Industry-Verified Manufacturing Data (2026)

Pivot Bearing Housing

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Pivot Bearing Housing 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 Pivot Bearing Housing is characterized by the integration of Mounting Flange and Bearing Bore. In industrial production environments, manufacturers listed on CNFX commonly emphasize Cast Iron construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A structural component that houses and supports the pivot bearing within a guiding roller assembly.

Product Specifications

Technical details and manufacturing context for Pivot Bearing Housing

Definition
The pivot bearing housing is a critical component of the guiding roller assembly that provides a secure mounting structure for the pivot bearing. It ensures proper alignment, protects the bearing from contaminants, and transfers loads from the roller to the machine frame while allowing rotational movement.
Working Principle
The housing encases the pivot bearing, maintaining its position and alignment relative to the roller shaft. It absorbs radial and axial forces generated during roller operation, distributing these loads to the assembly's mounting structure while protecting the bearing from external elements.
Common Materials
Cast Iron, Steel, Aluminum Alloy
Technical Parameters
  • Bore diameter for bearing fit (mm) Standard Spec
Components / BOM
  • Mounting Flange
    Provides attachment points to the assembly frame
    Material: steel
  • Bearing Bore
    Precision-machined surface for bearing fit
    Material: hardened steel
  • Sealing Groove
    Accommodates seals to prevent contamination
    Material: same as housing
Engineering Reasoning
Radial load: 5-25 kN, Axial load: 2-10 kN, Temperature: -40°C to 120°C, Rotational speed: 0-3000 rpm
Radial load > 30 kN causes housing deformation > 0.2 mm, Temperature > 150°C degrades lubricant viscosity below 68 cSt, Axial load > 12 kN exceeds bearing raceway yield strength of 690 MPa
Design Rationale: Hertzian contact stress exceeding 2.1 GPa causes subsurface fatigue spalling, Differential thermal expansion (α_steel=11.5×10⁻⁶/°C, α_aluminum=23.1×10⁻⁶/°C) creates >0.05 mm interference fit loss, Lubricant film thickness < 1 μm leads to boundary lubrication wear
Risk Mitigation (FMEA)
Trigger Misalignment > 0.1° between housing bore and shaft axis
Mode: Edge loading on bearing races causing premature Brinell marks
Strategy: Integrate alignment dowels with 0.01 mm positional tolerance and laser alignment verification
Trigger Corrosive environment with chloride concentration > 500 ppm
Mode: Pitting corrosion at housing-bearing interface increasing clearance to >0.08 mm
Strategy: Apply 50 μm thick zinc-nickel electroplating with 0.5 μm chromate seal

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Pivot Bearing Housing.

Applied To / Applications

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

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Max 10 MPa (static), Max 5 MPa (dynamic)
other spec: Slurry concentration: ≤30% solids by weight, Max flow rate: 2 m/s fluid velocity
temperature: -40°C to +120°C
Media Compatibility
✓ Lubricating oils (ISO VG 32-68) ✓ Water-based hydraulic fluids ✓ Industrial greases (NLGI Grade 2)
Unsuitable: Highly acidic environments (pH < 4) or chlorine-rich media
Sizing Data Required
  • Bore diameter of pivot bearing (mm)
  • Radial load capacity required (kN)
  • Shaft misalignment tolerance (degrees)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Bearing fatigue spalling
Cause: Cyclic loading beyond design limits leading to subsurface cracks and material flaking
Housing bore fretting corrosion
Cause: Micro-motion between bearing outer ring and housing due to improper fit or thermal expansion mismatch
Maintenance Indicators
  • High-frequency vibration spikes during rotation indicating bearing surface degradation
  • Visible oil seepage or discoloration around housing seals suggesting lubrication failure
Engineering Tips
  • Implement precision laser alignment during installation to minimize radial loads on bearing surfaces
  • Establish condition-based lubrication intervals using oil analysis data rather than fixed time schedules

Compliance & Manufacturing Standards

Reference Standards
ISO 1132-1:2002 (Rolling bearings - Tolerances - Part 1: Terms and definitions) ANSI/ABMA 7:1995 (Tapered Roller Bearings - Radial Bearings) DIN 5418-1:2016 (Housings for rolling bearings - Part 1: Tolerances)
Manufacturing Precision
  • Bore diameter: ±0.025 mm
  • Housing flatness: 0.05 mm per 100 mm
Quality Inspection
  • Dimensional verification with CMM (Coordinate Measuring Machine)
  • Magnetic Particle Inspection for surface cracks

Factories Producing Pivot Bearing Housing

Verified manufacturers with capability to produce this product in China

✓ 96% Supplier Capability Match Found

T Technical Director from Australia Jan 02, 2026
★★★★★
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
Technical Specifications Verified
P Project Engineer from Singapore Dec 30, 2025
★★★★☆
"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Pivot Bearing Housing meets all ISO standards. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Germany Dec 27, 2025
★★★★★
"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Pivot Bearing Housing arrived with full certification."
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.”

6 sourcing managers are analyzing this specification now. Last inquiry for Pivot Bearing Housing from Mexico (1h ago).

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Frequently Asked Questions

What materials are available for the pivot bearing housing?

Our pivot bearing housing is manufactured in three material options: durable cast iron for heavy-duty applications, high-strength steel for demanding environments, and lightweight aluminum alloy for weight-sensitive machinery.

How does the sealing groove in the housing protect the bearing?

The precision-machined sealing groove accommodates standard seals that prevent contamination from dust, debris, and moisture while retaining lubrication, extending bearing life and reducing maintenance requirements.

What mounting options does the housing flange provide?

The integrated mounting flange features standardized bolt patterns for secure installation on various machinery frames, ensuring proper alignment and stability for the guiding roller assembly.

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.

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