27mm Spindle Gear Drilling Head For Woodworking Boring Machine Spare Parts

Product Description

Replacing a stripped spindle gear starts with the code on the old part: 27 x 12 x 8 mm, 24 teeth, listed here as 27*12*8*24Z. It is the gear that sits on the drilling head of a woodworking CNC boring machine, stocked in left-hand and right-hand versions, because the two ends of a boring head do not turn the same way. Three companion sizes - 34 x 12 x 8, 34 x 12 x 12 and 41 x 12 x 8 - ship from the same family. Lead time is 1-7 working days.

A multi-spindle boring head loses production to three things. One gear shears its teeth and the head stops, because a row cannot run with a spindle that no longer turns. The replacement arrives with the wrong hand, so it will not mesh with the gear beside it. And the code is unreadable, because the gear sits behind the spindle housing where nobody wrote it down.

This is that gear: the spindle gear for the drilling head of a woodworking CNC boring machine, 27 x 12 x 8 mm with 24 teeth, catalogued as 27*12*8*24Z. Left-hand and right-hand are both available, which is the whole point - a head carries both, and the two must turn opposite to each other.

One family covers four positions: this 27 mm gear, 34 x 12 x 8 with 31 teeth, 34 x 12 x 12 with 31 teeth and 41 x 12 x 8 with 38 teeth. One order re-gears a whole row instead of four separate purchases.

It ships as a woodworking machinery spare, made in mainland China, with customized OEM supported when your tooth count is not on the list. Packaging is bulk, lead time is 1-7 working days, support is online plus video, and the price is quoted per gear because it moves with the size and the hand.

Product Features

Four numbers and two hands decide whether the gear drops onto your boring head:

• 27 x 12 x 8 mm, 24 teeth - the whole order is that code, 27*12*8*24Z, so the part is matched on four numbers.
• Left hand and right hand - both versions are stocked for the two ends of one drilling head, so a pair ships together.
• Four sizes in one family - 27 x 12 x 8 / 24Z, 34 x 12 x 8 / 31Z, 34 x 12 x 12 / 31Z and 41 x 12 x 8 / 38Z.
• Drilling head position - the gear drives the spindle of a CNC boring machine drilling head, at 24 teeth.
• Woodworking spare - listed as a spare for woodworking CNC drilling and boring machines, not for routers.
• OEM tooth counts - customized OEM is supported, so a 26Z or 30Z gear is quoted from your drawing.
• 1-7 working days - the stated lead time for this gear, counted from order confirmation.
• Bulk packaging - gears ship loose in bulk, so a spare row can be held against a 24-tooth failure.
• Online and video support - after-sale help comes as online messages and video calls, enough to walk through a head re-gear.
• One origin - made in mainland China, so a repeat order of the same 27 mm gear comes from the same plant.

Product Parameters

Product Advantages

Most shops solve a stripped spindle gear one of two ways, and both cost a week:

• A gear, not a head rebuild. The 24-tooth gear is replaced on its own, so the boring head, the spindle units and the drill holders stay bolted to the machine.
• Both hands from one order. Ordering left-hand and right-hand together removes the classic mistake of fitting two gears that turn the same way and strip again in one shift.
• Four sizes, one purchase. 27, 34, 34 and 41 mm covers both ends of a head, so one order re-gears a full row.
• The code is the order. 27*12*8*24Z is enough to quote - no machine brand, head model or year is needed.
• A short stop, not a long one. 1-7 working days is the stated lead time, counted from order confirmation, so one stripped gear does not become a quarterly shutdown.
• OEM when the marking is gone. If the old gear has lost its teeth and its stamp, a drawing with 24 teeth and the three sizes is enough for a customized gear.
• Buy the wear set, not one piece. Bulk packaging means the gears are not boxed one by one, so a spare row of 24-tooth gears fits on the shelf.
• Support reaches the machine. Video technical support means the mesh can be checked with the head still open.

Frequently Asked Questions

How do I check that 27*12*8*24Z is the gear I need?

Read the four numbers off the old gear. Measure 27 mm across the outside, 12 mm and 8 mm on the other two faces, and count 24 teeth; when the stamp is gone, the tooth count is the number that identifies it, because a 31Z or 38Z gear will not mesh.

Do I need both a left-hand and a right-hand gear?

Yes, if both ends of the head are worn. The two ends of a boring head turn in opposite directions, so the same hand cannot serve both seats; this model is stocked in left-hand and right-hand, and one order can carry both.

What does the Z in 24Z mean?

Teeth. 24Z is 24 teeth on a 27 x 12 x 8 mm gear, which is the same way the companion sizes are written: 31Z for the two 34 mm gears and 38Z for the 41 mm one.

Can you supply 34*12*8-31Z, 34*12*12-31Z and 41*12*8-38Z too?

Yes. All three ship from the same family as this 27 mm gear, listed as 34 x 12 x 8 with 31 teeth, 34 x 12 x 12 with 31 teeth and 41 x 12 x 8 with 38 teeth, so one order can rebuild a whole drilling head row.

Can you make a gear with a different number of teeth?

Yes. Customized OEM is supported, so a tooth count outside 24Z, 31Z and 38Z is quoted from your drawing, with the three body sizes and the hand marked on it.

How fast can the gear ship?

1-7 working days from order confirmation, the lead time stated for this part. Bulk packaging means the gear leaves without individual boxing, so nothing is added to that window.

How are the gears packed?

Bulk packaging, gears loose rather than boxed one by one. That is why a spare row of 24-tooth gears can be held against the next failure without paying for ten separate cartons.

What support do I get after the gear arrives?

Online support and video technical support. Send a photo of the gear in the head and the hand of the seat, and the mesh and the tooth count can be checked on a call before the machine goes back into production.