What is the final drive ratio of a 941 row crop?

warbaby · Jan 12, 2019

Hi,
I know I have seen it somewhere, but cant find it now! What is the actual rear axle ratio on a row-crop 01 series tractor after it passes through and is altered by the set of bull gears to the rear tires?
What is the reduction (or the number of teeth on each gear in the pair) value of the gearset?
Thank You!

Bob · Jan 12, 2019

15 teeth driving 32 teeth, .46875 to 1.

Bob · Jan 12, 2019

I stated that backwards, should be 2.133 to 1.

warbaby · Jan 12, 2019

Thank You Bob!
Sooo... the ring and pinion in this tractor are 43 and 6 teeth, 43 divided by 6 = 7.17 so the ratio coming out of the differential and going down the axle shaft into the 15 toothed bull gear is 7.1:1. The bottom 32 toothed gear divided by the upper 15 toothed gear is 2.133:1.

7.17 MULTIPLIED by 2.133 = 15.29361, so the final ratio at the wheel is 15.29:1?

THAT seems awfully low!

warbaby · Jan 12, 2019

maybe it should be 7.17 + 2.13? That would equal 9.3, and a final ratio of 9.3:1 sounds far more reasonable than 15.29:1!

JMOR · Jan 12, 2019

(quoted from post at 16:55:39 01/12/19) maybe it should be 7.17 + 2.13? That would equal 9.3, and a final ratio of 9.3:1 sounds far more reasonable than 15.29:1!

ot add, multiply.

What is the final drive ratio of a 941 row crop?

warbaby

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Bob

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Bob

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warbaby

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warbaby

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JMOR

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