Providing torque up to 1,500 oz-in (1,059 N-cm), these synchronous motors are available in UL Listed versions suitable for use in Class I, Division 1, Group D hazardous locations. Frame sizes are NEMA 42 and 66 (110 mm and 170 mm).
NEMA Frame/Shaft Sizes – Kurz, Electrical Motors – Frame Dimensions, Electrical Motors – Frame Dimensions, NEMA A, B, C and D Electrical Motor Design, 19 rows · The following are dimensional size charts for standard electric motor NEMA standard Type D Flange Footless Motors . Standardized motor dimensions are established by the National Electrical Manufacturers Association ( NEMA ) – are tabulated below and apply to all base-mounted motors listed herein that carry a NEMA frame designation, Similarly, the “D” dimension of a 213 frame motor is 51/ 4. ”, 21 divided by 4 = 51/ 4. By NEMA definition, two-digit frame numbers are fractional frames even though 1 HP or larger motors may be built in them. Three-digit frame num- bers are by definition integral frames.
Additional Notes: Notes From Front: – When a “C” flange has been added to a NEMA motor the “BA” dimensions are: Frame: “BA”: 143-5TC 2-3/4 182-4TC 3-1/2 213-5TC 4-1/4 254-6TC 4-3/4 – Dimensions: C, N, O, P, & AB are specific to each manufacturer. Please call for exact dimensions.
Dimensions of electrical motor frames according NEMA 1984 are indicated below: 1 in (inch) = 25.4 mm 1 inch = 25.4 mm Sorry to see that you are blocking ads on The Engineering ToolBox!, Motors having no suf?x letters (other than NEMA frames 42, 48 and 56) are built to prior NEMA standards. Pre?x letters are often used by manufacturers (as in G184T) to indicate the overall length of a motor but do not denote differences in the NEMA standardized mounting dimensions .
NOTE: All dimensions in inches W-Range NEMA Aluminum – TEFC Dimensions Frame Sizes 56 – 315 NEMA Brake Motors Frame Size ‘C’ dimension Additional Length 56 2.875” 143/5T 4.0” 182/4T 3.5” 213/5T 3.75” D FLANGE MOUNT C FACE MOUNT FRAME AJ AK BB BD BE BF AJ AK BB BD BF BV 56 – – – – – – 5.87 4.50 0.12 6.50 0.37 -, ESR Motor Systems www.esrmotors.com ESR Motor Systems, LLC • 648 E White St, Rock Hill, SC 29730 Phone: (800) 868-3770 • FAX: (803) 324-3259 Standard NEMA Frames vs. Horsepower, MOTOR MOUNTING EXPLANATION E D M M P N D S S P N D P N D E B3 – Foot Mounted Motor B5 – flange (’ D ’ flange ) The flange diameter is bigger than the motor frame diameter. The holes are not tapped. B5 flanges are available for all motor sizes . B14A – flange (’C’ face) The flange diameter is smaller than the motor frame diameter. The holes …
nema frames prior to 1953 framedefnuvba 66 4-1/8 2-15/16 2-1/2 2-1/4 3/42-1/4 3-1/8 203 542-3/4 2-7/16 3/423-1/8 204 3-1/4 224 5-1/2 4-1/2 3-3/8 3-1/4 133-1/2 225 3-3/4 2 5 46 -1/837 284 7 5-1/2 4-3/4 4-1/4 1-1/4 3-3/4 4-3/4 324 8 6-1/4 5-1/4 5-3/8 1-5/8 4-7/8 5-1/4 326 6 364 975-5/8 5-5/8 1-78/8 5-3/8 5-7/8 365 6-1/8 404 10 8 6-1/8 6-3/8 2-1/8 6-1/8 6-5/8, When selection a particular motor for an intended task all engineering parameters must be taken into account. The four NEMA ( National Electrical Manufacturers Association ) designs have unique speed-torque-slip relationships – making them suited for different type of applications. NEMA design A. maximum 5% slip; high to medium starting current
