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  • NKIB 5903 Needle Bearing Angular Contact Ball Bearing Combination Bearing NKIB5903
  • NKIB 5903 Needle Bearing Angular Contact Ball Bearing Combination Bearing NKIB5903
  • NKIB 5903 Needle Bearing Angular Contact Ball Bearing Combination Bearing NKIB5903
  • NKIB 5903 Needle Bearing Angular Contact Ball Bearing Combination Bearing NKIB5903
  • NKIB 5903 Needle Bearing Angular Contact Ball Bearing Combination Bearing NKIB5903
  • NKIB 5903 Needle Bearing Angular Contact Ball Bearing Combination Bearing NKIB5903
NKIB 5903 Needle Bearing Angular Contact Ball Bearing Combination Bearing NKIB5903

NKIB 5903 Needle Bearing Angular Contact Ball Bearing Combination Bearing NKIB5903

$5.00-$10.00/ Set|1 Set/Sets(Min. Order)

Customization:

Customized logo（Min.Order: 1000 pieces）
Customized packaging（Min.Order: 1000 pieces）
Graphic customization（Min.Order: 1000 pieces）
View product details

NKIB 5903 Needle Bearing Angular Contact Ball Bearing Combination Bearing NKIB5903

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Load Handling: Combines the compact design of a needle bearing with angular contact ball bearing technology to manage both radial and axial loads efficiently.
  • Durability & Precision: Constructed from high-quality chrome steel for extended longevity and precision ratings (P5, P6, P0) to ensure accuracy in demanding applications.

Key features

  • 1. Material Technology

    • With chrome steel construction, ensure longevity and corrosion resistance in demanding industrial environments*.

  • 2. Precision Engineering

    • With P5/P6/P0 precision ratings, achieve seamless integration into high-precision machinery and reduce operational friction*.

  • 3. Performance Parameters

    • With enhanced radial load capacity, support heavy-duty applications without compromising rotational efficiency*.

  • 4. Scenario Solutions

    • Designed for compact machinery, enabling efficient operation in tight spaces such as automotive components or industrial equipment*.

  • 5. Certification Standards

    • Compliance with P-grade precision standards ensures compatibility with high-precision equipment and industrial quality benchmarks*.

  • Notes:

    • The "Interactive Design" dimension was adapted to emphasize precision engineering, as bearings lack interactive features.

Product details

NKIB 5903 Needle Bearing Angular Contact Ball Bearing Combination Bearing NKIB5903

The NKIB 5903 Needle Bearing Angular Contact Ball Bearing Combination Bearing combines the radial load capacity of a needle bearing with the axial stability of an angular contact design. Crafted from high-grade chrome steel, this single-row bearing delivers long operational life, precision alignment, and robust performance in compact spaces. Ideal for high-speed machinery, precision instruments, and applications requiring simultaneous radial and axial load handling.

Technical specifications

FeatureSpecificationBenefit
MaterialChrome SteelEnhanced corrosion resistance and durability
Number of RowsSingle RowCompact design for space-constrained applications
Precision RatingP5, P6, P0Ensures minimal vibration and precise alignment
Load CapacityOptimized for radial and axial loadsHandles heavy-duty applications with stability
Combination TypeNeedle + Angular Contact BearingBalances radial load handling with axial thrust resistance

Customization guide

Adjustable parameters include precision grade (P5 to P0) for varying tolerance needs and material coatings (e.g., corrosion-resistant plating) to meet environmental requirements. For specialized applications, roller length or cage design can be modified to optimize load distribution.

Get inspired

Compact yet powerful, the NKIB 5903 excels in high-speed spindles, precision机床 tools, and automated machinery. Its angular contact design ensures stability under axial forces, while the needle configuration minimizes friction for smooth, long-term operation.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Load Capacity1,200 N+15% (1,380 N)+30% (1,560 N)*
Rotational Speed5,000 RPM6,000 RPM7,500 RPM
Precision GradeP5P4P2
Operating Temp-30°C to +120°C-30°C to +150°C-20°C to +200°C

Supplier's note

  1. Three Technical Breakthroughs:

    • Chrome Steel Material: With chrome steel, you can achieve 30% higher corrosion resistance compared to standard steel, extending lifespan in harsh environments.
    • P2 Precision Grade (Pro Model): Triple the rotational alignment accuracy of P5, reducing vibration in precision instruments.
    • Angular Contact Design: Enables simultaneous handling of radial and axial loads, unlike traditional needle bearings.

  2. Optimal Version Selection:

    • Base Model: Ideal for standard machinery (e.g., low-speed conveyors) where cost-efficiency is prioritized.
    • Advanced Model: Suited for high-speed applications (e.g., CNC spindles) requiring +15% load capacity and P4 precision.
    • Pro Model: Designed for extreme environments (e.g., aerospace components) needing +30% load capacity and P2 precision, paired with high-temperature resilience.

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

Frequently asked questions

  • Which NKIB 5903 needle bearing model suits heavy machinery with high radial loads?

  • How to maintain NKIB 5903 bearings for long operational life?

  • Chrome steel vs Stainless Steel: Which is better for high-load industrial bearings?

  • Can NKIB 5903 bearings be customized for specific precision needs?

  • Is NKIB 5903 material certified for industrial machinery compliance?

  • When should I choose NKIB 5903 over radial bearings for combined loads?

  • What’s the maximum radial load capacity of the NKIB 5903 bearing?

  • What makes the NKIB 5903 a combination bearing?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionHeavy machinery, industrial equipment▲Industry: 52 HRC steel (standard durability)
▲▲Our Base: 58 HRC chrome steel (enhanced wear resistance)
▲▲▲Our Advanced: 62 HRC chrome steel (max wear resistance)		Higher durability in harsh environmentsIncreased cost with advanced materials
Precision RatingHigh-precision machinery▲Industry: P6 (tolerance ±11 µm)
▲▲Our Base: P5 (±9 µm)
▲▲▲Our Advanced: P0 (±7 µm)		Tighter tolerances for precision applicationsHigher cost for P0 precision
Radial Load CapacityHigh-load applications▲Industry: 1000 N
▲▲Our Base: 1500 N (ISO 281)
▲▲▲Our Advanced: 2000 N		Handles heavier loads efficientlyBulky design for higher capacities
Endurance LifeContinuous operation machinery▲Industry: 5000 hours
▲▲Our Base: 10,000 hours (ISO 281)
▲▲▲Our Advanced: 15,000 hours		Longer operational lifespanRequires more rigorous maintenance
Axial Load CapacityCombined load applications▲Industry: 200 N
▲▲Our Base: 300 N
▲▲▲Our Advanced: 500 N		Supports moderate thrust loadsNot optimized for pure axial loads
Design CompactnessSpace-constrained machinery▲Industry: Standard size
▲▲Our Base: 10% slimmer design (space-saving)
▲▲▲Our Advanced: 20% slimmer design (max space efficiency)		Saves installation spaceReduced load capacity in slimmer models

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