NEMA 电动机机座尺寸
NEMA 电动机机座号、安装尺寸和轴伸尺寸参考数据。
nemaelectricalmotorframe
概述
NEMA（美国电气制造商协会）标准化了电机机座尺寸，以确保制造商之间的互换性。1984 年 NEMA 标准定义了安装和轴接口的关键机械尺寸。机座编号（42、48、56、140T 等）编码了近似轴高和机座尺寸。C（C 面安装）、H（更大的安装孔间距）和 J/P（射流泵轴）等后缀表示安装或轴变体。
NEMA 机座尺寸 — 小型机座 (42–56)
尺寸以英寸为单位。空白单元格表示该机座未指定该尺寸。
10 行
NEMA 机座 | 尺寸 E | 尺寸 BA | ||||
|---|---|---|---|---|---|---|
| 42 | 2.625 | 1.75 | 1.6875 | 2.0625 | 1.125 | 0.375 |
| 42C | 2.625 | 1.75 | 1.6875 | 2.0625 | 1.125 | 0.375 |
| 48 | 3 | 2.125 | 2.75 | 2.5 | 1.5 | 0.5 |
| 48C | 3 | 2.125 | 2.75 | 2.5 | 1.5 | 0.5 |
| 48H | 3 | 2.125 | 4.75 | 2.5 | 1.5 | 0.5 |
| 56 | 3.5 | 2.4375 | 3 | 2.75 | 1.875 | 0.625 |
| 56C | 3.5 | 2.4375 | — | 2.75 | 1.875 | 0.625 |
| 56H | 3.5 | 2.4375 | 5 | 2.75 | 1.875 | 0.625 |
| 56HZ | 3.5 | 2.4375 | 5 | 2.75 | 2.25 | 0.875 |
| 56J | 3.5 | 2.4375 | — | 2.75 | 2.4375 | 0.625 |
NEMA Frame Dimensions — Larger Frames (66–143)
6 行
NEMA 机座 | 尺寸 E | 尺寸 BA | |||||
|---|---|---|---|---|---|---|---|
| 66 | 4.125 | 2.9375 | 5 | 3.125 | 2.25 | — | 0.75 |
| 140T | 3.5 | 2.75 | 4 | 2.75 | 2.25 | — | 0.875 |
| 142AT | 3.5 | 2.75 | 3.25 | 2.75 | 1.75 | 1.5 | 0.875 |
| 143AT | 3.5 | 2.75 | 4 | 2.25 | 1.75 | 1.5 | 0.875 |
| 143JM | 3.5 | 2.75 | 4 | 2.25 | — | — | 0.875 |
| 143JP | 3.5 | 2.75 | 4 | 2.25 | — | — | 0.875 |
Dimension Reference
| Key | 说明 |
|---|---|
| D | Shaft center height (distance from base to shaft centerline) |
| E | Distance from shaft shoulder to mounting bolt center |
| 2F | Mounting bolt hole center-to-center distance (lengthwise) |
| BA | Mounting bolt hole center-to-center distance (widthwise) |
| N–W | Shaft extension length from face |
| V | Thread length on shaft |
| U | Shaft diameter |
还原的原始源表
以下表格还原自原始来源页面，以保留完整的参考数据。
Electrical Motors - NEMA Frame Dimensions
168 行
NEMA 机座 Designation | 机座 Dimensions (inches) | 机座 Dimensions (inches) | 机座 Dimensions (inches) | 机座 Dimensions (inches) | 机座 Dimensions (inches) | 机座 Dimensions (inches) | 机座 Dimensions (inches) |
|---|---|---|---|---|---|---|---|
| D | — | — | — | N-W | V | U | — |
| 42 | 2 5/8 | 1 3/4 | 1 11/16 | 2 1/16 | 1 1/8 | — | 3/8 |
| 42C | 2 5/8 | 1 3/4 | 1 11/16 | 2 1/16 | 1 1/8 | — | 3/8 |
| 48 | 3 | 2 1/8 | 2 3/4 | 2 1/2 | 1 1/2 | — | 1/2 |
| 48C | 3 | 2 1/8 | 2 3/4 | 2 1/2 | 1 1/2 | — | 1/2 |
| 48H | 3 | 2 1/8 | 4 3/4 | 2 1/2 | 1 1/2 | — | 1/2 |
| 56 | 3 1/2 | 2 7/16 | 3 | 2 3/4 | 1 7/8 | — | 5/8 |
| 56C | 3 1/2 | 2 7/16 | — | 2 3/4 | 1 7/8 | — | 5/8 |
| 56H | 3 1/2 | 2 7/16 | 5 | 2 3/4 | 1 7/8 | — | 5/8 |
| 56HZ | 3 1/2 | 2 7/16 | 5 | 2 3/4 | 2 1/4 | 2 | 7/8 |
| 56J | 3 1/2 | 2 7/16 | — | 2 3/4 | 2 7/16 | — | 5/8 |
| 66 | 4 1/8 | 2 15/16 | 5 | 3 1/8 | 2 1/4 | — | 3/4 |
| 140T | 3 1/2 | 2 3/4 | 4 | 2 3/4 | 2 1/4 | — | 7/8 |
| 142AT | 3 1/2 | 2 3/4 | 3 1/4 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 143AT | 3 1/2 | 2 3/4 | 4 | 2 1/4 | 1 3/4 | 1 1/2 | 7/8 |
| 143JM | 3 1/2 | 2 3/4 | 4 | 2 1/4 | — | — | 7/8 |
| 143JP | 3 1/2 | 2 3/4 | 4 | 2 1/4 | — | — | 7/8 |
| 143T | 3 1/2 | 2 3/4 | 4 | 2 1/4 | 2 1/4 | 2 | 7/8 |
| 143TC | 3 1/2 | 2 3/4 | 4 | 2 3/4 | 2 1/4 | — | 7/8 |
| 143TR | 3 1/2 | 2 3/4 | 4 | 2 1/4 | 2 5/8 | 1 3/4 | 7/8 |
| 144AT | 3 1/2 | 2 3/4 | 4 1/2 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 145AT | 3 1/2 | 2 3/4 | 5 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 145JM | 3 1/2 | 2 3/4 | 5 | 2 1/4 | — | — | 7/8 |
| 145JP | 3 1/2 | 2 3/4 | 5 | 2 1/4 | — | — | 7/8 |
| 145T | 3 1/2 | 2 3/4 | 5 | 2 1/4 | 2 1/4 | 2 | 7/8 |
| 145TC | 3 1/2 | 2 3/4 | 5 | 2 3/4 | 2 1/4 | — | 7/8 |
| 145TR | 3 1/2 | 2 3/4 | 5 | 2 1/4 | 2 5/8 | 1 3/4 | 7/8 |
| 146AT | 3 1/2 | 2 3/4 | 5 1/2 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 146ATC | 3 1/2 | 2 3/4 | 5 1/2 | 2 3/4 | 2 1/4 | — | 7/8 |
| 147AT | 3 1/2 | 2 3/4 | 6 1/4 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 148AT | 3 1/2 | 2 3/4 | 7 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 149AT | 3 1/2 | 2 3/4 | 8 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 1410AT | 3 1/2 | 2 3/4 | 9 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 1411AT | 3 1/2 | 2 3/4 | 10 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 1412AT | 3 1/2 | 2 3/4 | 11 | 2 3/4 | 1 3/4 | 1 1/2 | 7/8 |
| 1412ATC | 3 1/2 | 2 3/4 | 11 | 2 3/4 | 2 1/4 | — | 7/8 |
| 162AT | 4 | 3 1/8 | 4 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 163AT | 4 | 3 1/8 | 4 1/2 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 164AT | 4 | 3 1/8 | 2 1/2 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 165AT | 4 | 3 1/8 | 5 1/22 1/2 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 166AT | 4 | 3 1/8 | 6 1/4 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 167AT | 4 | 3 1/8 | 7 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 168AT | 4 | 3 1/8 | 8 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 169AT | 4 | 3 1/8 | 9 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 1610AT | 4 | 3 1/8 | 10 | 2 1/2 | 1 3/4 | 1 1/2 | 7/8 |
| 182 | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 1/4 | 2 | 7/8 |
| L182ACY | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 1/4 | 2 | 7/8 |
| 182AT | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| L182AT | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | — | 2 | 1 1/8 |
| 182JM | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | — | — | 7/8 |
| 182JP | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 3/4 | — | 7/8 |
| 182T | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 3/4 | 2 1/2 | 1 1/8 |
| 182TC | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 3/4 | — | 1 1/8 |
| 182TR | 4 1/2 | 3 3/4 | 4 1/2 | 2 3/4 | 2 1/4 | 2 1/4 | 1 1/8 |
| 183AT | 4 1/2 | 3 3/4 | 5 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 184 | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | 2 1/4 | 2 | 7/8 |
| 184AT | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 184JM | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | — | — | 7/8 |
| 184JP | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | — | — | 7/8 |
| 184TC | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | 2 3/4 | — | 1 1/8 |
| 184T | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | 2 3/4 | 2 1/2 | 1 1/8 |
| 184TR | 4 1/2 | 3 3/4 | 5 1/2 | 2 3/4 | 3 3/8 | 2 1/4 | 1 1/8 |
| 185AT | 4 1/2 | 3 3/4 | 6 1/4 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 186ACY | 4 1/2 | 3 3/4 | 7 | 2 3/4 | 2 1/4 | 2 | 7/8 |
| 186AT | 4 1/2 | 3 3/4 | 7 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| L186AT | 4 1/2 | 3 3/4 | 7 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 186ATC | 4 1/2 | 3 3/4 | 7 | 2 3/4 | 2 1/4 | — | 1 1/8 |
| 187AT | 4 1/2 | 3 3/4 | 8 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 188AT | 4 1/2 | 3 3/4 | 9 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 189AT | 4 1/2 | 3 3/4 | 10 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 189ATC | 4 1/2 | 3 3/4 | 10 | 2 3/4 | 2 1/4 | — | 1 1/8 |
| 1810AT | 4 1/2 | 3 3/4 | 11 | 2 3/4 | 2 1/4 | 2 | 1 1/8 |
| 203 | 5 | 4 | 5 1/2 | 3 1/8 | 2 1/4 | 2 | 3/4 |
| 204 | 5 | 4 | 6 1/4 | 3 1/8 | 2 1/4 | 2 | 3/4 |
| 213 | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | 3 | 2 3/4 | 1 1/8 |
| 213AT | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 213JM | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | — | — | 7/8 |
| 213JP | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | — | — | 1 1/4 |
| 213T | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | 3 3/8 | 3 1/8 | 1 3/8 |
| 213TC | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | 3 3/8 | — | 1 3/8 |
| 213TR | 5 1/4 | 4 1/4 | 5 1/2 | 3 1/2 | 4 1/8 | 2 5/8 | 1 3/8 |
| 214AT | 5 1/4 | 4 1/4 | 6 1/4 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 215 | 5 1/4 | 4 1/4 | 7 | 3 1/2 | 3 | 2 3/4 | 1 1/8 |
| 215AT | 5 1/4 | 4 1/4 | 7 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 215JM | 5 1/4 | 4 1/4 | 7 | 3 1/2 | — | — | 7/8 |
| 215JP | 5 1/4 | 4 1/4 | 7 | 3 1/2 | — | — | 1 1/4 |
| 215T | 5 1/4 | 4 1/4 | 7 | 3 1/2 | 3 3/8 | 3 1/8 | 1 3/8 |
| 215TC | 5 1/4 | 4 1/4 | 7 | 3 1/2 | 3 3/8 | — | 1 3/8 |
| 215TR | 5 1/4 | 4 1/4 | 7 | 3 1/2 | 4 1/8 | 2 5/8 | 1 3/8 |
| 216AT | 5 1/4 | 4 1/4 | 8 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 217AT | 5 1/4 | 4 1/4 | 9 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 218AT | 5 1/4 | 4 1/4 | 10 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 219AT | 5 1/4 | 4 1/4 | 11 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 219ATC | 5 1/4 | 4 1/4 | 11 | 3 1/2 | 2 3/4 | — | 1 3/8 |
| 2110AT | 5 1/4 | 4 1/4 | 12 1/2 | 3 1/2 | 2 3/4 | 2 1/2 | 1 3/8 |
| 2110ATC | 5 1/4 | 4 1/4 | 12 1/2 | 3 1/2 | 2 3/4 | — | 1 3/8 |
| 224 | 5 1/2 | 4 1/2 | 6 3/4 | 3 1/2 | 3 | 2 3/4 | 1 |
| 225 | 5 1/2 | 4 1/2 | 7 1/2 | 3 1/2 | 3 | 2 3/4 | 1 |
| 253AT | 6 1/4 | 5 | 7 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 254 | 6 1/4 | 5 | 8 1/4 | 4 1/4 | 3 3/8 | 3 1/8 | 1 1/8 |
| 254AT | 6 1/4 | 5 | 8 1/4 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 254T | 6 1/4 | 5 | 8 1/4 | 4 1/4 | 4 | 3 3/4 | 1 5/8 |
| 254TC | 6 1/4 | 5 | 8 1/4 | 4 1/4 | 4 | — | 1 5/8 |
| 254TR | 6 1/4 | 5 | 8 1/4 | 4 1/4 | 4 1/2 | 2 7/8 | 1 5/8 |
| 254U | 6 1/4 | 5 | 8 1/4 | 4 1/4 | 3 3/4 | 3 1/2 | 1 5/8 |
| 255AT | 6 1/4 | 5 | 9 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 256AT | 6 1/4 | 5 | 10 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 256T | 6 1/4 | 5 | 10 | 4 1/4 | 4 | 3 3/4 | 1 5/8 |
| 256TC | 6 1/4 | 5 | 10 | 4 1/4 | 4 | — | 1 5/8 |
| 256TR | 6 1/4 | 5 | 10 | 4 1/4 | 4 1/2 | 2 7/8 | 1 5/8 |
| 256U | 6 1/4 | 5 | 10 | 4 1/4 | 3 3/4 | 3 1/2 | 1 3/8 |
| 257AT | 6 1/4 | 5 | 11 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 258AT | 6 1/4 | 5 | 12 1/2 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 259AT | 6 1/4 | 5 | 14 | 4 1/4 | 3 1/4 | 3 | 1 5/8 |
| 283AT | 7 | 5 1/2 | 8 | 4 3/4 | 3 1/4 | 3 1/2 | 1 7/8 |
| 284 | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 3 3/4 | 3 1/2 | 1 1/4 |
| 284AT | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 284T | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 4 5/8 | 4 3/8 | 1 7/8 |
| 284TC | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 4 5/8 | — | 1 7/8 |
| 284TR | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 4 3/4 | 3 1/8 | 1 7/8 |
| 284TC | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 3 1/4 | 3 | 1 5/8 |
| 284U | 7 | 5 1/2 | 9 1/2 | 4 3/4 | 4 7/8 | 4 5/8 | 1 5/8 |
| 285AT | 7 | 5 1/2 | 10 | 4 3/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 286AT | 7 | 5 1/2 | 11 | 4 3/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 286T | 7 | 5 1/2 | 11 | 4 3/4 | 4 5/8 | 4 3/8 | 1 7/8 |
| 286TC | 7 | 5 1/2 | 11 | 4 3/4 | 4 5/8 | — | 1 7/8 |
| 286TR | 7 | 5 1/2 | 11 | 4 3/4 | 4 3/4 | 3 1/8 | 1 7/8 |
| 286TS | 7 | 5 1/2 | 11 | 4 3/4 | 3 1/4 | 3 | 1 7/8 |
| 286U | 7 | 5 1/2 | 11 | 4 3/4 | 4 7/8 | 4 5/8 | 1 7/8 |
| 287AT | 7 | 5 1/2 | 12 1/2 | 4 3/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 288AT | 7 | 5 1/2 | 14 | 4 3/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 289AT | 7 | 5 1/2 | 16 | 4 3/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 323AT | 8 | 6 1/4 | 9 | 4 3/4 | 4 1/4 | 4 | 2 1/8 |
| 324 | 8 | 6 1/4 | 10 1/2 | 5 1/4 | 4 7/8 | 4 5/8 | 1 5/8 |
| 324AT | 8 | 6 1/4 | 10 1/2 | 5 1/4 | 4 1/4 | 4 | 2 1/8 |
| 324TR | 8 | 6 1/4 | 10 1/2 | 5 1/4 | 5 1/4 | 3 1/2 | 2 1/8 |
| 324TS | 8 | 6 1/4 | 10 1/2 | 5 1/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 324U | 8 | 6 1/4 | 10 1/2 | 5 1/4 | 5 5/8 | 5 3/8 | 1 7/8 |
| 325AT | 8 | 6 1/4 | 11 | 5 1/4 | 4 1/4 | 4 | 2 1/8 |
| 326 | 8 | 6 1/4 | 12 | 5 1/4 | 4 7/8 | 4 5/8 | 1 5/8 |
| 326AT | 8 | 6 1/4 | 12 | 5 1/4 | 4 1/4 | 4 | 2 1/8 |
| 326T | 8 | 6 1/4 | 12 | 5 1/4 | 5 1/4 | 5 | 2 1/8 |
| 326TR | 8 | 6 1/4 | 12 | 5 1/4 | 5 1/4 | 3 1/2 | 2 1/8 |
| 326TS | 8 | 6 1/4 | 12 | 5 1/4 | 3 3/4 | 3 1/2 | 1 7/8 |
| 326U | 8 | 6 1/4 | 12 | 5 1/4 | 5 5/8 | 5 3/8 | 1 7/8 |
| 327AT | 8 | 6 1/4 | 14 | 5 1/4 | 4 1/4 | 4 | 2 1/8 |
| 328AT | 8 | 6 1/4 | 16 | 5 1/4 | 4 1/4 | 4 | 2 1/8 |
| 329AT | 8 | 6 1/4 | 18 | 5 1/4 | 4 1/4 | 4 | 2 1/8 |
| 363AT | 9 | 7 | 10 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 364 | 9 | 7 | 11 1/4 | 5 7/8 | 5 5/8 | 5 3/8 | 1 7/8 |
| 364AT | 9 | 7 | 11 1/4 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 364S | 9 | 7 | 11 1/4 | 5 7/8 | 3 1/4 | 3 | 1 5/8 |
| 364T | 9 | 7 | 11 1/4 | 5 7/8 | 5 7/8 | 5 7/8 | 2 3/8 |
| 364TR | 9 | 7 | 11 1/4 | 5 7/8 | 5 3/4 | 3 3/4 | 2 3/8 |
| 364TS | 9 | 7 | 11 1/4 | 5 7/8 | 3 3/4 | 3 1/2 | 1 7/8 |
| 364U | 9 | 7 | 11 1/4 | 5 7/8 | 6 3/8 | 6 1/8 | 2 1/8 |
| 365 | 9 | 7 | 12 1/4 | 5 7/8 | 5 5/8 | 5 3/8 | 1 7/8 |
| 365AT | 9 | 7 | 12 1/4 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 365T | 9 | 7 | 12 1/4 | 5 7/8 | 5 7/8 | 4 7/8 | 2 3/8 |
| 324T | 8 | 6 1/4 | 10 1/2 | 5 1/4 | 5 1/4 | 5 | 2 1/8 |
| 365TR | 9 | 7 | 12 1/4 | 5 7/8 | 5 3/4 | 3 3/4 | 2 3/8 |
| 365TS | 9 | 7 | 12 1/4 | 5 7/8 | 3 3/4 | 3 1/2 | 1 7/8 |
| 365U | 9 | 7 | 12 1/4 | 5 7/8 | 6 3/8 | 6 1/8 | 2 1/8 |
| 366AT | 9 | 7 | 14 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 364AT | 9 | 7 | 11 1/4 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 367AT | 9 | 7 | 16 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 368AT | 9 | 7 | 18 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
| 369AT | 9 | 7 | 20 | 5 7/8 | 4 3/4 | 4 1/2 | 2 3/8 |
来源: engineeringtoolbox.com
原始源图
以下原始来源图像予以保留，以免丢失视觉参考资料。当图像包含图表或表格数据时，其提取值已呈现在页面的表格、计算器或交互式图表中；其余图像保留为视觉来源参考。
Interactive NEMA Frame Dimension Diagram
NEMA 电机 机座 Dimension Keys
工程要点
电机 机座 Dimension 转换器
- C-face suffix: Frames ending in C (e.g., 48C, 56C) indicate a C-face (close-coupled) mounting pattern. The 2F dimension is typically not specified because C-face motors mount by their face rather than a base.
- H suffix: Motors with the H designation have a wider 2F mounting pattern than their base frame, accommodating larger mounting bases.
- T suffix (140T, 143T): Indicates a "T-frame" designation introduced in 1964 to replace older frame sizes. T-frames are the current standard.
- J and P suffixes (56J, 143JM, 143JP): Denote jet pump motor shafts with threaded shaft ends for direct impeller attachment.
- HZ suffix (56HZ): Specifies a frame with both wider mounting holes and a modified shaft dimension.
- These dimensions are per the NEMA MG-1 1984 standard. Modern motors may follow updated revisions; always verify against the applicable specification revision.