132S & 132M Frame Motors: kW, Shaft, Flange

DRG Motor offers eight motor types in frame 132: on 132S, 3 kW 6-pole, 5.5 kW 4-pole and 5.5 / 7.5 kW 2-pole (132S1, 132S2); on 132M, 4 and 5.5 kW 6-pole (132M1, 132M2), 7.5 kW 4-pole and a compact 11 kW 4-pole. All of them have a 132 mm shaft height, a 38×80 mm shaft and a 300 mm B5 flange. What separates 132S from 132M is not the shaft or the flange but the foot hole spacing B (140 / 178 mm) and the overall length (438 / 476 mm).

Grey DRG three-phase asynchronous electric motor – article on 132S and 132M frame motors

The model codes in the tables below link to each product page. You can compare every power and speed option in the online motor shop and in the three-phase asynchronous electric motors category.

Which DRG motors are built on frame 132?

Frame 132 covers 3 kW to 11 kW with a single shaft size and a single flange size, which is why it comes up so often for conveyors, fans, pumps, mixers and gearbox inputs. Apart from the compact model, all seven types exist with an aluminium (-AL) and a cast iron (-GG) housing; their electrical data and B3 dimensions are the same for both materials in the data sheet. The compact DRG-132M-4K is available in aluminium only.

Model (aluminium / cast iron)	Frame, poles	Power	Speed class / nameplate
DRG-132S-6-AL / DRG-132S-6-GG	132S, 6 poles	3 kW (4 HP)	1000 / 968 rpm
DRG-132S1-2-AL / DRG-132S1-2-GG	132S, 2 poles	5.5 kW (7.5 HP)	3000 / 2930 rpm
DRG-132S-4-AL / DRG-132S-4-GG	132S, 4 poles	5.5 kW (7.5 HP)	1500 / 1460 rpm
DRG-132S2-2-AL / DRG-132S2-2-GG	132S, 2 poles	7.5 kW (10 HP)	3000 / 2930 rpm
DRG-132M1-6-AL / DRG-132M1-6-GG	132M, 6 poles	4 kW (5.5 HP)	1000 / 968 rpm
DRG-132M2-6-AL / DRG-132M2-6-GG	132M, 6 poles	5.5 kW (7.5 HP)	1000 / 968 rpm
DRG-132M-4-AL / DRG-132M-4-GG	132M, 4 poles	7.5 kW (10 HP)	1500 / 1460 rpm
DRG-132M-4K-AL	132M, 4 poles (compact)	11 kW (15 HP)	1500 / 1465 rpm

The speed class (1000 / 1500 / 3000) is the synchronous speed; the rated speed on the nameplate is slightly lower. Use the nameplate speed for calculations and gear ratios.

132S1, 132S2, 132M1, 132M2: what do the suffixes mean?

The suffix number marks a power step, not a dimension. In the DRG catalogue, 132S1 and 132S2 are used only for 2-pole (3000 rpm) motors: 132S1 = 5.5 kW, 132S2 = 7.5 kW. 132M1 and 132M2 appear only on 6-pole (1000 rpm) motors: 132M1 = 4 kW, 132M2 = 5.5 kW. The 4-pole motors carry no suffix: 132S-4 is 5.5 kW and 132M-4 is 7.5 kW.

In the data sheet, 132S1 and 132S2 share the same B3 dimensions (A, B, C, H, L), and so do 132M1 and 132M2. If your old nameplate says "132S1" and you need more power, a 132S2 sits on the same foot holes with the same shaft. The current is higher, though: check the cable, fuses and overload setting against the new nameplate current.

Current and torque: 2-pole versus 4-pole at the same kW

Model	Voltage	Current (400 V)	Torque
DRG-132S-6 (3 kW, 6p)	230/400 V (Δ/Y)	6.84 A	29.6 Nm
DRG-132S1-2 (5.5 kW, 2p)	400/690 V (Δ/Y)	10.1 A	17.9 Nm
DRG-132S-4 (5.5 kW, 4p)	400/690 V (Δ/Y)	10.7 A	36 Nm
DRG-132S2-2 (7.5 kW, 2p)	400/690 V (Δ/Y)	13.7 A	24.4 Nm
DRG-132M1-6 (4 kW, 6p)	400/690 V (Δ/Y)	8.99 A	39.5 Nm
DRG-132M2-6 (5.5 kW, 6p)	400/690 V (Δ/Y)	12 A	54.3 Nm
DRG-132M-4 (7.5 kW, 4p)	400/690 V (Δ/Y)	14.3 A	49.1 Nm
DRG-132M-4K (11 kW, 4p)	400/690 V (Δ/Y)	20.4 A	71.7 Nm

Torque comes from M = 9550 × P / n (M in Nm, P in kW, n in rpm). Example: 132S2-2 gives 9550 × 7.5 / 2930 ≈ 24.4 Nm; 132M-4 gives 9550 × 7.5 / 1460 ≈ 49.1 Nm. Both are 7.5 kW with the same 38 mm shaft, yet the 4-pole motor delivers roughly twice the torque. A coupling that fits does not make the motor right for the job; check the speed and torque the driven machine needs. Use the motor cable size calculator for wiring and the motor current chart for other ratings.

Voltage: the 3 kW 132S-6 is wound 230/400 V (Δ/Y); every other frame 132 model is 400/690 V (Δ/Y). On a 400 V supply a 400/690 V motor runs in delta, which also suits star-delta starting.

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Dimensional difference between 132S and 132M

Both frames share the same cross-section; the difference is the housing length. The table shows B3 (foot-mounted) dimensions, with differing values marked ◄.

Dimension (mm)	132S	132M	Meaning
A	216	216	Foot hole spacing across the shaft axis
B	140	178 ◄	Foot hole spacing along the shaft axis
C	89	89	Shaft shoulder to first foot hole
H	132	132	Shaft centre height
K	4–Φ12	4–Φ12	Foot holes
AC	258.4	258.4	Housing diameter
AD	203	203	Shaft axis to top of terminal box
L	438	476 ◄	Overall length (B3)

In practice: replacing a 132S with a 132M moves the foot hole spacing along the shaft from 140 mm to 178 mm (38 mm more) and makes the motor 38 mm longer. A = 216 mm, C = 89 mm and the shaft height stay the same, so coupling alignment is unchanged, but the rear feet need new holes or a slide rail. With a B5 flange the length difference remains (flanged LB: 132S 390 mm, 132M 428 mm), so check there is room behind the fan cover.

38×80 shaft and B5 flange dimensions

In the DRG catalogue, the 132S row covers 2, 4, 6 and 8 poles and the 132M row covers 4, 6 and 8 poles, with identical shaft and B5 flange values. Unlike larger frames such as 225M or 315, where 2-pole and 4-pole motors carry different shafts, frame 132 has no such split.

Dimension	Value (132S and 132M)	Description
D × E	38 × 80 mm	Shaft diameter × length
F	10 mm	Key width
G	33 mm	Dimension at key seat bottom
DH	M12×28	Shaft end thread
P	300 mm	Flange outer diameter
M	265 mm	Flange bolt circle
N	230 mm	Spigot (pilot) diameter
S	14.5 mm	Flange hole diameter
T	4 mm	Spigot depth
LA	14 mm	Flange thickness

Other data: bearing 6208-ZZ-C3, cable entry 2 × M32×1.5. On a B5 flange, check four values separately: outer diameter P, bolt circle M, spigot N and hole diameter S. Looking only at the outer diameter is enough to order the wrong motor. All frames are compared in the B5 motor flange dimensions table, and shaft sizes by power are listed in the motor shaft diameter by kW table.

Flange selection by power is covered in separate articles: 3 kW flange motor, 4 kW flange motor, 5.5 kW flange motor, 7.5 kW flange motor and 11 kW flange motor.

The DRG catalogue has no B14 (small flange) dimension table, so no B14 values are given here, and do not assume a B14 or B34 version exists for every frame. If you need B14/B34, send us the outer diameter, bolt circle, spigot diameter and hole thread of your flange on WhatsApp and we will confirm. For background, see B34 foot and small flange motors.

Compact DRG-132M-4K: why 11 kW in a 132M?

In the standard range, the 11 kW 4-pole motor sits in frame 160M. DRG-132M-4K-AL delivers the same power one frame lower, in 132M; the "K" in the code marks it. Treat it as a separate product: ordered in place of a 160M, it changes the shaft, foot and flange dimensions.

Item	DRG-132M-4K (compact)	DRG-160M-4 (standard)
Frame	132M	160M
Shaft D × E	38×80 mm	42×110 mm
Shaft height H	132 mm	160 mm
Nameplate speed	1465 rpm	1465 rpm
Current (400 V)	20.4 A	20.4 A
Torque	71.7 Nm	71.7 Nm
Housing material	Aluminium only	Aluminium + cast iron

The compact model's outer dimensions are the same as the 132M-4 in the data sheet, and its shaft is 38×80 mm. It is therefore considered when an existing 132M needs more power, or when there is no room for a frame 160. If the machine currently has a 160M-4, a 38×80 mm shaft will not fit a 42×110 mm coupling bore or the 160 flange; the coupling, flange and foot connection must be reworked. With a nameplate current of 20.4 A, cable and protection are sized for 11 kW.

Same kW, different frame: differences that lead to the wrong order

The power range of frame 132 overlaps with the neighbouring frames. When an order is based on kW alone, the most common mistake is a different shaft diameter.

Power	Model (poles)	Frame	Shaft D × E
3 kW	DRG-100L-2 (2p)	100L	28×60 mm
3 kW	DRG-100L2-4 (4p)	100L	28×60 mm
3 kW	DRG-132S-6 (6p)	132S	38×80 mm
4 kW	DRG-112M-2 (2p)	112M	28×60 mm
4 kW	DRG-112M-4 (4p)	112M	28×60 mm
4 kW	DRG-132M1-6 (6p)	132M	38×80 mm
5.5 kW	DRG-112M-4K (4p)	112M compact	28×60 mm
5.5 kW	DRG-132S1-2 (2p)	132S	38×80 mm
5.5 kW	DRG-132S-4 (4p)	132S	38×80 mm
5.5 kW	DRG-132M2-6 (6p)	132M	38×80 mm
7.5 kW	DRG-132S2-2 (2p)	132S	38×80 mm
7.5 kW	DRG-132M-4 (4p)	132M	38×80 mm
7.5 kW	DRG-160M-6 (6p)	160M	42×110 mm
11 kW	DRG-132M-4K (4p)	132M compact	38×80 mm
11 kW	DRG-160M1-2 (2p)	160M	42×110 mm
11 kW	DRG-160M-4 (4p)	160M	42×110 mm
11 kW	DRG-160L-6 (6p)	160L	42×110 mm

What the table shows: at 3 kW, 2-pole and 4-pole motors come in frame 100L with a 28×60 mm shaft, while the 6-pole is a 132S with 38×80 mm. At 4 kW the same split appears between 112M and 132M1. At 5.5 kW 1500 rpm there are two options: the compact 112M-4K (28×60 mm) or the standard 132S-4 (38×80 mm). A 7.5 kW 6-pole motor does not fit in 132 and moves up to 160M (42×110 mm). The frame code and speed on the old nameplate matter as much as the kW. For the ordering steps see the motor frame size order guide.

Dimensions to check before ordering

Frame code on the old nameplate (132S, 132S1, 132M2, 160M…), kW, poles and rated speed.
Mounting: B3 foot, B5 flange or B35 foot + flange. See motor mounting types and the B3, B5, B35 mounting order guide.
Foot hole spacing A × B: 216 × 140 mm on 132S, 216 × 178 mm on 132M.
On a flange motor: P, M, N and S, plus the number of flange holes.
Shaft diameter and length, key width and shaft end thread.
Housing material: aluminium or cast iron, depending on environment and vibration (see aluminium vs cast iron housing).
For a gearbox: its input flange, input bore (shaft diameter), key and permitted load; the gearbox size code alone is not enough. Details: flange motor for gearbox selection.

Drawings can be downloaded from the 2D technical drawings and 3D models pages. DRG Motor is an electric motor manufacturer, supplier and seller; if you are unsure about a dimension, send the old nameplate photo with the shaft and flange dimensions and we will compare them.

Send a photo of your current motor nameplate and we will find the suitable DRG model together.Send on WhatsApp

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Frequently asked questions

Can a 132M motor replace a 132S motor?

The shaft (38×80 mm), shaft height (132 mm) and B5 flange are the same, so on a flange mounting the connection dimensions match; the motor is just 38 mm longer. On a foot mounting the rear holes differ by 38 mm, so the base needs new holes.

What is the difference between 132S1 and 132S2?

Both are 2-pole, 3000 rpm class motors; 132S1 is 5.5 kW and 132S2 is 7.5 kW. Foot, shaft and length dimensions are the same in the data sheet; they differ in power, current (10.1 A / 13.7 A) and torque.

What is the shaft diameter of a frame 132 motor?

On every DRG 132S and 132M model, including the compact 11 kW, the shaft is 38 mm in diameter and 80 mm long, with a 10 mm key and an M12×28 end thread.

Can I get an 11 kW motor in frame 132?

Yes, only as a compact 4-pole (1500 rpm) unit: DRG-132M-4K, aluminium housing, 1465 rpm. The 2-pole and 6-pole 11 kW motors are in frame 160.

Electric Motors Related to This Topic — Models and Current Prices

Suitability is not decided by power alone: compare the speed, voltage, mounting, shaft and fixing dimensions of your machine with the product data; if unsure, send us the nameplate of your current motor.