[RETRO ARMS] CNC gearbox V2 DSG, TSG (8mm) - QSC

DSG (Dual Sector Gear) special gear that cocks twice in one rotation or
This is a V2 gearbox designed exclusively for TSG (Triple Sector Gear).

This gearbox shortens the cylinder by the unused capacity due to the short stroke.
The piston rail has been extended accordingly to prevent irregular wear.
The package includes a dedicated stainless steel cylinder with a total length of 52 mm.

In addition, regular single sector gears can be used as long as they have up to 9 teeth.

This gearbox is electronically triggered from the start (compatible with Jefftron, GATE, Shiranui Shoten, etc.)
It is designed to not support physical switches that use cut-off levers.
Please be careful.

The 2025 version features the company's CNC Lateral adjustment of gearbox alignment, which allows adjustment of the left and right alignment of the gearbox.
Yes, it is supported.
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Furthermore, this gearbox has a guide bearing at the top,
By supporting the top of the piston, the piston rail is prevented from rubbing strongly against the gearbox side.
It is designed to reduce resistance when reversing and improve the cycle even slightly.

Because of this guide bearing, when reducing the weight of the piston by removing the material,
Avoid drilling holes on the top surface of the piston.
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The wiring guard under the motor tower/pinion gear is still in good condition.
It is a perfect match for the wiring of the electronic trigger.
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Common precautions for all gearbox versions
Be sure to use a cylinder head that fits tightly against the gearbox, as shown in the image above.
For example, the G&G genuine cylinder head cannot be used because it creates gaps.

If there is even a small gap, the piston impact will be received by the rotation stopper protrusions on the left and right, causing damage.
Ideally, it should fit snugly against the gearbox, with enough clearance to move slightly backwards.
For the same reason, cylinder heads with O-rings or rubber dampers on the contact surface with the gearbox are also used.
Never use it.

The shaft hole size is Φ8mm H7 (0 to +15μm). Use press-fit or adhesive depending on the bearing you are using.
When using anaerobic adhesives for bonding, the gearbox side is anodized and inert.
If the bearing side is also stainless steel, which is an inert metal, there is a high possibility that the adhesive will not harden.
Use an activator for inert metals.

The bearing hole is equipped with a rotation prevention protrusion, so the company's CNC ANTIROT bushings 3mm
It is compatible with.