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Acme Gridley 8" RPA-6 Replacement Parts, Tooling, and Attachments
Screw machine replacement parts catalog and code reference drawings for Acme Gridley 8" RPA-6 multi spindle screw machines. These code reference parts catalog and attachment layout drawing pages below identify and list replacement parts for National Acme built Acme Gridley 8" RPA-6 automatic 6-spindle lathe screw machines.
This 8" RPA-6 spare parts catalog section is currently under construction and some catalog pages or parts lists may not yet be active or available to view. Please check back again soon as we are continually expanding our multispindle online parts catalogs.
Acme Gridley 8" RPA6, 8" RPA8 Spindle Speed & Feed Gears
Feed change gears 112 teeth per set
Spindle speed gears 112 teeth per set
3"-6 spline, 2" face, 6/8 pitch helical
Other compatible screw machines below
| NUMBER OF TEETH |
PART NUMBER | RH OR LH |
| 26 | BU-88238 or NA3-26R | R |
| 27 | BU-88373 or NA3-27R | R |
| 28 | BU-88239 or NA3-28R | R |
| 29 | 02679-1 or NA3-29R | R |
| 30 | BU-88240 or NA3-30R | R |
| 31 | 02679-2 or NA3-31R | R |
| 32 | BU-88241 or NA3-32R | R |
| 33 | 02679-3 or NA3-33R | R |
| 34 | BU-88242 or NA3-34R | R |
| 35 | BU-88377 or NA3-35R | R |
| 36 | BU-88243 or NA3-36R | R |
| 37 | 02679-4 or NA3-37R | R |
| 38 | BU-88244 or NA3-38R | R |
| 39 | 02679-5 or NA3-39R | R |
| 40 | BU-88245 or NA3-40R | R |
| 41 | 02679-6 or NA3-41R | R |
| 42 | BU-88247 or NA3-42R | R |
| 43 | 02679-7 or NA3-43R | R |
| 44 | BU-88249 or NA3-44R | R |
| 45 | 02679-8 or NA3-45R | R |
| 46 | BU-88251 or NA3-46R | R |
| 47 | 02679-9 or NA3-47R | R |
| 48 | BU-88253 or NA3-48R | R |
| 49 | BU-88384 or NA3-49R | R |
| 50 | BU-88255 or NA3-50R | R |
| 51 | 02679-10 or NA3-51R | R |
| 52 | BU-88257 or NA3-52R | R |
| 54 | A-80387 or NA3-54R | R |
| 63 | 02679-23 or NA3-63R | R |
| 69 | 03062-18 or NA3-69R | R |
| 77 | A-80400 or NA3-77R | R |
| 31 | A-80379 or NA3-31L | L |
| 39 | 03062-19 or NA3-39L | L |
| 45 | 02679-22 or NA3-45L | L |
| 46 | BU-88252 or NA3-46L | L |
| 48 | BU-88254 or NA3-48L | L |
| 51 | 02679-11 or NA3-51L | L |
| 52 | BU-88258 or NA3-52L | L |
| 53 | BU-88386 or NA3-53L | L |
| 54 | BU-88260 or NA3-54L | L |
| 55 | 02679-12 or NA3-55L | L |
| 56 | BU-88262 or NA3-56L | L |
| 57 | 02679-13 or NA3-57L | L |
| 58 | BU-88264 or NA3-58L | L |
| 59 | 02679-14 or NA3-59L | L |
| 60 | BU-88265 or NA3-60L | L |
| 61 | 02679-15 or NA3-61L | L |
| 62 | BU-88266 or NA3-62L | L |
| 63 | 02679-16 or NA3-63L | L |
| 64 | BU-88267 or NA3-64L | L |
| 65 | 02679-17 or NA3-65L | L |
| 66 | BU-88268 or NA3-66L | L |
| 67 | 02679-18 or NA3-67L | L |
| 68 | BU-88269 or NA3-68L | L |
| 69 | 02679-19 or NA3-67L | L |
| 70 | BU-88270 or NA3-68L | L |
| 71 | 02679-20 or NA3-67L | L |
| 72 | BU-88271 or NA3-68L | L |
| 73 | BU-88396 or NA3-67L | L |
| 74 | BU-88272 or NA3-68L | L |
| 75 | 02679-21 or NA3-67L | L |
| 76 | BU-88273 or NA3-68L | L |
| 78 | BU-88274 or NA3-67L | L |
| 80 | BU-88275 or NA3-68L | L |
| 82 | A-80405 or NA3-67L | L |
These spindle speed gears and feed change gears are also compatible with the following National Acme screw machines:
Acme Gridley 10" RPA-6 hydraulic chucker
Feed change gears 108 teeth per set
Spindle speed gears 108 teeth per set
Acme Gridley 12" RPA-4 hydraulic chucker
Acme Gridley 12" RPA-6 hydraulic chucker
Feed change gears 112 teeth per set
Spindle speed gears 92 teeth per set
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