MOTORS, DRIVES & RELATED EQUIPMENT

Motors, Drives & Related Equipment

Section 4

​4​MOTORS, DRIVES​& RELATED EQUIPMENT

SEW

Driving the world.

​Geared Motors \ Drive Electronics \ Drive Automation \ Industrial Gears \ Services ​Seeing the big picture​We drive industries​ Gear units and motors from SEW-EURODRIVE have always set the trend and established new standards in drive technology. For thisreason, the quality label “made by SEW” has become a hallmark of quality in the drive industry. […]

Direct drive or gearmotor - that is the question. A systematic analysis of advantages and disadvantages of both concepts

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​Eurodrive HouseAerodrome / Adcock Ingram Rd, AerotonP.O. Box 90004, Bertsham 2013Tel. (011) 248-7000Fax. (011) 494-2300 ​DIRECT DRIVES OR GEARMOTOR – THAT IS THE QUESTION. A SYSTEMATIC ANALYSIS OF THE ADVANTAGES AND DISADVANTAGES OF BOTH CONCEPTS​In the past few years, a trend towards slow-running direct drives has become visible. This trend is driven by a demand […]

Direct drive or gearmotor - that is the question. A systematic analysis of advantages and disadvantages of both concepts

p.56

​Eurodrive HouseAerodrome / Adcock Ingram Rd, AerotonP.O. Box 90004, Bertsham 2013Tel. (011) 248-7000Fax. (011) 494-2300 ​Fig. 2: Exemplary construction of the three direct drive motor principles for a speed reduction by 50% (i = 2)​This distinction of cases allows for direct expression of the frequency ratio, diameter ratio and length ratio depending on the intended […]

Direct drive or gearmotor - that is the question. A systematic analysis of advantages and disadvantages of both concepts

p.57

​Eurodrive HouseAerodrome / Adcock Ingram Rd, AerotonP.O. Box 90004, Bertsham 2013Tel. (011) 248-7000Fax. (011) 494-2300 ​Summing all up, figure 3 show the volume ratio between direct drives and geared motors for different speed ratios i taking the estimated volume of the gear unit into account:​Fig. 3: Volume ratio of a direct drive to the motor […]

Direct drive or gearmotor - that is the question. A systematic analysis of advantages and disadvantages of both concepts

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​Eurodrive HouseAerodrome / Adcock Ingram Rd, AerotonP.O. Box 90004, Bertsham 2013Tel. (011) 248-7000Fax. (011) 494-2300 ​Fig. 5: Ratio of moment of inertia of geared motors compared to direct drives at the output shafts against the speed ratio i ​The obvious conclusion would be to design motors for small moments of inertia as slender as possible, […]

Choosing the correct roller housed unit - step by step

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​Timken South Africa (Pty) LtdCnr Van Dyk & Edinburg RoadsBenoni SouthGauteng1502Tel: (011) 741-3800Fax: (011) 914-1648Website: www.timken.com ​CHOOSING THE CORRECT ROLLER HOUSED UNIT – STEP BY STEP​By: Brian Berg, Karen Cunningham and Mark Flaherty, The Timken Company​You need a roller bearing housed unit. How hard can it be to find the right one? Not hard at […]

Timken

Strength in Numbers

Choosing the correct roller housed unit - step by step

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​Timken South Africa (Pty) LtdCnr Van Dyk & Edinburg RoadsBenoni SouthGauteng1502Tel: (011) 741-3800Fax: (011) 914-1648Website: www.timken.com ​Figure 3. Housed units are often used in demanding applications – such as the conveyor system of a coal mine – to improve bearing performance.Housing Type and MaterialThe place to begin selecting the best roller unit option for your […]

Choosing the correct roller housed unit - step by step

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​Timken South Africa (Pty) LtdCnr Van Dyk & Edinburg RoadsBenoni SouthGauteng1502Tel: (011) 741-3800Fax: (011) 914-1648Website: www.timken.com ​Also, because the seal contacts the inner ring of the bearing, the potential for shaft damage due to seal wear is virtually eliminated.  ​Relubrication of housed units is often required to ensure proper bearing performance. Frequency and quantity of […]

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