The Maki Ace MA group uses a single worm mesh to turn the power path through 90 degrees. Solid and hollow output arrangements support different machine interfaces, and the catalog separates horizontal worm positions from vertical output configurations. The MAL variants cover two frame sizes within the same family.

Models and shaft configurations
| Model or configuration | Application and construction |
|---|---|
| MA | Solid output shaft |
| MAO | Hollow output shaft |
| MAB / MAW / MAK | Worm below the wheel / worm above the wheel / vertical output shaft |
| MALB / MALOB | MAL lower-worm layouts with solid or hollow output |
| MALW / MALOW | MAL upper-worm layouts with solid or hollow output |
| MALK / MALOK | MAL vertical output layouts with solid or hollow output |
| ES / NS | Servo motor configuration / servo adapter option, subject to the selected frame and arrangement |
Frame sizes and selection data
| Parameter | Catalog specification |
|---|---|
| Standard catalog center distances | 25, 32, 40, 50, 63, 80, 100, 125, 140 and 160 mm |
| Additional frame reference | The product page also lists size 200 at the end of the range. Confirm its applicable drawing and ratings separately. |
| MAL frame sizes | 50 and 63 |
| Standard ratio choices | 10, 20, 30, 40, 50 and 60 |
| Additional ratio choices | 15 and 25 for the standard sizes 50–160 |
| Output options | Single-ended or optional double-ended solid shaft, or hollow output according to configuration |
Interpreting the configuration code
The standard ordering chart separates the output shaft type, B/W/K orientation, mounting foot, size, shaft arrangement, ratio and motor option. Confirm all of these fields when replacing an installed reducer. A matching ratio and frame size can still leave differences in shaft position or mounting pattern.
Motor and servo interfaces
Select an adapter using the motor flange and pilot, shaft diameter, shaft length and coupling dimensions. Use the selected frame and ratio to check input speed, equivalent inertia and starting duty. The catalog distinguishes the standard reducer rating from ratings for assembled motor combinations.


Information for selection and ordering
Specify the input speed, required output speed and torque, daily operating hours, starts per hour, load variation and ambient temperature. Include shaft orientation, handedness, coupling or pulley details, and any overhung or axial loads. Match the duty-adjusted requirement to the rating for the exact frame, ratio and input speed, then check thermal capacity, the mounting drawing and the lubricant specified for the installation.