Festo EMMB Series Hybrid Stepper Motor 48V, 1.05Nm Torque, 1.8 °, 57 mm Frame, 6.35 mm Shaft

RS Stock No.:: 852-191
Mfr. Part No.:: EMMB-ST-57-M-SMB
Manufacturer:: Festo

Festo EMMB Series Hybrid Stepper Motor 48V, 1.05Nm Torque, 1.8 °, 57 mm Frame, 6.35 mm Shaft

Image representative of range

Subtotal (1 unit)*

€519.94

(exc. VAT)

€639.53

(inc. VAT)

Stocked by manufacturer

Ready to ship from 20 November 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit
1 +	€519.94

*price indicative

RS Stock No.:: 852-191
Mfr. Part No.:: EMMB-ST-57-M-SMB
Manufacturer:: Festo

Specifications

Technical data sheets

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Festo
	Sub Type	Hybrid
	Product Type	Stepper Motor
	Step Angle	1.8°
	Holding Torque	1.05Nm
	Voltage	48V
	Frame Size	57 mm
	Mount Type	Panel Mount
	Shaft Diameter	6.35mm
	Current Rating	5.1A
	Shaft Length	21mm
	IP Rating	IP20
	Number of Pole Pairs	50
	Depth	57mm
	Resistance Per Phase	0.17Ω
	Width	57mm
	Standards/Approvals	CE, cULus, IEC 60034, RCM, RoHS, UL E342973
	Output Speed	1000rpm
	Series	EMMB

	Select all
	Brand Festo
	Sub Type Hybrid
	Product Type Stepper Motor
	Step Angle 1.8°
	Holding Torque 1.05Nm
	Voltage 48V
	Frame Size 57 mm
	Mount Type Panel Mount
	Shaft Diameter 6.35mm
	Current Rating 5.1A
	Shaft Length 21mm
	IP Rating IP20
	Number of Pole Pairs 50
	Depth 57mm
	Resistance Per Phase 0.17Ω
	Width 57mm
	Standards/Approvals CE, cULus, IEC 60034, RCM, RoHS, UL E342973
	Output Speed 1000rpm
	Series EMMB

COO (Country of Origin):: BG

Festo EMMB Series Stepper Motor, 48V Voltage, 5.1A Current - EMMB-ST-57-M-SMB, Numeric Part Number: 8156142

This stepper motor provides precise rotational control for positioning and motion systems. It is a hybrid design intended for panel-mounted installations and operates from a 48V supply. The unit delivers controlled step increments and sustained holding capability suitable for applications requiring repeatable angular movement in industrial settings.

Features and Benefits:

• 1.8° step angle for precise incremental positioning
• 1.05Nm holding torque for secure static loads
• 1000rpm output speed for moderate-speed applications
• 5.1A current rating enabling substantial drive power
• 0.17Ω resistance per phase reducing voltage drop

Applications

• Suitable for automated indexing systems in production lines
• Ideal for rotary tables requiring precise stopping
• Used with motion controllers in robotics assemblies
• Can be used for lab instrumentation requiring repeatability
• Suitable for panel-mounted actuator installations

What is the shaft diameter and how does it affect coupling?

The shaft is 6.35mm diameter, allowing direct coupling with standard 6.35mm clamping hubs for secure torque transmission.

What mechanical mounting and protection does it provide?

It uses a panel-mount configuration and has an IP20 rating, meaning it is intended for protected indoor environments without exposure to liquids.

What thermal or electrical limits are relevant to drivers?

Resistance per phase is 0.17 Ω and current rating is 5.1A, which determine Coil heating and the types of current-limiting drivers required.

How long is the exposed shaft and what does that permit?

The shaft length is 21mm, permitting sufficient engagement for a variety of couplers and pulleys without additional extension.