Industry-Verified Manufacturing Data (2026)

Bearing Block/Cartridge

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Bearing Block/Cartridge 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 Block/Cartridge is characterized by the integration of Housing Body 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 housing component that supports and aligns bearings within a guide rail system

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Product Specifications

Technical details and manufacturing context for Bearing Block/Cartridge

Definition
A bearing block or cartridge is a precision housing component within a guide rail interface system that contains and supports linear or rotary bearings. It provides structural mounting, proper alignment, and protection for bearings while facilitating smooth motion along guide rails in industrial machinery and equipment.
Working Principle
The bearing block/cartridge houses bearings that reduce friction between moving parts in a guide rail system. It maintains precise bearing alignment, distributes loads evenly, and protects bearings from contaminants while allowing smooth linear or rotational motion along the guide rail path.
Common Materials
Cast Iron, Aluminum Alloy, Steel
Technical Parameters
  • Mounting hole spacing, overall dimensions, and bearing bore diameter (mm) Per Request
Components / BOM
  • Housing Body
    Main structural frame providing mounting points and bearing support
    Material: Cast Iron or Aluminum
  • Bearing Bore
    Precision-machined inner surface for bearing installation and alignment
    Material: Same as housing body
  • Mounting Holes
    Threaded or through holes for securing to guide rail or machine frame
    Material: Same as housing body
  • Seals/Gaskets
    Protect bearings from contaminants and retain lubrication
    Material: Rubber or Synthetic Polymer
Engineering Reasoning
0-150°C temperature, 0-1000 N radial load, 0-500 N axial load, 0-5 m/s linear velocity
Exceeding 200°C thermal limit, 1200 N radial load, 600 N axial load, or 7 m/s linear velocity causes permanent deformation
Design Rationale: Thermal expansion mismatch between housing (aluminum alloy, α=23.6×10⁻⁶/K) and bearing steel (α=11×10⁻⁶/K) exceeding 0.1 mm clearance causes binding; Hertzian contact stress exceeding 1.2 GPa causes plastic deformation
Risk Mitigation (FMEA)
Trigger Contaminant ingress (ISO 4406 Class 21/19/16 exceeded)
Mode: Abrasive wear increasing clearance to 0.15 mm beyond specification
Strategy: IP67-rated labyrinth seals with 0.05 mm radial clearance and positive pressure purge system
Trigger Misalignment exceeding 0.05 mm/mm over 100 mm length
Mode: Edge loading causing localized stress concentration factor of 3.2
Strategy: Self-aligning spherical bearing inserts with ±2° angular compensation and laser-aligned mounting surfaces

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Bearing Block/Cartridge.

Linear Bearing Block Bearing Housing Bearing Unit cast iron bearing block for linear guide aluminum alloy cartridge bearing housing precision bearing cartridge for machinery linear rail bearing block with seals heavy-duty bearing housing for equipment

Applied To / Applications

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

Guide Rail Interface
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 (50 bar) dynamic load
other spec: Max velocity: 5 m/s, Max acceleration: 50 m/s², IP65/IP67 sealing standard
temperature: -40°C to +120°C (standard), up to +200°C with special seals/lubrication
Media Compatibility
✓ Industrial lubricants (grease/oil) ✓ Clean air/dry gas environments ✓ Water-based coolants with corrosion-resistant materials
Unsuitable: Abrasive slurry or particulate-laden fluids without protective seals
Sizing Data Required
  • Bore diameter/shaft size (mm)
  • Radial/axial load capacity requirements (N)
  • Guide rail profile and mounting configuration

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Bearing fatigue spalling
Cause: Cyclic loading exceeding material endurance limit, often due to improper installation (misalignment, excessive preload) or contamination-induced stress concentrations
Lubrication degradation failure
Cause: Oil breakdown or grease channeling from thermal overload, moisture ingress, or particulate contamination leading to inadequate film thickness and metal-to-metal contact
Maintenance Indicators
  • High-frequency vibration (>4x baseline) with harmonic patterns indicating bearing defect frequencies
  • Audible metallic grinding or rhythmic clicking during rotation under load
Engineering Tips
  • Implement precision laser alignment during installation and verify using dial indicators to ensure angular/parallel misalignment <0.002 inches per inch of coupling span
  • Establish condition-based lubrication with ultrasonic-assisted greasing, monitoring decibel rise rates to replenish before starvation while preventing over-greasing-induced seal damage

Compliance & Manufacturing Standards

Reference Standards
ISO 1132-1:2000 (Rolling bearings - Tolerances - Part 1: Terms and definitions) ANSI/ABMA 7:1995 (Tapered Roller Bearings - Radial Internal Clearance) DIN 5418-1:2016 (Rolling bearings - Bearing housings - Part 1: Tolerances)
Manufacturing Precision
  • Bore diameter: ±0.01 mm
  • Mounting surface flatness: 0.05 mm per 100 mm
Quality Inspection
  • Dimensional verification with coordinate measuring machine (CMM)
  • Ultrasonic testing for internal defects

Factories Producing Bearing Block/Cartridge

Verified manufacturers with capability to produce this product in China

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✓ 94% Supplier Capability Match Found

T Technical Director from United Arab Emirates Feb 03, 2026
★★★★★
"Testing the Bearing Block/Cartridge now; the technical reliability results are within 1% of the laboratory datasheet."
Technical Specifications Verified
P Project Engineer from Australia Jan 31, 2026
★★★★☆
"Impressive build quality. Especially the technical reliability is very stable during long-term operation. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from Singapore Jan 28, 2026
★★★★★
"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Bearing Block/Cartridge meets all ISO standards."
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.”

19 sourcing managers are analyzing this specification now. Last inquiry for Bearing Block/Cartridge from Vietnam (43m ago).

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Frequently Asked Questions

What materials are available for bearing blocks/cartridges?

Our bearing blocks/cartridges are manufactured in cast iron for durability, aluminum alloy for lightweight applications, and steel for high-strength requirements in machinery and equipment.

How does a bearing block align bearings in guide rail systems?

The bearing block housing precisely supports and aligns bearings within guide rail systems through its machined bore and mounting holes, ensuring smooth linear motion and reducing wear in industrial equipment.

What components are included in a typical bearing block BOM?

A standard bearing block bill of materials includes the bearing bore for shaft fitment, housing body for structural support, mounting holes for secure installation, and seals/gaskets to protect against contamination.

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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