Stator (Electric) / Housing (Hydraulic): Length Range 100-800mm

Component Specifications

Definition

The stator/housing is the stationary outer structure of electric or hydraulic motors that serves as the primary containment and support element. In electric motors, it houses the stator windings and provides magnetic flux paths; in hydraulic motors, it contains the fluid chambers, ports, and internal mechanisms while withstanding hydraulic pressure. This component ensures structural integrity, thermal management, and precise alignment of internal parts.

Working Principle

In electric motors: Provides a stationary magnetic field through windings that interacts with the rotor's magnetic field to produce torque. In hydraulic motors: Contains pressurized fluid chambers that drive the rotor or pistons, converting hydraulic energy into mechanical rotation while maintaining seal integrity and pressure containment.

Materials

Electric: Laminated silicon steel sheets (0.35-0.65mm thickness) with copper/aluminum windings, cast iron or aluminum alloy housing. Hydraulic: High-strength aluminum alloys (e.g., 6061-T6), ductile iron (e.g., 65-45-12), or steel (e.g., 4140) with corrosion-resistant coatings. Both may include thermal management features and precision machined surfaces.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Length Range	100-800mm
Diameter Range	50-500mm
Surface Finish	Ra 1.6-3.2μm
Tolerance Class	IT7-IT9
Temperature Range	-40°C to 180°C
Pressure Rating (Hydraulic)	Up to 350 bar

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 1940, DIN 42950, IEC 60034

Parent Products

This component is used in the following industrial products

Electric or Hydraulic Motor

A motor that converts electrical or hydraulic energy into mechanical rotation to drive a water pump.

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Engineering Analysis

Risks & Mitigation

Thermal degradation of windings
Pressure-induced fatigue cracks
Corrosion in hydraulic applications
Misalignment causing vibration
Electromagnetic interference (electric)

FMEA Triads

Trigger: Thermal cycling and overload conditions
Failure: Insulation breakdown in stator windings
Mitigation: Implement temperature monitoring, proper cooling systems, and adhere to rated operating conditions

Trigger: Hydraulic fluid contamination
Failure: Erosion and corrosion of housing internal surfaces
Mitigation: Install filtration systems, use compatible fluids, and implement regular fluid analysis

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.05mm for critical bore diameters, ±0.1mm for mounting surfaces

Test Method

Pressure testing per ISO 4413, electrical testing per IEC 60034, dimensional inspection with CMM, NDT for crack detection

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

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Manufacturers of Stator (Electric) / Housing (Hydraulic)

Manufacturer profiles associated with Stator (Electric) / Housing (Hydraulic).

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the difference between electric motor stators and hydraulic motor housings?

Electric stators focus on electromagnetic properties and thermal management for windings, while hydraulic housings prioritize pressure containment, fluid dynamics, and corrosion resistance for hydraulic fluid systems.

Can stators/housings be repaired or must they be replaced?

Minor damage like surface corrosion or thread repair can often be addressed, but significant structural damage, cracks, or severe wear typically requires replacement due to critical tolerances and safety considerations.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Stator (Electric) / Housing (Hydraulic)