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Deep Groove Ball Bearings
  • Stable Performance Spherical Plain Bearing SIKAC 8M Bearing
  • Stable Performance Spherical Plain Bearing SIKAC 8M Bearing
  • Stable Performance Spherical Plain Bearing SIKAC 8M Bearing
  • Stable Performance Spherical Plain Bearing SIKAC 8M Bearing
  • Stable Performance Spherical Plain Bearing SIKAC 8M Bearing
  • Stable Performance Spherical Plain Bearing SIKAC 8M Bearing
Stable Performance Spherical Plain Bearing SIKAC 8M Bearing
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Stable Performance Spherical Plain Bearing SIKAC 8M Bearing

  • 10 - 99 Pieces
    $1.49
  • >= 100 Pieces
    $1.19

Customization:

Customized logo（Min.Order: 100 pieces）
Graphic customization（Min.Order: 100 pieces）
Customized packaging（Min.Order: 100 pieces）
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Stable Performance Spherical Plain Bearing SIKAC 8M Bearing

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Multi-Axis Motion Enablement: Designed to facilitate both rotational and linear motion through its spherical outer race and cylindrical inner race, accommodating radial and axial loads in variable directions.
  • High Load Capacity: Built with bearing steel and a steel cage, ensuring durability and reliability under heavy-duty applications with oil-based lubrication.

Key features

  • 1. Material Technology

    • With high-grade bearing steel construction, ensure exceptional durability and resistance to wear under heavy loads. ~30% stronger than standard carbon steel bearings*

  • 2. Performance Parameters

    • With a spherical design combined with deep groove structure, handle both radial and axial loads efficiently, outperforming conventional deep groove bearings in multi-directional applications*.

  • 3. Scenario Solutions

    • With an open sealing design, easily integrate into systems requiring external lubrication, ideal for heavy machinery and automotive applications where consistent load handling is critical.

  • 4. Interactive Design

    • With a hexagonal mounting head, enable quick and secure installation/removal using standard tools, simplifying maintenance compared to non-hexagonal bearings*.

  • 5. Certification Standards

    • With precision ratings down to ISO P2, meet stringent industrial standards for high-precision applications, ensuring compatibility with precision machinery specifications.

Product details

Stable Performance Spherical Plain Bearing SIKAC 8M Bearing

The Stable Performance Spherical Plain Bearing SIKAC 8M combines robust design with precision engineering, offering versatility for applications requiring rotational and linear motion. Crafted from high-grade bearing steel, it features a spherical outer race for multi-directional load handling and a hexagonal head for easy installation.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialBearing steelHigh-strength, wear-resistant machinery components
Bearing ID/OD8.0mm (ID) / 25mm (OD)Precision fit in compact mechanical systems
Cage TypeSteel (metal)Enhanced durability in high-temperature environments
LubricationOil-basedContinuous operation in lubricated machinery
Precision RatingP0, P2, P4, P5, P6 (ISO standards)Customizable tolerance for precision machinery
Sealing TypeOpenClean environments (e.g., cleanrooms, dry industrial settings)
StructureDeep groove + sphericalMulti-directional load handling in swivel joints
Thickness25mmStandard size for moderate-load applications
TypeBall bearingHigh-speed rotation in automotive/aerospace systems

Customization guide

Adjust material coatings (e.g., zinc plating, PTFE) or precision ratings (P2/P4/P6) to meet corrosion resistance or tolerance requirements. For extreme environments, pair with stainless steel variants for enhanced durability.

Get inspired

With its spherical design, you can handle both radial and axial loads in robotics joints. High-precision ratings (P2/P4) ensure smooth operation in CNC machinery. Oil-lubricated bearings enable uninterrupted performance in conveyor systems.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Load Capacity500N+15% (575N)+30% (650N)*
Rotational Speed3000rpm3450rpm3900rpm
Corrosion ResistanceUncoatedZinc-platedStainless steel

Supplier's note

  1. Key Breakthroughs:

    • Spherical Structure: Enables ±3° angular misalignment tolerance, reducing wear in misaligned joints.
    • ISO Precision Ratings: P2/P4/P6 options meet stringent industrial standards for CNC and aerospace applications.
    • Stainless Steel Pro Model: Triple the corrosion resistance of industry benchmarks, enabling use in marine or chemical environments.

  2. Version Selection Guide:

    • Base Model: Ideal for light industrial machinery (e.g., agricultural equipment) with standard load requirements.
    • Advanced Model: Recommended for automotive suspension systems needing enhanced load capacity and speed.
    • Pro Model: Optimal for aerospace or offshore machinery, where stainless steel and 650N load capacity ensure reliability in corrosive or high-stress scenarios.

*Pro Model load capacity exceeds industry benchmarks by 20%.

Frequently asked questions

  • Which spherical plain bearing suits heavy machinery applications with frequent load changes?

  • How do I clean and maintain the SIKAC 8M bearing’s frothing nozzle?

  • Bearing Steel vs Stainless Steel: Which material is better for corrosive environments?

  • Can the SIKAC 8M bearing be customized for specific dimensions or coatings?

  • Is the SIKAC 8M bearing FDA-approved for food-grade machinery?

  • What load capacities does the SIKAC 8M bearing handle?

  • Is the SIKAC 8M suitable for automotive suspension systems?

  • Why does the SIKAC 8M use an open sealing type instead of shielded?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Spherical Plain BearingIndustrial machinery, automotive suspensionMaterial: Stainless steel (ASTM A240) ▲ Precision: P2 (±0.002 mm radial runout, ISO 1940) ▲ Structure: Spherical design (±2° angular misalignment, ISO 128)▲ Handles radial/axial loads ▲ Corrosion resistance (outperforms carbon steel)Higher cost ▲ Requires precise installation (compared to open bearings)
Deep Groove Ball BearingHigh-speed motors, pumpsMaterial: Carbon steel (AISI 1045) ▲ Design: Single-row deep groove (ISO 15) ▲ Lubrication: Grease (ISO 6743-9)Low friction ▲ High-speed capability (up to 1,200,000 DN) ▲ Compact sizeLimited axial load capacity ▲ Requires frequent lubrication
Roller Bearing (Cylindrical)Heavy machinery, conveyor systemsRoller Type: Cylindrical (ISO 355) ▲ Load Capacity: 15,000 N radial (per ISO 281) ▲ Material: Case-hardened steel▲ High radial load capacity ▲ Minimal friction under heavy loadsNot suitable for axial loads ▲ Requires alignment precision
Thrust BearingAxial load applications (e.g., turbines)Design: Axial grooves (ISO 15) ▲ Material: Bronze (ASTM B558) ▲ Max Load: 8,000 N axial (per ISO 281)▲ Optimized for axial loads ▲ Low maintenance▲ Limited radial load tolerance ▲ Higher cost for high-precision versions
Needle BearingCompact applications (e.g., gearboxes)Needle Length: 10 mm (ISO 355) ▲ Material: Chrome steel (AISI 52100) ▲ Thickness: 2.5 mm (ISO 3801)▲ Minimal space requirement ▲ High radial load capacity for size▲ Limited speed capability ▲ Requires precise shaft fits
Tapered Roller BearingAxial/radial load applications (e.g., trucks)Taper Angle: 15° (ISO 355) ▲ Load Capacity: 30,000 N combined (per ISO 281) ▲ Sealing: Double rubber seals (ISO 1524)▲ Handles combined loads ▲ Sealed design for harsh environments▲ Complex installation ▲ Higher cost than spherical bearings

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