment, we undertake multi-teeth falling-in. Then the running will be steady with low sound.

  • 6. Convenient dismounting:reasonable structure and design and style.

  • seven. Strong overloading ability,anti-compact,appropriate for frequently begin and double-facet rotation.  

Firm Info

Established in 1995 , HangZhou At any time-Energy Machinery is a specialist company and exporter that is involved with the design and style, advancement and manufacturing of Gearbox Velocity Reducer. We are found in HangZhou of ZheJiang Province, with handy transportation entry. With our personal brand “EPG”, all of our products comply with global good quality standards and are significantly appreciated in a variety of diverse markets during the planet.

Our company possesses complete machining center, lathe, gear shaping equipment, gear milling machine, equipment grinding equipment and assembling lines. Our effectively-geared up services and exceptional high quality handle during all levels of manufacturing allows us to assure complete buyer gratification.

china supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction

FAQ

 

1.Q:Are you the factory or buying and selling firm?

    A:We are the expert Factory with over twenty five several years of knowledge.

2.Q:Can you customise according to our specifications?

   A:Indeed, we can design nonstandard items in accordance to customer’s drawing and sample.

three.Q:How long is the shipping day?

   A:10-20 doing work times.

4.Q:In which is your manufacturing unit?

   A:We are in HangZhou of ZheJiang Province, you can get below by higher pace prepare or fly to Jinan.

   Welcome to go to us!

china supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction

china supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction

Best China manufacturer & factory china  in Doha Qatar  supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction With high quality best price

Best China manufacturer & factory china  in Doha Qatar  supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction With high quality best price

Best China manufacturer & factory china  in Doha Qatar  supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction With high quality best price

Best China manufacturer & factory china  in Doha Qatar  supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction With high quality best price

Best China manufacturer & factory china  in Doha Qatar  supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction With high quality best price

Best China manufacturer & factory china  in Doha Qatar  supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction With high quality best price

Best China manufacturer & factory china  in Doha Qatar  supplier 90 degree right angle shaft mount helical gear box speed reducer gearbox reduction With high quality best price