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62204 Bearing 20x47x18mm | RHD Bearings

The basketball player of bearings - 20mm bore but stands tall at 47mm diameter.

Meet the 62204: With 1274kg (12.5kN) of engineering excellence and 20mm 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.

20mm
Bore Diameter
47mm
Outer Diameter
18mm
Width
12.5 kN
Load Rating
1274 Kg
Load Capacity
0.15 Kg
Weight
Technical Specifications Applications 📞 Call +91-9702081858
62204 Bearing 20×47×18mm - RHD Bearings

62204 BEARING SPECIFICATIONS

Precision-engineered for reliability and performance

🔍 Common Search Terms

20mm bore bearing with 47mm outer diameter 62204 bearing specifications and dimensions high speed bearing for 20mm shaft deep groove ball bearing 20x47x18 automotive bearing 62204 replacement industrial bearing with 12.5kN load capacity

📏Dimensions

d - ID (Bore Diameter)
20mm
D - OD (Outer Diameter)
47mm
B - Width
18mm
d₁ - Shoulder Diameter
≈28.8mm
D₂ - Recess Diameter
≈40.59mm
r₁,₂ - Chamfer Radius
min. 1.0mm
62204 Bearing: 20 × 47 × 18mm

Cross-Sectional View

62204 Bearing Cross-Sectional View

⚡Load Ratings

Dynamic Load (Cr) 12.5kN
Static Load (Cor) 3.28kN
Load Capacity (kN) 12.5kN
Load Capacity (kg) 1274kg

💡What This Means

Dynamic Load (12.5kN): Maximum force while rotating. Exceeding this causes rapid wear and failure within hours.
Static Load (3.28kN): 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 16000 RPM
Oil Lubrication 18000 RPM
RHD Z2V2 Bearings 1400 RPM
RHD Z3V3 Bearings 2880 RPM
RHD Z4V4 Bearings 6000+ RPM

💡What This Means

Grease Limit (16000 RPM): Heat generation increases exponentially above this. Grease breaks down, causing seizure.
Oil Advantage (18000 RPM): Better heat dissipation allows higher speed. Required for high-speed spindles.
Safe Operating Speed: Use 90% of limit (14400 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 62204 application worldwide

📊Vibration Classes

V2 Grade
Low: 130 μm/s
Med: 100 μm/s
High: 75 μm/s
V3 Grade
Low: 80 μm/s
Med: 60 μm/s
High: 45 μm/s
V4 Grade
Low: 60 μm/s
Med: 25 μm/s
High: 25 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 < 42 dB
Z3 Grade < 38 dB
Z4 Grade (Quiet) < 33 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) 0-10 μm
C0 (Normal) 5-20 μm
C3 (Loose) 13-28 μm
C4 (High Temp) 20-36 μm
C5 (Extra High Temp) 28-48 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

62204-ZZ

Most Popular

Double metal shields

Speed Factor: 0.9 (14400 RPM)
Protection: Dust protection
Lubrication: Sealed for life

When to Use 62204-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

62204-2RS

Protected

Double rubber seals

Speed Factor: 0.7 (11200 RPM)
Protection: Moisture and dust
Lubrication: Sealed for life

When to Use 62204-2RS

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

62204

High Speed

Open bearing, no seals

Speed Factor: 1.0 (16000 RPM)
Protection: None
Lubrication: External required

62204-Z

Balanced

Single metal shield

Speed Factor: 0.95 (15200 RPM)
Protection: Light dust protection
Lubrication: Pre-greased

62204-RS

Protected

Single rubber seal

Speed Factor: 0.8 (12800 RPM)
Protection: Moisture and dust
Lubrication: Pre-greased, sealed

APPLICATIONS

Precision performance across industries

Machinery Drives

  • Packaging rollers
  • HVAC fan pulleys
  • Small chain gearboxes
  • Hydraulic pump shafts
  • Compact conveyor ends
  • Textile thread guides
  • Rubber stamp presses
  • Automated tool changers

Key Requirements: 20mm shaft with 12.50kN (≈1274kg) dynamic, 16,000 RPM grease, 47x18mm robust mounting

Position Units

  • Lab rotary tables
  • Miniature robot wrists
  • CNC rotary axis supports
  • Precision test rigs
  • Goniometer rotation modules
  • Light-duty cam followers
  • Analytical balance pivots
  • Map plotter heads

Key Requirements: 20mm bore, 3.28kN (≈334kg) static, for accurate repeatable motion

Transport Devices

  • Mail sorting tray rollers
  • Retail display turners
  • Folding bike hinges
  • Utility cart wheel joints
  • Small luggage rollers
  • Display rack rotators
  • Retail automation pivots
  • Tool supply conveyors

Key Requirements: 20mm bore, 18mm width, oil- or grease-compatible for frequent service

Compatible Models & Shaft Requirements

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

🔄Related Models

6804 (20×32×7mm) 6904 (20×37×9mm) 6004 (20×42×12mm) 16004 (20×42×8mm) 6204 (20×47×14mm) 6304 (20×52×15mm) 62304 (20×52×21mm)

🔧Shaft Requirements

Nominal Diameter 20.000mm
Tolerance Grade h6 (19.987-20.000mm)
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

Shares the 20mm bore (ID) with 6804, 6904, 6004, so it can be considered where the shaft is fixed at 20mm. The 62204 is rated 12.50kN dynamic / 3.28kN static at 47mm OD — more capacity than the 6004 (9.38kN) and less than the heavier-duty 6304 (15.80kN).

💰Value Engineering

Best value in 20mm bore category for 12.5kN performance. Quality bearings last 3-10x longer than cheap alternatives, reducing total cost of ownership.

FREQUENTLY ASKED QUESTIONS

Expert guidance for 62204 bearing applications

Bearing Selection & Replacement ▼

What makes 62204 bearing suitable for 20mm shaft applications?

62204 bearing features 20mm bore diameter with h6 tolerance (19.987-20.000mm) for perfect shaft fit and optimal performance.
Why This Matters
Proper bore fit prevents slippage, reduces vibration, and ensures maximum load transfer efficiency.
How To Handle It
Measure shaft diameter precisely and select h6 tolerance for standard applications or consult for special requirements.
Use proper installation tools to avoid damaging bearing during press-fit installation.

Can 62204 replace other 20mm bore bearings?

Yes, 62204 is ISO 15:2011 compliant and directly interchangeable with other standard 20x47x18mm bearings.
Why This Matters
Standard dimensions ensure seamless replacement without equipment modification or downtime.
How To Handle It
Verify load and speed requirements match 62204 specifications (1275.0kg (12.5kN) dynamic, 16,000 RPM).
Check seal type compatibility - open, shielded, or sealed versions available.

What's the difference between 62204 and 6204 bearings?

62204 has 18mm width vs 14mm in 6204, providing higher load capacity (1275.0kg (12.5kN) vs 12.8kN) and better stability.
Why This Matters
Increased width distributes loads more effectively and provides better resistance to misalignment.
How To Handle It
Choose 62204 for higher load applications or when additional stability is required.
62204 series offers better performance in applications with axial loads or vibration.
Installation & Maintenance ▼

What's the proper installation procedure for 62204 bearing?

Use proper bearing installation tools, apply force to outer ring only, and ensure shaft and housing are clean and properly sized.
Why This Matters
Correct installation prevents bearing damage, ensures optimal performance, and maximizes service life.
How To Handle It
Heat housing to 80-100°C for interference fits, use installation sleeves, and avoid hammering directly on bearing.
Professional installation can extend bearing life by 50% compared to improper methods.

How often should 62204 bearing be lubricated?

Open bearings require regular lubrication every 3-6 months; sealed bearings are lubricated for life and don't require maintenance.
Why This Matters
Proper lubrication prevents wear, reduces friction, and maintains optimal operating temperature.
How To Handle It
Use high-quality grease suitable for bearing speed and temperature conditions.
Monitor bearing temperature - increase of 15°C above ambient indicates lubrication issues.

What's the expected service life of 62204 bearing?

Under proper conditions, 62204 bearing can provide 50,000+ hours of service life with professional installation and maintenance.
Why This Matters
Understanding service life helps plan maintenance schedules and replacement cycles.
How To Handle It
Monitor vibration levels, temperature, and noise to predict maintenance needs.
Proper installation and lubrication can extend service life by 3-5x compared to poor practices.
Troubleshooting & Problem Solving ▼

Why is my 62204 bearing running hot?

Overheating usually indicates insufficient lubrication, excessive load, or misalignment issues.
Why This Matters
High temperature accelerates wear and can lead to premature bearing failure.
How To Handle It
Check lubrication levels, verify load ratings, and inspect for misalignment or contamination.
Temperature increase of 15°C above ambient requires immediate attention.

What causes excessive noise in 62204 bearing?

Noise typically results from contamination, insufficient lubrication, or bearing damage from improper handling.
Why This Matters
Unusual noise indicates potential failure and should be addressed immediately.
How To Handle It
Inspect for contamination, check lubrication, and examine bearing for visible damage.
Use vibration analysis tools for early detection of bearing issues.

How do I identify if 62204 bearing needs replacement?

Signs include excessive play, rough rotation, unusual noise, high temperature, or visible damage to raceways or balls.
Why This Matters
Early replacement prevents equipment damage and reduces downtime costs.
How To Handle It
Perform regular inspections and replace at first signs of deterioration.
Keep spare bearings on hand for critical applications to minimize downtime.
Cost & Performance Optimization ▼

What's the cost-benefit of choosing 62204 over cheaper alternatives?

62204's Gcr15 steel construction and professional quality provide 3-10x longer service life than cheap alternatives.
Why This Matters
Higher upfront cost is offset by reduced replacement frequency and maintenance costs.
How To Handle It
Calculate total cost of ownership including installation, maintenance, and downtime costs.
Quality bearings reduce total cost of ownership by 60-80% over equipment lifetime.

How can I optimize 62204 bearing performance?

Ensure proper installation, use appropriate lubrication, maintain clean operating environment, and monitor operating conditions.
Why This Matters
Optimized performance maximizes bearing life and reduces maintenance requirements.
How To Handle It
Follow manufacturer guidelines, use quality lubricants, and implement predictive maintenance.
Proper maintenance can extend bearing life by 200-300% compared to neglect.

What bulk pricing is available for 62204 bearings?

Contact RHD Bearings for custom bulk pricing - significant discounts available for orders of 100+ units.
Why This Matters
Bulk purchasing reduces per-unit costs and ensures consistent supply for production needs.
How To Handle It
Contact sales team with quantity requirements and delivery schedule needs.
OEM partnerships available with dedicated support and custom packaging options.
🔥 FAST DELIVERY

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