Catalog System Program: Catalog System Program
Catalog System Program: Catalog System Program
Nozag emphasizes flexibility, speed, innovation, and continuous improvement to gain competitive advantages. The company is ISO 9001:2008 certified, ensuring high-quality standards and reliability, fostering strong partnerships with customers.
Nozag offers a variety of products including screw jacks, bevel gearboxes, connecting shafts, and linear drives. The standard program features spur gears, bevel gears, worms and worm wheels, standard racks, trapezoid threaded screws and nuts, chains and chain wheels, couplings, and precision steel shafts.
Nozag provides user-friendly catalogs and 3D-CAD downloads. The company specializes in developing, manufacturing, and selling standard and custom-designed gear components, focusing on fast delivery and high-quality standards.
Nozag's screw jacks offer efficient and cost-effective drive solutions with a modular system for easy assembly and customization. They provide precise linear movements and are self-locking when the drive is at a standstill.
The selection and dimensioning of screw jacks depend on customer specifications. Nozag assists in design and layout, ensuring products meet industrial standards. Screw jacks are not suitable for continuous operation and have specific temperature and duty cycle limitations.
Screw jacks are used in industries such as packaging, research, solar tracking, and space travel, providing reliable positioning and movement control.
Nozag's comprehensive product range and modular systems offer flexible and efficient solutions for drive technology challenges, with a commitment to quality and customer satisfaction.
The spindle is loosely screwed into the gearbox and must be locked against rotation to prevent movement due to friction, achievable through external guides or an anti-rotation lock in the protection tube.
Fastening: A plane-machined base surface is required for fastening screws, mounted for pressure in the main load direction. Additional securing is recommended for unknown factors like impact and vibration.
Safety Distance: Maintain a safety distance between movable and fixed components to prevent jamming.
Accuracy: Gearbox repeat accuracy is up to 0.05 mm, requiring specific drive-side measures.
Direction of Rotation and Movement: Indicate the system's direction of rotation in drawings.
Self-locking/Overrun: Single-start trapezoid thread spindles are self-locking to a limited extent; braking motors are recommended for double-thread spindles or ball screws.
Drive: Use a frequency converter for uniform starting and braking ramps.
Trial Operation: Conduct test runs at no-load and under load to ensure safe working.
Spare Parts: Stock a gearbox set to prevent production downtimes.
Stage Construction: Lifting jack systems are supplied according to current stage building specifications.
Ambient Conditions: Specify if conditions differ from a normal industrial workshop.
Loads, rotation speeds, and duty cycles must not be exceeded. Good spindle lubrication is essential. Fastening screws should be tightened after short operating times, and spindle nut wear should be checked regularly.
Lubrication is done with grease or oil, and gearboxes are lubricated for life under standard conditions. Specific lubricants are recommended.
Critical Buckling Force: Calculations are provided for determining the critical buckling force of the lifting spindle.
Bending Critical Speed: Calculations for the bending critical speed of trapezoid thread spindles are provided.
Heat Balance: Only a small part of drive power is converted into lifting force, with losses dissipated as heat. Ambient temperature affects load capacity.
Definitions for various load types and forces are provided, with emphasis on lateral forces being absorbed by guides.
The document outlines various models of screw jacks, including NSE2, NSE5, NSE10, NSE25, NSE50, and NSE100, each with different spindle sizes and lifting capacities ranging from 2 kN to 100 kN. The screw jacks are available in both rotating and non-rotating versions, with options for different materials and lubrications.
Instructions are provided for determining spindle and protection tube lengths, including calculation examples. The document also details the installation of limit switches and proximity switches, emphasizing the importance of correct alignment and positioning.
The document references compliance with IEC/EN 60947-5-1 standards for limit switches, ensuring safety and reliability in electrical components.
Recommendations include using bellows to protect screw jacks from environmental factors like dust and moisture, and ensuring proper installation to avoid wear. The use of spiral spring covers is advised for additional protection, with specific installation guidelines provided.
Various accessories such as limit switches, bellows, and spiral spring covers are discussed, with details on their specifications and installation. The document also mentions the availability of CAD data and product datasheets for further reference.
The tables provide detailed specifications for each screw jack model, including spindle sizes, lifting capacities, drive speeds, and efficiency ratings. The document also includes weight information for both the screw jacks and spindles, as well as material options.
- Sizes and Capacities: The document details screw jacks with lifting capacities ranging from 5 kN to 1000 kN. Each size has specific spindle types and optional strengthened versions.
- Materials: Housing is primarily made of aluminum, with an option for CuAL10Fe5Ni5. Lubrication options include grease and oil.
- Weight: The weight of screw jacks and spindles varies with size, with detailed specifications provided for each.
- Efficiency and Safety: Factors include efficiency, ratio, and safety. For configurations with more than six gearboxes in series, consultation with technicians is recommended.
- Optional Features: Strengthened versions of spindles are available for higher load capacities.
- Drive Components: Detailed in chapter 4, with motor mounting instructions in chapter 5.
- Safety Features: Safety trap nuts and ball screws are available, with specific guidelines for wear monitoring and load direction checks.
- Available Attachments: Include flange nuts, spindle ends, cardan adapters, and protection caps. Each attachment has specific dimensions and compatibility details.
- Lubrication and Maintenance: Adequate lubrication is crucial for system longevity, with specific lubricants recommended for ball screws.
- Customization: Screw jacks can be customized for complex tasks, with options for different materials and designs.
- Contact and Support: CAD data and product datasheets are available online, with technical support offered for design and calculation assistance.
The document provides detailed specifications for various mechanical components, including lubrication dispensers, screw jacks, bellows, spiral spring covers, and drive components. The lubrication dispensers, such as the SSG-125-L, are designed for food fat applications and can last from 1 to 12 months depending on usage. Accessories like tubes and bushings are available.
The document outlines procedures for the installation and maintenance of bellows and spiral spring covers. Bellows protect spindles from dirt and moisture, and specific guidelines are provided to prevent wear and ensure proper installation. Spiral spring covers require careful handling to avoid uncoiling and should be installed with the correct orientation for optimal performance.
Recommendations include protecting bellows from direct sunlight and ensuring they are not compressed or extended beyond specified dimensions. For spiral spring covers, a light film of oil is recommended to improve operation and longevity. The document also advises on the correct installation of drive components to ensure efficient torque transmission.
The document includes tables detailing the dimensions, materials, and temperature ranges for various components. For example, screw jacks are made from NBR material with a temperature range of -20 to +80°C. The document also provides torque specifications for connecting shafts and clamp couplings, highlighting the importance of selecting the correct elastomer insert for specific applications.
Attention is drawn to the importance of not exceeding specified dimensions for bellows and ensuring proper support to prevent wear. The document emphasizes the need for precise calculations when determining spindle lengths and provides examples for ordering components. Additionally, it highlights the importance of specifying application speed for drive components to ensure compatibility with critical bending speeds.
- Various models (RM 12 to RM 55) with different dimensions and configurations.
- Designs include through shaft, hollow shaft, and motor flange options.
- Special designs available with different gear ratios and shaft configurations.
- Standard motors recommended with 1400 min-1 (4-pole); other configurations available upon request.
- Braking motors are essential for systems with ball screw drives or 2-thread spindles.
- Frequency converters recommended for large systems to ensure smooth operation.
- Motors are surface-cooled, with options for external ventilation.
- Condensation water management and thermosensors are critical for motor longevity.
- Motors available in sizes 63 to 132, with various housing and bearing materials.
- Universal versions allow flexible terminal box positioning.
- Motors are dynamically balanced and equipped with plastic fans and steel fan hoods.
- Options include tropical protection, humidity protection, external fans, and special paints.
- Motors can be customized with special shafts, terminal boxes, and voltage requirements.
- Motors designed for continuous operation (S1) at 50 Hz frequency.
- Standard protection class is IP 55, with insulation class F.
The document provides detailed specifications for various motor attachments and rotary pulse encoders. It includes dimensions, mechanical values, and electrical properties for different models such as NSE2-DIG, NSE5-DIG, and others. Key mechanical values include maximum rotational speed (6000 min-1) and temperature ranges for electronics and cables. Electrical values cover voltage supply, pulse frequency, and output signals.
The rotary pulse encoder DIG is designed for easy integration into drive systems, offering compact construction and simple assembly. It is suitable for all IEC flange motors and provides universal HTL- and TTL signals. The encoder is short-circuit resistant and protected against reverse polarity and surges.
The document describes spring-loaded brakes (type FDB) for motor attachments, highlighting their dual-surface design for dry running. The brakes operate by compression springs and are vented electronically. Key features include manual venting options and maintenance guidelines.
Maintenance guidelines emphasize the importance of regular inspection and lubrication to ensure system availability and longevity. The document outlines procedures for adjusting brake air gaps and maintaining lubrication systems, including the use of automatic lubricant dispensers.
For optimal performance, the document advises on the correct assembly, inspection, and maintenance practices. It also provides guidance on temperature considerations and the use of appropriate lubricants for different environmental conditions.
The dispensers can be mounted in any position but should not be exposed to direct heat. They should be used within two years of the production date and stored at a temperature of 20°C +/- 5°C. It is crucial to ensure that grease channels are completely filled and not blocked before commissioning. The lubricant dispenser can be adjusted or shut off during the dispensing period, and the first discharge may take hours or days depending on settings and temperature. Connecting pipes should not exceed 0.5 m in length, and pipe resistances should be minimized.
The assembly manual must be followed strictly to ensure functionality and safety. Only qualified personnel should handle the layout, assembly, commissioning, and maintenance of screw jacks. Safety instructions must be adhered to avoid dangers to life, limb, and property. Replaced lubricants should be disposed of correctly. The integration of screw jacks into systems must comply with the EU Machinery Directive and other relevant standards.
The screw jacks convert rotational movement into linear movement and can be used in various installation positions. They are suitable for general mechanical engineering under normal conditions, but special measures are required for suspended loads. Adjustments may be necessary for specific requirements, such as in the food industry or extreme conditions.
Operating temperatures range from -40°C to +160°C, with specific requirements for seals and greases at different temperatures. The wear of the trapezoid threaded nut must be checked regularly, and the gearbox or nut replaced if wear exceeds 20% of the thread pitch. Screw jacks should not hit mechanical stops, and moving parts must be protected against accidental contact.
During assembly, ensure the spindle is aligned with the nut and the housing is at right angles to the resting surface. The spindle can be installed from both sides in the R-version, and the central screw or nut must be installed with thread adhesive and correct torque. The nut must be mounted concentrically with the spindle, and lateral loads should be avoided. The housing must be fastened with specified screw-in depths and tightening torques to prevent screws from being pulled out under stress.
The safety trap nut monitors wear by measuring the gap between the nut and the safety trap nut, which corresponds to half the trapezoid thread pitch in the new state.
The ball screw KGT must be handled carefully to prevent the balls from falling out. It is not self-locking, requiring a braking motor or spring-loaded brake. The R-version allows nut removal with a mounting sleeve, while the S-version includes unscrewing protection.
The protection tube cannot absorb lateral force and should not be used for support during transportation.
Screw jacks are pre-lubricated for life under standard conditions. Spindles in the S-version are pre-greased, while R-version spindles require cleaning and lubrication before use.
Ensure all coupled screw jacks move in the same direction. Bevel gearboxes can change movement direction.
Gearboxes can be levelled using couplings or shafts. During trial runs, check motor current and alignment. Tighten all joints before and after trials.
Avoid mechanical stops to prevent excessive force. Maintain safety distances and use frequency transformers for smooth operation. Monitor rotational speeds and forces to prevent damage.
Minimize noise with uniform acceleration ramps. Manage heat dissipation, especially with bellows, to prevent overheating.
Follow EMC and low-voltage directives. Ensure safe electrical connections and protect the motor from overload.
Regular lubrication is essential, with specific intervals for different components. Monitor wear and replace parts as needed.
Bellows, spiral springs, and spindle end attachments require careful handling and regular maintenance. Ensure proper alignment and use recommended lubricants and components.
The document outlines the use of 4-pole motors with a maximum rotational speed of 1400 rpm, with higher speeds requiring Nozag's permission. Motor torque can exceed rated torque temporarily, but should be limited with a frequency converter. For operations below 25 Hz, an external fan is necessary for cooling. Proper alignment of connecting shafts is crucial, and deviations should be minimal as specified in the catalogue. Various coupling and shaft types are discussed, with specific instructions for installation and torque requirements.
Limit switches must be tested before motor operation to avoid mechanical stops. If the motor does not stop completely, a braking motor is recommended. The spring-loaded brake must be kept clean and free from oil or grease, with a maximum temperature of 145°C. Separate activation is required when used with a frequency converter.
Instructions for installing handwheels, calotte disks, cardan pins, and support tubes are provided, emphasizing proper alignment and securing methods to prevent wear and ensure safety. Modifications to screw jacks and accessories require Nozag's approval.
Nozag offers custom gearboxes and assemblies, including spur gear drives, worm drives, and screw jacks. They provide a complete logistic chain from sourcing to delivery, ensuring quality and flexibility.
The document details various gear components, including spur gears, bevel gears, trapezoidal screws, and precision shafts. Nozag offers Swiss-made products with short delivery times and high flexibility, catering to specific customer needs.
Nozag's general terms apply to all services and products, with technical changes and improvements reserved. Documentation rights remain with Nozag, and unauthorized use is prohibited.
Catalog excerpts
System Program
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What counts is success – We help you achieve it Today clear competitive advantages and opportunities depend on flexibility, speed, innovation and continuous improvement. We understand that time has become one of the most significant competitive factors. In clearly defined markets, we offer advanced solutions that aim at optimum customer value. With internationally recognized quality, – our entire company is certified according to ISO 9001:2008 – high stock availability and maximum reliability, we aim at being a true partner for our customers. We are aware that a lasting partnership is built on...
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Product overview System Program 1 Screw jacks 2 Bevel gearboxes 3 Connecting shafts 4 Linear drives 5 Gear, worm gear 6 Customer-specific construction group Standard Program 1 Spur gears module 0.3 to 8 2 Bevel gears up to module 6 3 Worms and worm wheels 4 Standard racks 5 Trapezoid threaded screws, trapezoid threaded nuts 6 Chains and chain wheels 7 Couplings 8 Hardened precision steel shafts 9 Manufacturing according to drawing Request our separate catalog «Standard Program»
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Successful solutions It couldn’t be easier: www.nozag.ch ser-friendly catalog. If required, download individual catalog U pages for your documentation. ■ D-CAD download from the entire range of Nozag products If you wish to be advised or supported in any way, we will be pleased to do this by phone or on site. As a drive systems specialist, we deal with the development, manufacture and sale of standard or custom-designed gear components, sprockets, screw jacks, bevel gear drives, linear drives as well as other drive system components and special gears. Nozag’s products are manufactured mainly...
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Assembly and Operating Manu Individual products and services Modular system / Layout procedure / Practical applications / Application requirements / Base values / Design/Calculation 2. Screw jacks, non-rotating Application examples / Checklist / Sizes/System overview / Sizes/Models / Attachments / Length determination / Section drawing 3. Screw jacks, rotating g. Application examples / Checklist / Sizes/System overview / Sizes/Models / Attachments / Length determination / Section drawing Connecting shafts / Pedestal bearings / Clamp coupling / Flexible couplings / Bevel gear LMA/ Bevel gear RM...
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Screw jacks from our own production facility To view the screw jack in all its facets as a standard machine element, that is a dream of many designers and machine builders. Defined force up to 1000 kN ■ ational design through complete modular sets – through-and-through R compatible ■ verything from a single source minimises the procurement effort E ■ upply of pre-assembled units and assemblies including motors S ■ hort delivery times S ■ onstant speed forward and back, corresponding to the rotational speed C of the drive motor ■ djustable stroke We have already accepted this challenge a few years...
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Non-rotating spindle The worm wheel is provided with a female thread and converts the rotational movement into an axial movement of the spindle, when the latter is prevented from rotating (through its design or by means of an anti-rotation protection in the protection tube). Rotating spindle The spindle has a fixed connection to the worm wheel and rotates with it. The nut therefore screws itself up and down.
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1.2 Modular system General/Basics The modular, flexible and innovative screw jack kit in a wide performance range from 2 to 1000kN makes perfect drive solutions from low-cost standard components. Through the new gearbox series N, the kit not only includes the use of high-quality materials, innovative coatings and high-performance components, but is also subject to the highest standards of functionality, quality and design. Your construction will be simpler and cost effective > Easy assembly with standardized individual components from the kit. You save time > less specific designs, because of...
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1.3 Layout procedure General/Basics Feasibility study 1. Quotation 2. Technical drawing 3. Purchase order 1. Delivery 2. Assembly and installation 3. Commissioning Design 1. Tensile or compressive load 2. Buckling 3. Lifting speed 4. Critical bending speeds 5. Duty cycle Do come to us with your concerns and wishes. We would be happy to discuss this situation with you and consider the problem. After the analysis, we will define the objectives that have to be reached in terms of content, scope and time. Ambient conditions 1. Chemicals, aggressive media 3. Corrosion 4. Temperatures, humidity 5....
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1.4 Practical applications General/Basics Practical applications 1 Packaging Correct height setting for filling 2 Research Exact positioning of the measuring instrument for sunlight 3 Sunshade Opening and closing the sunshade 4 Silo cover Controlled closing and opening of the cover 5 Textile industry Reliable positioning despite vibrations 6 Solar tracker Fine-positioning of solar panels 7 Space Travel Exact levelling, due to individually controllable lifting jacks 8 Lifting carriage Manual positioning of pipes 9 Garage lift Space-saving solution through lifting one of the vehicles 10 Vacuum...
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1.4 Practical applications General/Basics
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1.5 Application requirements General/Basics Selection of Screw Jack System and Arrangement Application requirements S-Version standing spindle R-Version rotating spindle Parameter see checklist (page 29–30) Parameter see checklist (page 65–66) Pre-selection of screw jack size System overview (page 31) Pre-selection of screw jack size System overview (page 67) Tension load Compression load Compression load Tension load Buckling calculation (page 17–18) Buckling calculation (page 17–18) Critical speed (page 19–20) min. spindle diameter (possibly select a bigger screw jack type and check again)...
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1.5 Application requirements General/Basics Construction and layout The selection or the dimensioning is determined by the customer, since we are not familiar with the construction conditions like the place of application and the type of operation. If desired, we can be of help for the selection and design of the layout, and can generate assembly drawings and calculations for you on the basis of your rating parameters, as suggestions. The gearboxes are conceived in accordance with the load and duty cycle shown in the catalogue, for industrial purposes. We request you to check with us for any...
Open the catalog to page 13All Nozag catalogs and technical brochures
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