Made simple: Design and operating principle of a low-backlash planetary gearbox

[@geniumme2502]

40.000 views and no comments :( Thanks for the video :)

[@WITTENSTEIN_group]

Now, we have at least one. Thanks for the comment! :-)

[@yruhatin100]

What is a backlash? What makes this a low backlash gear system? How good is it compared to other similar systems?

[@tpmvalves5721]

Very helpfull, thank you

[@ngoducdung]

We are using your SP type, but It broken frequency . Do you share the cause let's it broken ? It is life time lubrication.

[@WITTENSTEIN_group]

Please contact your local sales representative or customer service directly at [e-mail] to further investigate your individual case.

[@abdulwajid4451]

Sun gear 48 teeth Planet gear 24 teeth Ring gear 96 Now ring gear is fixed. Input sun gear 3 revolution Output carrier ? revolution and how? I want to know it's working. It is like puzzle.

[@foziljon3307]

👍

[@automaticweldingsystems116]

good

[@medicomedy5373]

also have them for ac servo motor 1.8kw 110ST-M06030

[@Jane-es9ez]

why dont you put teeth on the outer diameter of the ring and add another planetary to move the same speed so the outer planetary is bigger and it makes a 1 to 1 ratio increase torque why didnt anyone put teeth on the outer diameter of the ring

[@013grandhimanohar7]

What if Sun gear (CW):-input Planet gear fixed (not planet shaft) What about the ring gear?????CW or CCW or doesn't rotate

[@WITTENSTEIN_group]

Hello Grandhi Manohar, we are not completely sure, what you are exactly want to know. If the sun gears rotates and the planets are fixed nothing is moving. Best regards from your WITTENSTEIN Social Media Team

[@SANDMAN_66]

@@WITTENSTEIN_group wouldnt the gear ratio for fixed ring gear be the speed of the sun vs the speed of the planetary wheel (1+(Sw/Rw))? Also in the case of planets being fixed by a fixed planetary wheel, the ring would then be spinning, which would make the gear ratio the speed of the sun to the speed of the ring

[@WITTENSTEIN_group]

Hello @@SANDMAN_66 , There are several approaches to calculate the resulting ratio. In the video we show the easiest method - dividing the input speed through the output speed. This follows the basic definition of gearboxes and is therefore applicable for all types. You can also use the ratio between the diameter of the ring gear and the sun wheel or the number of the teeth. For a fixed ring gear, the sun wheel being the input and the planetary wheel being the output, you calculate: i = 1 - (-(number of teeth ring gear)/number of teeth sun wheel) Using speeds: i = speed sun wheel [rpm] / speed planetary wheel [rpm] For a fixed planetary wheel, the sun wheel being the input and the ring gear (=housing) being the output, you calculate: i = -(number of teeth ring gear/number of teeth sun wheel) This is always negative due to a change in rotary direction. Using speeds: i = speed sun wheel [rpm] / speed ring gear [rpm] Please note the change in direction, therefore input the speed of the ring gear as a negative value. Best regards from your WITTENSTEIN Social Media Team

[@WITTENSTEIN_group]

Hi Andriy, the type and amount of lubrication differs by gearbox type, size and in some cases the customer’s application. Standard gearboxes use a closed chamber design and are lubricated for life with an industry grade oil or grease with the option to go food grade.

[@BatMan-ns9wh]

Hi. Thanks for your reply. What lubrication would you recommend for small planetary gearbox with straight cut gears, 90mm in diameter, 12000 input 2000 output rpm, 50Nm output torque?

[@فيصلالسرحان-ب6ف]

حكم دوه ()شلوم خبيبي ()

[@justiceanddevelopments873]

Really I’m Surprised 😮 44k Views but 2k Subscribes with One Comment😇

[@catthecommentbothunter6890]

Where is the moon gear and the astroid belt gear?🤣🤣🤣

[@gordon6029]

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