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Worm gear sets. Catalogue worm gear sets and customised worm gear sets

Worm gear sets. Catalogue worm gear sets and customised worm gear sets
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Worm gear sets. Catalogue worm gear sets and customised worm gear sets

Product catalog summary
Overview
Framo Morat GmbH & Co. KG specializes in producing high-quality worm gear sets, offering both standard and customized solutions. Their products are recognized for advanced manufacturing techniques and extensive experience, gaining significant market share in Germany and internationally.
Specifications
Standard worm gear sets are available with various center distances and transmission ratios, with customization options. The pressure angle is typically 15°, enhancing radial force conditions and reducing noise and wear compared to the DIN standard of 20°.
Materials
  • Worms: Made from case-hardened steel.
  • Brass Worm Gears: Composed of a copper-zinc alloy with aluminum, silicon, and manganese for improved sliding characteristics and corrosion resistance.
  • Plastic Worm Gears: Suitable for low sliding speeds and medium tooth pressure.
  • Bronze Worm Gears: Available in various compositions for different speed and torque requirements.
  • Cast Iron Worm Wheels: Suitable for low planning speeds.
Performance Factors
Torque and lifetime factors are provided to adjust for different operating conditions. Efficiency is influenced by lead angle, running speed, lubrication, and mounting conditions.
Self-Locking
Self-locking capabilities depend on the lead angle and lubrication type. Dynamic and static self-locking are possible under specific conditions, but factors like shocks and vibrations can negate self-locking.
Customization
Framo Morat offers customized worm gear sets with center distances ranging from 17 to 125 mm and a maximum worm gear diameter of 200 mm, providing comprehensive support including material selection and lubrication advice.
Mounting and Efficiency
Proper mounting is crucial for optimal performance, with guidelines for contact patterns and lateral adjustments. Efficiency is generally higher with increased center distances and optimal mounting conditions.
General Tolerances
General tolerances are specified according to DIN ISO 2768-mH, with a tolerance range of +0.2 to -0.2 and +0.4 for certain dimensions. Workpiece edges are defined by DIN ISO 13715 with a tolerance of -0.4.
Material Specifications
Worms are made of case-hardened and ground steel with a hardness of HV 620 - 700, and a lead content of ≤0.1%. Worm gears are made of CuZn37Mn3Al2Si, also with a lead content of ≤0.1%. Alternative materials like plastic or HGW 2083 are available upon request.
Product Specifications
The document details various worm and worm gear sets, including gear ratios, lead angles, modules, number of threads, pitch diameters, and output torque.
Efficiency Factors
Efficiency factors are provided for different input speeds and lubrication types. For instance, at 2800 rpm, the efficiency factor for U2 with mineral oil is 0.84.
Technical Notes
The document includes notes on tolerancing according to ISO 8015:2011 and size specifications per ISO 14405. It emphasizes the protection of document content under ISO 16016, prohibiting unauthorized reproduction or distribution.
Backlash Tolerances
Backlash tolerances vary depending on the pitch diameter and module size, with specific values provided for different ranges.
Lubrication
Lubrication is crucial for efficiency, heat generation, and lifespan. Synthetic oils based on polyglykol and polyalphaolefin are recommended for their high compatibility with sealing materials.
Comparison of Oils
The document compares mineral oil, polyalphaolefin synthetic oil, and polyglykol synthetic oil across various characteristics, highlighting the superior performance of polyglykol synthetic oil in wear protection and frictional behavior.
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Catalog excerpts

Worm gear sets. Catalogue worm gear sets and customised worm gear sets-1

Worm gear sets. Catalogue worm gear sets and customised worm gear sets.

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Worm gear sets. Catalogue worm gear sets and customised worm gear sets-3

Advanced production methods combined with years of experience in manufacturing gears and providing customers with sound advice have made Framo Morat's worm gear sets a byword for quality. In recent decades Framo Morat worm gear sets have won appreciable market shares both in Germany and abroad. Besides our catalogue worm gear sets (made to the Framo Morat standard), which we keep in stock in moderate quantities, we also manufacture customised worm gear sets in compliance with customer specifications. Our catalogue worm gear sets are generally available in a wide range of centre distances and...

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Worm gear sets. Catalogue worm gear sets and customised worm gear sets-4

Plastic worm gears Plastic worm gears are suitable for low sliding speeds (< 1.5 m/s) and medium tooth pressure due to their bad thermal conductivity. Worms have to be hardened and ground. The thermal expansion coefficient is appr. 4 times higher than with brass. Therefore the backlash shouldn't be too small. Bronze worm gears Cu Sn 12 DIN EN 1982 Comparatively soft material with good wear resistance, suitable for high sliding speeds. Cu Sn 12 Ni DIN EN 1982 Comparatively soft material with very good wear resistance, suitable for very high sliding speeds. ݑǰݑǰݑǰݑ2 ǰݑӰݑӰݑӰݑ2 Ӄ װݑӰݑӰݑӰݑ3 and low...

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Worm gear sets. Catalogue worm gear sets and customised worm gear sets-5

5 Application factors Due to the wide range of applications the following factors are recommendations which enable the customer to choose the correct configuration. The case temperature shouldn't exceed 80°C. shocks duty cycle duty cycle factor f3 2. Calculation example (with consideration of the operating conditions) worm gear set A40 Ü35; T2 = 65,6 Nm (see above), but with the following operating conditions: - heavy shocks - 360 starts / h - 100 % duty cycle Output torque The relationship between life time, speed and torque can be calculated by these simplified formulas Calculation of the life...

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Worm gear sets. Catalogue worm gear sets and customised worm gear sets-6

A number of factors associated with lubrication, running speed and loading can favour slip characteristics to Shocks or vibrations can neutralize self-locking. such an extent that self-locking is counteracted. A number of factors associated with lubrication, running speed and loading can favour slip characteristics to Therefore it is impossible for us to accept warranty obligations in respect to self-locking. such an extent that self-locking is counteracted. Therefore it isworm impossible Mounting of the gear for us to accept warranty obligations in respect to self-locking. Mounting of the worm...

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Worm gear sets. Catalogue worm gear sets and customised worm gear sets-7

ground geschliffen Achsabstand center im Gehäuse distance i = gear ratio γm = lead angle m m = module z1 = number of threads (worm) dm1 = pitch diameter (worm) da1 = tip diameter (worm) z2 = No. of teeth (worm gear) dm2 = pitch diameter (worm gear) dA = max. diameter (worm gear) T2 = output torque MG = mineral grease MO = mineral oil / synthetic grease SO = synthetic oil 1,6 1,9 DIN ISO2,4 Allgemeine Toleranz 2768-mH general tolerances DIN ISO 2768-mH Weitergabe10 sowie Vervielfältigung dieses Verwertung Mitteilung A17U10 11°48‘ 0,75 Dokuments, 3 11,0 und 12,5 seines Inhalts sind verboten, soweit...

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Worm gear sets. Catalogue worm gear sets and customised worm gear sets-8

i = gear ratio Ym = lead angle m m = module z, = number of threads (worm) dm1 = pitch diameter (worm) d = tip diameter (worm) z2 = No. of teeth (worm gear) dm2 = pitch diameter (worm gear) dA = max. diameter (worm gear) T2 = output torque MO = mineral oil / synthetic grease All worms and worm gears stocked right hand only. Worm made of case hardened and ground steel (HV 620 - 700). Lead content is <0.1 percent by weight. Worm gear made of CuZn37Mn3Al2Si. Lead content is <0.1 percent by weight. On request worm gears can be made of plastic or HGW 2083. Framo Morat GmbH & Co. KG Tel.: +49 (0) 7657...

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Worm gear sets. Catalogue worm gear sets and customised worm gear sets-9

ground geschliffen center Achsabstand im Gehäuse distance i = gear ratio γm = lead angle m m = module z1 = number of threads (worm) dm1 = pitch diameter (worm) da1 = tip diameter (worm) z2 = No. of teeth (worm gear) dm2 = pitch diameter (worm gear) dA = max. diameter (worm gear) T2 = output torque MG = mineral grease MO = mineral oil / synthetic grease SO = synthetic oil Allgemeine Toleranz DIN ISO 2768-mH 6 tolerances7,2 9 general DIN ISO 2768-mH Observe protection marks ISO 16016 Weitergabe sowie Vervielfältigung dieses Dokuments, Verwertung und Mitteilung DIN ISO 13715 A25U15 15:1 soweit 6°29‘...

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Worm gear sets. Catalogue worm gear sets and customised worm gear sets-10

ground geschliffen Achsabstand center im Gehäuse distance i = gear ratio γm = lead angle m m = module z1 = number of threads (worm) dm1 = pitch diameter (worm) da1 = tip diameter (worm) z2 = No. of teeth (worm gear) dm2 = pitch diameter (worm gear) dA = max. diameter (worm gear) T2 = output torque MG = mineral grease MO = mineral oil / synthetic grease SO = synthetic oil 5:1 protection 23°46‘ 1,316016 Observe marks ISO A31U6Weitergabe sowie 6:1 18°13‘ 1,3 5 20,8 23,4 Vervielfältigung dieses Dokuments, Verwertung und Mitteilung The reproduction, distribution and utilization of this document as...

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Worm gear sets. Catalogue worm gear sets and customised worm gear sets-11

ground geschliffen Achsabstand center im Gehäuse distance i = gear ratio γm = lead angle m m = module z1 = number of threads (worm) dm1 = pitch diameter (worm) da1 = tip diameter (worm) z2 = No. of teeth (worm gear) dm2 = pitch diameter (worm gear) dA = max. diameter (worm gear) T2 = output torque MG = mineral grease MO = mineral oil / synthetic grease SO = synthetic oil A31U38 38:1 5°1' 1,25 1 14,3 16,8 Weitergabe sowie Vervielfältigung dieses Dokuments, Verwertung und Mitteilung seines Inhalts sind verboten, nicht ausdrücklich A31U45 45:1 soweit 3°23' 1 gestattet. 1 Zuwiderhandlungen verpflichten...

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Worm gear sets. Catalogue worm gear sets and customised worm gear sets-12

ground geschliffen center Achsabstand im Gehäuse distance *Range within which the width tolerance of the keyway is dimensionally accurate. Outside this range, the width of the keyway can be larger due to the process. i = gear ratio γm = lead angle m m = module z1 = number of threads (worm) dm1 = pitch diameter (worm) da1 = tip diameter (worm) z2 = No. of teeth (worm gear) dm2 = pitch diameter (worm gear) dA = max. diameter (worm gear) T2 = output torque MG = mineral grease MO = mineral oil / synthetic grease SO = synthetic oil wormgear Weitergabe sowie Vervielfältigung Dokuments, 12:1 11°14‘...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.