Note: This section references the Konami Valkyrie Volume Assembly

This description is written based off detailed inspections of a SDVX Valkyrie Cabinet intended for the Japanese market.

1. VOLUME BASE

Konami Part UNKNOWN

U Bracket. Has a 14mm hole in the center to fit the volume shaft's bearing and a slot for the potentiometer assembly tab to fit into.

2. BOTTOM BEARING

Konami Part UNKNOWN

MF148ZZ

3. VOLUME SHAFT

Konami Part UNKNOWN

6mm to 6mm female to male coupler/extension shaft that adapts the pot's stem to the knob head. Has a hole directly above the coupler for a φ1.6mm L12mm dowel (a) that the torque limiter sits on. Takes 2x M4x4 hex set screws (d) with "W point" cup and conical tips to couple to the pot shaft. The bottom-most part of the shaft is 12mm in diameter to accommodate the bearing MF148ZZ(press fit onto the shaft). There is also an e-clip on the shaft above the torque limiter but below where the bearing block would sit.

4. TORQUE LIMITER

Konami Part UNKNOWN, TOK TLE1-618-5W, TOK TLEU1-618-5W variant

A hysteresis bearing type torque limiter, commonly used in expensive printers on paper feeders. Smooths and dampens rotations from jitter and excess spinning. For specifications see Tok's respective product page

5. VOLUME COVER ASSEMBLY

Konami Part UNKNOWN

Meta part assembly consisting of parts 8 and 9, below. Appears to be threadlocked together from the factory.

6. VOLUME KNOB

Konami Part UNKNOWN

This part is NOT dimensionally identical between the Nemsys and Valkyrie Volume Assemblies. Valkyrie knobs have a 2mm counterbore underneath the knob whereas Nemsys knobs have a 2.5mm counterbore. Valkyrie knobs fit on both assemblies without issue, Nemsys knobs on Valkyrie assemblies have a risk of rubbing

The metal thing you turn with your hands. Machined out of solid aluminum, takes 2x M4x5 hex set screws (c) with "W point" cup and conical tips to secure it to the 6mm shaft. φ30/H25mm, has a lip to prevent backing out and is ribbed. A few vendors sell an aftermarket knob compatible with the arcade cabinets.

7. VOLUME ASSEMBLY

Konami Part #114544790000 for the L bracket, #114502880000 for the pot, nut and washers.

This part is dimensionally identical between the Nemsys and Valkyrie Volume Assemblies

The potentiometer is a Sensatec ELV-24Y36A-K which is now discontinued. See the linked page for equivalent alternatives. It comes with the necessary fastening hardware.

8. VOLUME COVER

Konami Part UNKNOWN

Bracket that mounts to the back of the deck. Has a 20mm hole to accommodate the bearing block and is secured by 4x phillips M3x10 screws. Has threaded shafts riveted in the sides for 2x M4 serrated wing hex nuts to attach the bottom assembly. The other 4 holes are to mount to the back of the deck and take the same nuts. About 3mm thick.

9. VOLUME COVER BEARING BLOCK

Konami Part UNKNOWN

CNC aluminum part that houses the top bearing and contains the grooves for the torque limiter tabs to sit in.

Uses the bearing 696ZZ which is not press fit and can be removed by hand

10. WASHER

Konami Part UNKNOWN

12mm OD, 6.2mm ID, 3mm thick.

Spaces the knob from the bracket so it doesn't rub. Commonly misplaced when removing the knob.