51418 M
51300 & 51400 Series Heavy Duty Thrust Ball Bearings
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Part No.
Part No.
51418 M
Basic Information
Bearing type
Ball
System of measurement
Metric
Weight
11 kg
Seal type
Open
For load direction
Thrust
Main Dimensions
Bore diameter
90 mm
Bore diameter tolerance
-0.02mm to 0
Outside diameter
190 mm
Outside diameter tolerance
-0.03mm to 0
Width
77 mm
Width tolerance
+0.025mm to -0.3mm
Chamfer dimension
2.1 mm
Ball & Washer Dimensions
Housing washer inner diameter
93 mm
Shaft washer outer diameter
187 mm
Performance
Temperature range
-30° to 110 °C
Axial dynamic load rating
69075 lbf
Axial static load rating
183375 lbf
Limiting speed
1.5 X 1000 rpm
Materials
Ring material
52100 Chrome Steel
Ball material
52100 Chrome Steel
Cage material
Stainless Steel
Environment & Compliance
REACH
Compliant
ROHS
Compliant
Technical Drawings
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In Stock
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51418 M Bearing Product Overview & Core Advantages
The 51418 M is a metric thrust ball bearing engineered for demanding applications requiring high axial load capacity and precision operation. This bearing excels in handling heavy thrust loads in a single direction while maintaining stable performance. Its design features a stainless steel cage for enhanced durability and is manufactured from 52100 Chrome Steel for superior strength and wear resistance. The 51418 M is ideal for high-reliability scenarios where precise axial positioning and robust load support are critical.
51418 M Bearing Model Code Explained, Specifications & Naming Convention
| Code Segment | Technical Meaning |
|---|---|
| 51418 | Basic bearing designation, defining the core dimensions (90mm bore, 190mm OD). |
| M | Indicates the bearing is manufactured from copper-alloy machined cage. Note: In this specific model, the cage material is Stainless Steel. The "M" designation can sometimes refer to a specific cage type or internal design variation from the standard. |
51418 M Bearing Structural Features & Performance Benefits
- High Axial Rigidity: The dedicated thrust design provides exceptional stiffness against axial forces, ensuring minimal deflection under heavy loads.
- Superior Load Capacity: Engineered to handle significant axial dynamic load ratings of 69,075 lbf and axial static load ratings of 183,375 lbf, making it suitable for the most demanding thrust applications.
- Optimized Material Selection: Rings and balls made from 52100 Chrome Steel offer excellent hardness and fatigue life. The stainless steel cage provides high strength and corrosion resistance, contributing to the bearing's overall longevity.
- Precision Tolerances: Tight dimensional tolerances on the bore, outside diameter, and width guarantee precise fitment and reliable performance in high-accuracy assemblies.
51418 M Bearing Typical Application Areas
This thrust ball bearing is commonly specified in heavy-duty industrial equipment, including:
- Vertical Pumps and Compressors
- Heavy-Duty Machine Tool Spindles (for axial support)
- Crane Hooks and Lifting Systems
- Automotive Steering Systems
- Industrial Gearboxes (for thrust load management)
