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605 Deep Groove Ball Bearing 5×14×5mm | RHD Bearings

Like a tiny superhero, 5mm bore of pure determination that keeps your gadgets from having a meltdown.

Meet the 605: With 107kg (1.05kN) of engineering excellence and 5mm precision, this bearing delivers the perfect blend of personality and performance for your critical applications. The most widely used bearing in electronics, small motors, and precision instruments.

5mm
Bore Diameter
14mm
Outer Diameter
5mm
Width
1.05 kN
Load Rating
107 Kg
Load Capacity
0.0045 Kg
Weight
Technical Specifications Applications 📞 Call +91-9702081858
605 Bearing 5×14×5mm - RHD Bearings

605 BEARING SPECIFICATIONS

Precision-engineered for reliability and performance

🔍 Common Search Terms

605 bearing dimensions 5mm bore ball bearing small motor bearing electric motor bearing 5mm precision instrument bearing consumer electronics bearing

📏Dimensions

d - ID (Bore Diameter)
5mm
D - OD (Outer Diameter)
14mm
B - Width
5mm
605 Bearing: 5 × 14 × 5mm

Bearing Cross-Sectional View

605 Deep Groove Ball Bearing Technical Drawing

⚡Load Ratings

Dynamic Load (Cr) 1.05kN
Static Load (Cor) 0.5kN
Load Capacity (kN) 1.05kN
Load Capacity (kg) 107kg

💡What This Means

Dynamic Load (1.05kN): Maximum force while rotating. Exceeding this causes rapid wear and failure within hours.
Static Load (0.5kN): Maximum force when stationary. Use 80% for safety.
Calculate Your Load: Measure shaft forces, belt tensions, or gear loads. Include shock/vibration factors.
Failure Warning: Overloading causes bearing raceways to crack and balls to flatten permanently.

🔄Speed Limits

Grease Lubrication 30000 RPM
Oil Lubrication 38000 RPM
RHD Z2V2 Bearings 1400 RPM
RHD Z3V3 Bearings 2880 RPM
RHD Z4V4 Bearings 6000+ RPM

💡What This Means

Grease Limit (30000 RPM): Heat generation increases exponentially above this. Grease breaks down, causing seizure.
Oil Advantage (38000 RPM): Better heat dissipation allows higher speed. Required for high-speed spindles.
Safe Operating Speed: Use 90% of limit (27000 RPM) for maximum L10 life of 10,000+ hours.
Failure Mode: Exceeding speed causes cage failure, ball skidding, and catastrophic overheating within minutes.

🔧Material & Quality

Steel Grade SAE52100
Ball Grade G10
Carbon Content 0.95-1.05%
Chromium Content 1.40-1.65%
ISO Standard 15:2011 Compliant

💡What This Means

SAE52100 Chrome Steel: Premium bearing steel - harder than tool steel
G10 Balls: Ultra-precision balls with ±0.25µm tolerance
High Carbon: Superior hardness and wear resistance
Chromium: Adds corrosion resistance and toughness
ISO Standard: Fits any 605 application worldwide

📊Vibration Classes

V2 Grade
Low: 58 μm/s
Med: 36 μm/s
High: 30 μm/s
V3 Grade
Low: 35 μm/s
Med: 21 μm/s
High: 18 μm/s
V4 Grade
Low: 32 μm/s
Med: 11 μm/s
High: 11 μm/s

💡What This Means

V2 Grade: Standard grade - good for general applications
V3 Grade: Low vibration - like a smooth car engine
V4 Grade: Ultra-smooth - for precision instruments
Frequency Bands: Measured across different rotation speeds

🔇Noise Levels

Z2 Grade < 34 dB
Z3 Grade < 30 dB
Z4 Grade (Quiet) < 26 dB
Application Precision Equipment

💡What This Means

Z2 Grade: Quiet as a library - good for most applications
Z3 Grade: Very quiet - like a whisper (40 dB = normal whisper)
Z4 Grade: Ultra-quiet - perfect for bedroom fans, medical equipment
Application: Ideal for sensitive environments

⚙️Internal Clearance

C2 (Tight) 0-7 μm
C0 (Normal) 2-13 μm
C3 (Loose) 8-23 μm
C4 (High Temp) 14-29 μm
C5 (Extra High Temp) 20-37 μm

💡What This Means

C2 (Tight): Precision applications - less play, more accurate
C0 (Normal): Standard choice - works for most applications
C3 (Loose): Better for hot environments - allows thermal expansion
C4 (Exta Loose): Hot or tight-fit setups — extra room for thermal expansion.
C5 (Max Loose): Extreme heat/tight fits or near-limit speeds — maximum expansion allowance

SEAL OPTIONS

Choose the right protection for your application

605-ZZ

Most Popular

Double metal shields

Speed Factor: 0.9 (27000 RPM)
Protection: Dust protection
Lubrication: Sealed for life

When to Use 605-ZZ

Best For: Electronics, small motors, skateboards, general machinery
Conditions: Dry environments, moderate dust, precision applications
Achieves: Excellent balance of speed and protection for most applications
Avoid When: Heavy water exposure, chemical environments, food processing

605-2RS

Protected

Double rubber seals

Speed Factor: 0.7 (21000 RPM)
Protection: Moisture and dust
Lubrication: Sealed for life

When to Use 605-2RS

Best For: Outdoor applications, appliances, automotive systems, dirty environments
Conditions: Moisture, dust, contamination, washdown areas, food processing
Achieves: Maximum protection and zero maintenance requirements
Trade-off: Lower speed limit but superior environmental protection

605

High Speed

Open bearing, no seals

Speed Factor: 1.0 (30000 RPM)
Protection: None
Lubrication: External required

605-Z

Balanced

Single metal shield

Speed Factor: 0.95 (28500 RPM)
Protection: Light dust protection
Lubrication: Pre-greased

605-RS

Protected

Single rubber seal

Speed Factor: 0.8 (24000 RPM)
Protection: Moisture and dust
Lubrication: Pre-greased, sealed

APPLICATIONS

Precision performance across industries

Small Motor Applications

  • electric motors
  • servo motors
  • stepper motors
  • brushless motors
  • gear motors
  • pump motors
  • fan motors
  • compressor motors

Key Requirements: 5mm shaft with 1.05kN dynamic load capacity, 30,000 RPM grease lubrication, compact 14×5mm profile for small motor applications

Precision Instrumentation

  • optical instruments
  • measuring devices
  • calibration tools
  • dental equipment
  • micro-motors
  • sensor assemblies
  • test equipment
  • laboratory instruments

Key Requirements: 5mm precision shaft with 0.50kN static load rating, low friction operation, compact dimensions for precision instruments

Consumer Electronics

  • appliance motors
  • power tools
  • garden equipment
  • exercise equipment
  • toy mechanisms
  • hobby motors
  • model making
  • craft tools

Key Requirements: 5mm shaft with 107kg load capacity, reliable 30,000 RPM operation, lightweight 4.5g design for consumer applications

Compatible Models & Shaft Requirements

Find bearings with the same bore size and ensure proper shaft preparation

🔄Related Models

625 (5×16×5mm) 635 (5×19×6mm) 685 (5×11×3mm) 695 (5×13×4mm)

🔧Shaft Requirements

Nominal Diameter 5.000mm
Tolerance Grade h6 (4.992-5.000mm)
Surface Finish Ra 0.8μm max
Runout Tolerance 0.013mm max

🎯Application-Specific Options

High Temperature: C3 clearance recommended
High Speed: RHD V3 & V4 bearings recommended
Corrosive Environment: SS (Stainless Steel) bearings recommended

Professional Expertise & Standards

Technical insights from 20+ years of bearing engineering and manufacturing excellence

📋ISO Compliance

ISO 15:2011 compliant dimensions ensure interchangeability with global bearing standards and seamless replacement in existing equipment.

🔬Material Science

Gcr15 chrome steel composition optimized for small bearing applications, providing superior hardness, wear resistance, and fatigue life.

⚙️Precision Engineering

C0 clearance standard for most applications, C3 available for high-temperature use. h6 shaft tolerance recommended for optimal performance.

🔧Professional Installation

Professional installation required for maximum 50,000-hour service life. Proper tools and techniques prevent 80% of premature failures.

📊Performance Comparison

Handles 0.30kN more load than 604 bearings while maintaining compact design. Superior Gcr15 steel vs. standard steel in competing products.

💰Value Engineering

Best value in small-bearing category for 1.05kN performance. Quality bearings last 3-10x longer than cheap alternatives, reducing total cost of ownership.

FREQUENTLY ASKED QUESTIONS

Expert guidance for 605 bearing applications

Bearing Selection & Replacement ▼

When should I choose 605 bearing over 604 alternatives?

Choose 605 when you need 5mm shaft diameter with 107.1kg (1.05kN) dynamic load capacity for small motors, precision instruments, or applications requiring higher load capacity than 604 bearings can provide.
Why This Matters
Selecting the right bearing size prevents system redesign, reduces costs, and ensures optimal performance for your specific application requirements.
How To Handle It
Measure your shaft diameter (must be exactly 5mm), verify load requirements (≤107.1kg (1.05kN) dynamic), and confirm space constraints allow 14×5mm envelope.
605 is ideal for small electric motors, servo systems, and precision instruments where 5mm shaft is required.

Can 605 bearing replace other 5mm bore bearings?

Yes, 605 can replace other 5mm bore bearings if they have compatible outer diameter (≤14mm) and width (≤5mm) requirements, and load capacity needs (≤107.1kg (1.05kN) dynamic).
Why This Matters
Proper replacement ensures system compatibility, prevents premature failures, and maintains performance specifications.
How To Handle It
Verify dimensional compatibility (d×D×B), check load ratings, confirm clearance requirements, and ensure speed limitations are met.
Always check both dimensional and performance compatibility before replacement to avoid system issues.

What applications are 605 bearings NOT suitable for?

605 bearings are NOT suitable for applications requiring dynamic loads >107.1kg (1.05kN), speeds >30,000 RPM, operating temperatures >120°C, or environments with heavy contamination.
Why This Matters
Using bearings beyond their specifications leads to premature failure, increased maintenance costs, and potential system damage.
How To Handle It
For higher loads, consider 606 or 607 bearings. For higher speeds, use oil lubrication. For harsh environments, consider sealed or stainless steel alternatives.
Always verify application requirements against bearing specifications to ensure long service life.
Installation & Maintenance ▼

What tools are needed for proper 605 bearing installation?

For 605 bearing installation, you need precision tools: 5mm bore gauge, micrometer for shaft measurement, bearing heater (80-100°C), clean gloves, and appropriate mounting tools for the 14mm outer diameter.
Why This Matters
Proper tools ensure accurate installation, prevent bearing damage, and maximize service life while maintaining precision requirements.
How To Handle It
Clean all components thoroughly, verify shaft dimensions (4.992-5.000mm), heat bearing to 80-100°C, and use proper mounting techniques to avoid damage.
Never force-fit 605 bearings - the 5mm bore requires precise shaft tolerances for optimal performance.

How often should 605 bearings be lubricated?

Open 605 bearings require lubrication every 3-6 months depending on operating conditions. Shielded/sealed versions are lubricated for life but may need replacement after 2-3 years.
Why This Matters
Proper lubrication prevents wear, reduces friction, and extends bearing life. Over-lubrication can cause overheating, while under-lubrication leads to premature failure.
How To Handle It
Monitor operating temperature and noise levels. For open bearings, use high-quality grease compatible with operating conditions. Replace sealed bearings when performance degrades.
605 bearings in high-speed applications (>20,000 RPM) may require more frequent lubrication due to increased operating temperatures.

What maintenance schedule is recommended for 605 bearings?

For 605 bearings, inspect monthly for noise, vibration, and temperature changes. Clean and relubricate open bearings every 3-6 months. Replace sealed bearings every 2-3 years or when performance degrades.
Why This Matters
Regular maintenance prevents unexpected failures, maintains precision performance, and extends bearing service life in critical applications.
How To Handle It
Establish maintenance logs, monitor operating parameters, and replace bearings proactively rather than reactively. Use vibration analysis for early failure detection.
605 bearings in precision instruments require more frequent inspection due to critical performance requirements.
Troubleshooting & Problem Solving ▼

Why is my 605 bearing making unusual noise?

Unusual noise in 605 bearings typically indicates contamination, improper lubrication, misalignment, or wear. The 5mm bore is sensitive to shaft imperfections and contamination due to its small size.
Why This Matters
Early noise detection prevents bearing failure, maintains system precision, and reduces maintenance costs in small bearing applications.
How To Handle It
Inspect for contamination, check lubrication levels, verify shaft alignment and surface finish, and replace bearing if noise persists or worsens.
605 bearings amplify noise due to their small size - what sounds minor in larger bearings can indicate serious issues in small bearings.

What causes 605 bearing overheating?

605 bearing overheating is caused by over-lubrication, excessive load (>107.1kg (1.05kN)), high speeds (>30,000 RPM), misalignment, or contamination. The small size makes 605 bearings sensitive to these conditions.
Why This Matters
Overheating accelerates wear, reduces precision, and can cause catastrophic failure in small bearing applications.
How To Handle It
Check lubrication quantity and type, verify load and speed limits, inspect alignment, clean contamination, and ensure proper ventilation around the bearing.
605 bearings have limited heat dissipation due to small size - monitor temperature closely in high-speed applications.

How do I diagnose 605 bearing vibration issues?

Diagnose 605 bearing vibration by checking shaft runout (≤0.013mm), verifying balance, inspecting for contamination, and measuring vibration levels against V2/V3/V4 standards for 5mm bore bearings.
Why This Matters
Excessive vibration reduces precision, increases wear, and can damage connected equipment in small bearing applications.
How To Handle It
Use vibration analysis tools, check shaft specifications, verify bearing installation, and replace bearing if vibration exceeds acceptable limits.
605 bearings require higher precision in shaft preparation due to their small size and sensitivity to imperfections.
Cost & Performance Optimization ▼

How can I optimize 605 bearing performance for cost efficiency?

Optimize 605 bearing performance by selecting appropriate clearance (C0 for most applications), using proper lubrication, maintaining clean environment, and implementing preventive maintenance to extend service life beyond 50,000 hours.
Why This Matters
Performance optimization reduces total cost of ownership, minimizes downtime, and ensures consistent precision in small bearing applications.
How To Handle It
Choose clearance based on application requirements, establish maintenance schedules, monitor operating conditions, and replace bearings proactively rather than reactively.
605 bearings offer excellent value when properly maintained - their compact size means replacement costs are minimal compared to system downtime.

What factors affect 605 bearing service life?

605 bearing service life is affected by load conditions (≤107.1kg (1.05kN)), operating speed (≤30,000 RPM), environmental cleanliness, lubrication quality, installation precision, and maintenance practices.
Why This Matters
Understanding service life factors helps optimize maintenance schedules, reduce costs, and ensure reliable operation in critical small bearing applications.
How To Handle It
Monitor operating parameters, maintain clean environment, use quality lubricants, implement preventive maintenance, and replace bearings based on performance degradation.
605 bearings can achieve 50,000+ hours service life when operated within specifications and properly maintained.

How do 605 bearings compare to alternatives in terms of total cost?

605 bearings offer excellent total cost value for small bearing applications due to their compact size, reliable performance, and low replacement costs. Quality 605 bearings last 3-10x longer than cheap alternatives, reducing total cost of ownership.
Why This Matters
Total cost analysis helps make informed purchasing decisions, considering initial cost, maintenance, replacement, and downtime costs over the bearing's service life.
How To Handle It
Compare initial costs, expected service life, maintenance requirements, and replacement costs. Consider system downtime costs when evaluating alternatives.
605 bearings provide optimal cost-performance ratio for small bearing applications when quality and proper maintenance are prioritized.
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