RFQ or shop for small metric bevel gears

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Hi Folks,

I hope someone can help me, I'm totally out of my depth with this.

I have a 'Buma' Boring Bar I'm trying to make accurate, the feed is controlled by an ACME thread of 0.75" x 6 TPI, the driven nut is bronze with a straight bevel gear machined into the top.

The threads have so much slop that a controlled cut is impossible.

RFQ or shop for small metric bevel gears

Straight Bevel GearStraight Bevel Gear Question

It has 24 teeth and I've measured the top down angle as 23.5 degrees, and the body is 1.612" in diameter.

I presume its of DP type not Module, due to it being British and quite old.

Ordering a suitable cutter shouldn't be too difficult, it's just working out by how much to tilt the diving head to get the taper tooth accurate, and calculating the root angle from the measured top angle, that the cutter needs to approach the cut.

I've a universal diving head and rotab to mount it on, to get the compound angles, if someone could point me in the right direction hopefully.

Thanks in advance for any help offered.

Bernard

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