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62218 Bearing 90x160x40mm | RHD Bearings

90mm bore with the towering presence of someone who's earned their height.

Meet the 62218: With 7135kg (70.0kN) of engineering excellence and 90mm 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.

90mm
Bore Diameter
160mm
Outer Diameter
40mm
Width
70.0 kN
Load Rating
7135 Kg
Load Capacity
3.22 Kg
Weight
Technical Specifications Applications 📞 Call +91-9702081858
62218 Bearing 90×160×40mm - RHD Bearings

62218 BEARING SPECIFICATIONS

Precision-engineered for reliability and performance

🔍 Common Search Terms

90mm bearing ultra heavy duty applications 62218 bearing load capacity specifications industrial bearing 90x160x40 dimensions construction equipment bearing 90mm machinery bearing Mumbai supplier ultra high load bearing 90mm shaft

📏Dimensions

d - ID (Bore Diameter)
90mm
D - OD (Outer Diameter)
160mm
B - Width
40mm
62218 Bearing: 90 × 160 × 40mm

Cross-Sectional View

62218 deep groove ball bearing technical drawing showing cross-sectional view, dimensions and specifications

⚡Load Ratings

Dynamic Load (Cr) 70.0kN
Static Load (Cor) 28.5kN
Load Capacity (kN) 70.0kN
Load Capacity (kg) 7135kg

💡What This Means

Dynamic Load (70.0kN): Maximum force while rotating. Exceeding this causes rapid wear and failure within hours.
Static Load (28.5kN): 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 3600 RPM
Oil Lubrication 4600 RPM
RHD Z2V2 Bearings 1400 RPM
RHD Z3V3 Bearings 2880 RPM
RHD Z4V4 Bearings 6000+ RPM

💡What This Means

Grease Limit (3600 RPM): Heat generation increases exponentially above this. Grease breaks down, causing seizure.
Oil Advantage (4600 RPM): Better heat dissipation allows higher speed. Required for high-speed spindles.
Safe Operating Speed: Use 90% of limit (3240 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 62218 application worldwide

📊Vibration Classes

V2 Grade
Low: 210 μm/s
Med: 180 μm/s
High: 270 μm/s
V3 Grade
Low: 145 μm/s
Med: 125 μm/s
High: 180 μm/s
V4 Grade
Low: 75 μm/s
Med: 75 μm/s
High: 115 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 < 53 dB
Z3 Grade < 48 dB
Z4 Grade (Quiet) < 42 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) 1-18 μm
C0 (Normal) 12-36 μm
C3 (Loose) 30-58 μm
C4 (High Temp) 53-84 μm
C5 (Extra High Temp) 75-120 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

62218-ZZ

Most Popular

Double metal shields

Speed Factor: 0.9 (3240 RPM)
Protection: Dust protection
Lubrication: Sealed for life

When to Use 62218-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

62218-2RS

Protected

Double rubber seals

Speed Factor: 0.7 (2520 RPM)
Protection: Moisture and dust
Lubrication: Sealed for life

When to Use 62218-2RS

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

62218

High Speed

Open bearing, no seals

Speed Factor: 1.0 (3600 RPM)
Protection: None
Lubrication: External required

62218-Z

Balanced

Single metal shield

Speed Factor: 0.95 (3420 RPM)
Protection: Light dust protection
Lubrication: Pre-greased

62218-RS

Protected

Single rubber seal

Speed Factor: 0.8 (2880 RPM)
Protection: Moisture and dust
Lubrication: Pre-greased, sealed

APPLICATIONS

Precision performance across industries

Rotary Actuators

  • Large process valves
  • Swing gate actuators
  • Industrial jib pivots
  • Bulk delivery elbows
  • High-torque gearboxes
  • Mixer arm linkages
  • Heavy rotary joints
  • Cross loader carriages

Key Requirements: 90mm shaft with 65.8kN (≈6,710kg) dynamic, 2,400 RPM grease, 160x37mm for rotary actuation

Site Movers

  • Mining truck axles
  • Aggregate wagon drive
  • Field dumper wheels
  • Material yard tractors
  • Heavy shift platforms
  • Bulk material caddies
  • Loading yard rollers
  • Engine transporters

Key Requirements: 90mm bore, 53kN (≈5,400kg) static, supports field shifts

Transfer Beds

  • Rail transfer axles
  • Conveyor platform joints
  • Heavy haul rollers
  • Utility trestle axles
  • Plant row change wheels
  • Bulk feed rail units
  • Maintenance base rollers
  • Log conveyor rollers

Key Requirements: 90mm bore, 37mm width, heavy load optimized

Compatible Models & Shaft Requirements

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

🔄Related Models

6218 (90×160×30mm) 6318 (90×190×43mm) 16018 (90×140×16mm)

🔧Shaft Requirements

Nominal Diameter 90.000mm
Tolerance Grade h6 (89.987-90.013mm)
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 extreme-duty applications, providing superior hardness, wear resistance, and fatigue life under massive loads.

⚙️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 service life. Proper tools and techniques prevent 80% of premature failures in extreme-duty applications.

📊Performance Comparison

Handles 7140kg load capacity with extended 40mm width. Superior Gcr15 steel vs. standard steel in competing products.

💰Value Engineering

Premium quality with competitive pricing for extreme-duty applications. Quality bearings last 3-10x longer than cheap alternatives, reducing total cost of ownership.

FREQUENTLY ASKED QUESTIONS

Expert guidance for 62218 bearing applications

Bearing Selection & Replacement ▼

Can a 62218 bearing handle 7000kg loads in mining equipment?

Yes, the 62218 can safely handle 7000kg loads with 140kg (2%) safety margin for mining applications.
Why This Matters
Mining equipment subjects bearings to extreme loads, shock, vibration, and contamination. The 62218's 7140kg capacity provides adequate margin for shock loads and misalignment common in mining operations. The extended 40mm width provides stability under multi-directional loading.
How To Handle It
Use sealed versions (62218-2RS) for contaminated mining environments. Implement robust lubrication systems and condition monitoring. Consider C3 clearance for thermal expansion from heavy loads and high temperatures.
Mining applications benefit from automatic lubrication systems - reduces maintenance and extends bearing life significantly.

What's the difference between 62218 and standard 6218 bearings?

62218 has 40mm width vs 6218's 30mm width, providing significantly higher load capacity in same bore size.
Why This Matters
The extra 10mm width increases load capacity from 9771.6kg (95.8kN) to 70.0kN dynamic load rating. This makes 62218 ideal for extreme load applications without changing shaft diameter. The wider design provides exceptional stability under combined loads and shock conditions.
How To Handle It
Verify available space - ensure 40mm width fits your application. Check shaft shoulder dimensions and housing depth requirements. Consider load requirements to justify the wider, more expensive bearing.
62218 costs 40% more than 6218 but handles 50% higher loads - excellent value for extreme-duty applications.

Is 62218 suitable for 90mm heavy construction equipment shafts?

Excellent choice for heavy construction equipment requiring maximum load capacity on 90mm shafts.
Why This Matters
Heavy construction equipment like large excavators and dozers subject bearings to extreme loads, shock, and harsh environments. The 62218's 7140kg capacity and rugged construction handle the most demanding construction applications with the extended width providing stability.
How To Handle It
Mandate sealed versions (62218-2RS) for contaminated environments. Ensure robust filtration and lubrication systems. Consider automatic greasing systems for continuous operation and reduced maintenance.
Construction equipment demands maximum protection - 62218-2RS with automatic lubrication provides 5+ year service life.
Installation & Maintenance ▼

What tools are needed to install a 3.22kg 62218 bearing properly?

Heavy-duty hydraulic puller, induction heater, and precision alignment tools for proper 90mm bore installation.
Why This Matters
Proper installation prevents 80% of premature bearing failures. The 3.22kg weight and 90mm bore with 40mm width require specialized heavy-duty tools to avoid damage. The extended width makes precise alignment critical to prevent edge loading and internal stress.
How To Handle It
Heat bearing to 80-100°C using induction heater for even heating. Use heavy-duty hydraulic tools for installation and removal. Verify shaft tolerances (h6: 89.987-90.013mm) and housing concentricity. Never use impact tools.
Laser alignment tools ensure precision installation - critical for bearings operating at high loads and speeds.

How often should I inspect a 62218 bearing running at 3400 RPM?

Daily inspections for bearings operating at 3400 RPM in extreme-duty applications.
Why This Matters
Operating at 94% of rated speed with extreme loads requires constant monitoring. The combination of high loads and speeds generates significant heat and stress. Daily monitoring prevents catastrophic failures that can destroy expensive equipment.
How To Handle It
Monitor temperature, vibration, and noise levels daily. Implement continuous condition monitoring systems where possible. Check lubrication condition and contamination weekly. Document all measurements for trending analysis.
Wireless condition monitoring systems provide 24/7 surveillance - essential for preventing catastrophic failures in critical equipment.

What lubrication schedule works for 62218 in extreme-duty applications?

Relubricate every 500-1000 operating hours depending on load, contamination, and environmental conditions.
Why This Matters
Extreme-duty applications generate massive heat and stress requiring frequent lubrication. The 62218's 7140kg capacity and harsh operating conditions accelerate lubricant degradation. Contamination can destroy bearings rapidly without proper lubrication management.
How To Handle It
Use extreme-pressure lithium complex grease for severe applications. Implement automatic lubrication systems where possible. Monitor grease condition continuously and purge contaminated lubricant immediately. Filter all lubricant supplies.
Synthetic lubricants extend service intervals to 2000+ hours while providing superior protection in extreme conditions.
Troubleshooting ▼

Why does my 62218 bearing overheat under 6800kg loads?

6800kg is 95% of capacity - verify lubrication, alignment, and consider enhanced cooling systems.
Why This Matters
Operating at 95% of rated capacity generates extreme heat, especially with any lubrication or alignment issues. The minimal safety margin leaves no room for contamination, thermal effects, or shock loads that increase effective loading beyond design limits.
How To Handle It
Verify actual loads including all dynamic and shock factors. Check alignment within 0.013mm tolerance using laser equipment. Ensure adequate lubrication flow rate and quality. Implement forced cooling or consider larger bearing if temperatures exceed 70°C.
Continuous temperature monitoring with alarms prevents thermal damage - temperatures above 80°C require immediate shutdown.

What causes severe vibration in 62218 bearings at 3200 RPM?

Severe vibration at 3200 RPM indicates internal damage, severe misalignment, or contamination requiring immediate shutdown.
Why This Matters
High-speed vibration in large bearings indicates serious internal problems that will cause catastrophic failure rapidly. The extended 40mm width makes the bearing sensitive to mounting errors and misalignment. Continued operation risks equipment destruction.
How To Handle It
Stop operation immediately and inspect thoroughly. Check all mounting surfaces, shaft runout, and housing concentricity using precision instruments. Look for contamination, bearing damage, or lubrication failure. Replace bearing if internal damage suspected.
Vibration analysis can differentiate between alignment, contamination, and bearing damage - essential for proper diagnosis.

How do I diagnose problems with 90mm 62218 bearings in critical equipment?

Use comprehensive monitoring including temperature, vibration, ultrasonic, and oil analysis for complete diagnosis.
Why This Matters
The 90mm bore and extreme-duty applications make systematic diagnosis critical for preventing catastrophic failures and equipment destruction. Different diagnostic techniques reveal specific problem types requiring different solutions and intervention timing.
How To Handle It
Establish comprehensive baseline measurements when new. Use thermal imaging, vibration analysis, ultrasonic monitoring, and lubricant analysis. Implement trending software for pattern recognition and failure prediction.
Predictive maintenance programs using multiple diagnostic techniques can predict failures 2-3 months in advance.
Cost & Performance ▼

Is it worth upgrading from 6000kg to 62218's 7140kg capacity?

Yes, the extra 1140kg capacity provides 19% safety margin and dramatically extended service life.
Why This Matters
The significant capacity increase reduces stress levels dramatically, potentially extending bearing life by 3-5 times. The cost difference is minimal compared to equipment downtime, replacement costs, and safety risks from catastrophic failures in heavy equipment.
How To Handle It
Calculate total lifecycle cost including installation, downtime, emergency repairs, and safety risks. Consider liability and insurance implications of equipment failures. Evaluate current failure patterns and maintenance costs.
19% capacity margin in extreme applications can increase bearing life by 400-500% - exceptional return on investment.

When should I pay more for bearings rated above 3600 RPM?

Only when operating speeds regularly exceed 3200 RPM or require speed capability for process optimization.
Why This Matters
Higher speed ratings require extremely tight tolerances, premium materials, and specialized manufacturing processes - significantly increasing cost. The 3600 RPM rating handles most heavy industrial applications effectively without the premium cost.
How To Handle It
Analyze all operating speeds including startup transients, maximum conditions, and future requirements. Consider process optimization benefits against premium bearing costs. Compare total system cost including speed-related modifications.
Specify speed rating 10-15% above maximum operating speed for extreme-duty applications - provides safety without excessive cost.

What's the cost difference between 62218 and smaller 62217 bearings?

62218 costs 25-35% more than 62217 but provides 20% higher load capacity for 90mm vs 85mm shafts.
Why This Matters
The 5mm size progression involves significant material volume and manufacturing complexity increases. The capacity improvement and larger size require different tooling and handling equipment. Understanding cost scaling helps optimize bearing selection.
How To Handle It
Compare total application cost including shaft modifications, tooling, and handling equipment. Evaluate if load requirements justify the larger size or if design optimization could accommodate smaller bearings. Consider system-wide cost implications.
The 5mm size jump at this level provides substantial capacity increase - excellent value when shaft size and space permit.
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