Industry-Verified Manufacturing Data (2026)

Bearing Housings

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Bearing Housings used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Bearing Housings is characterized by the integration of Housing Body and Sealing System. In industrial production environments, manufacturers listed on CNFX commonly emphasize Cast Iron construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Structural components that support and align bearings within crushing machinery.

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Product Specifications

Technical details and manufacturing context for Bearing Housings

Definition
Bearing housings are critical components of Main Crushing Rollers that provide rigid support, precise alignment, and environmental protection for the roller bearings. They ensure proper load distribution and maintain bearing position under extreme crushing forces.
Working Principle
Bearing housings function by creating a stable mounting platform that secures bearings in precise alignment relative to the crushing roller shaft. They transfer operational loads from the bearings to the roller frame while protecting bearings from contaminants and maintaining lubrication.
Common Materials
Cast Iron, Cast Steel, Ductile Iron
Technical Parameters
  • Bore diameter for bearing fit, housing outer dimensions, and mounting bolt pattern specifications (mm) Standard Spec
Components / BOM
  • Housing Body
    Main structural element providing bearing support and alignment
    Material: Cast Iron/Steel
  • Sealing System
    Prevents contamination ingress and retains lubrication
    Material: Rubber/Synthetic Polymer
  • Mounting Flange
    Provides attachment points to the roller frame
    Material: Steel
  • Lubrication Port
    Allows for bearing lubrication without disassembly
    Material: Steel/Brass
Engineering Reasoning
0-150°C temperature, 0-100 MPa compressive stress, 0-50 μm radial clearance
200°C thermal limit, 150 MPa yield strength, 100 μm radial clearance threshold
Design Rationale: Thermal expansion mismatch between housing (steel, α=11.5×10⁻⁶/°C) and bearing (ceramic, α=3.2×10⁻⁶/°C) causing interference fit loss at ΔT>50°C
Risk Mitigation (FMEA)
Trigger Misalignment exceeding 0.05 mm/m during installation
Mode: Edge loading causing Hertzian contact stress concentration >1.5 GPa
Strategy: Laser alignment system with 0.01 mm/m tolerance and tapered adapter sleeves
Trigger Corrosive slurry ingress with pH<4.5
Mode: Pitting corrosion at >0.5 mm/year rate leading to fatigue crack initiation
Strategy: Duplex stainless steel (UNS S31803) housing with 3 mm corrosion allowance and labyrinth seals

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Bearing Housings.

heavy duty bearing housings for crushers cast iron bearing housing for crushing equipment bearing housing with mounting flange for machinery ductile iron bearing housing for industrial crushers sealed bearing housing for crushing machinery

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Main Crushing Rollers
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Precision Slitting Head
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Mixing Rotor
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Eccentric Shaft Assembly
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Max 10 MPa (100 bar) static load, 5 MPa dynamic
other spec: Max shaft speed: 3000 RPM, Vibration tolerance: ≤ 4.5 mm/s RMS, IP65/IP67 protection standard
temperature: -20°C to +120°C (standard), up to +200°C with special seals/lubrication
Media Compatibility
✓ Mineral ore slurry (≤40% solids) ✓ Industrial water/coolant systems ✓ Dry bulk material handling (dust < 100 mg/m³)
Unsuitable: High-concentration abrasive slurries with >60% solids or particle size >5mm
Sizing Data Required
  • Bearing bore diameter (mm/inches)
  • Radial/axial load capacity (kN)
  • Shaft misalignment tolerance (angular/parallel in degrees/mm)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fatigue spalling
Cause: Cyclic loading exceeding material endurance limit, often due to misalignment, improper preload, or contamination-induced stress concentrations
Corrosion pitting
Cause: Moisture ingress or chemical exposure leading to localized surface degradation, accelerated by inadequate sealing or improper lubricant selection
Maintenance Indicators
  • High-frequency vibration (>4x baseline) with harmonic patterns indicating bearing race defects
  • Abnormal temperature rise (>15°C above ambient) detected via infrared thermography at housing exterior
Engineering Tips
  • Implement precision laser alignment during installation with ≤0.002 in/in tolerance and periodic verification using vibration phase analysis
  • Establish condition-based lubrication program using oil analysis to maintain ISO cleanliness code ≤16/14/11 and monitor moisture content <500 ppm

Compliance & Manufacturing Standards

Reference Standards
ISO 113:1999 (Bearing housings - Boundary dimensions) ANSI/ABMA 15:1991 (Bearing housings - Inch series) DIN 736:2008 (Bearing housings - Tolerances and fits)
Manufacturing Precision
  • Bore diameter: H7 tolerance (e.g., 50mm bore: +0.025mm / 0mm)
  • Mounting surface flatness: 0.05mm per 100mm
Quality Inspection
  • Dimensional verification (CMM or bore gauge for diameter, roundness, and parallelism)
  • Hardness testing (Rockwell or Brinell to verify material specifications)

Factories Producing Bearing Housings

Verified manufacturers with capability to produce this product in China

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✓ 97% Supplier Capability Match Found

P Procurement Specialist from Canada Jan 23, 2026
★★★★★
"Great transparency on the Bearing Housings components. Essential for our Machinery and Equipment Manufacturing supply chain."
Technical Specifications Verified
T Technical Director from United States Jan 20, 2026
★★★★★
"The Bearing Housings we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."
Technical Specifications Verified
P Project Engineer from United Arab Emirates Jan 17, 2026
★★★★★
"Found 57+ suppliers for Bearing Housings on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

15 sourcing managers are analyzing this specification now. Last inquiry for Bearing Housings from Turkey (1h ago).

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Frequently Asked Questions

What materials are best for bearing housings in crushing machinery?

Cast iron, cast steel, and ductile iron are ideal for bearing housings in crushing machinery due to their durability, vibration dampening properties, and resistance to heavy loads and impacts.

How does the sealing system in a bearing housing protect crushing equipment?

The sealing system prevents contaminants like dust, debris, and moisture from entering the bearing, reducing wear and extending the lifespan of both the bearing and the crushing machinery.

Why is proper lubrication important for bearing housings in crushers?

Proper lubrication through dedicated ports reduces friction, dissipates heat, and prevents premature bearing failure, ensuring smooth operation and minimizing downtime in crushing applications.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Machinery and Equipment Manufacturing sector.

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