RMS 18

RMS Series Single Row Deep Groove Ball Bearings

RMS 18 RMS Series Single Row Deep Groove Ball Bearings
RMS 18 RMS Series Single Row Deep Groove Ball Bearings

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Part No.
Part No. RMS 18

Basic Information

Bearing type Ball
System of measurement Inch
Construction Single Row
Weight 1.68 kg
Tolerance class P6
Seal type Open
For load direction Radial

Main Dimensions

Bore diameter 2.25"
Bore diameter tolerance -0.00031" to 0.00019"
Outside diameter 5"
Outside diameter tolerance -0.00129" to -0.00078"
Width 1.25"
Width tolerance -0.005" to 0"

Performance

Temperature range -30° to 120 °C
Radial dynamic load rating 18412 lbf
Radial static load rating 11690 lbf
Limiting speed 10 X 1000 rpm
Lubrication None
Radial internal clearance CN

Materials

Ring material Chrome Steel
Ball material Chrome Steel
Cage material Stainless Steel

Environment & Compliance

REACH Compliant
ROHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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RMS 18 Bearing Product Overview & Core Advantages

The RMS 18 is a precision single row deep groove ball bearing engineered for demanding industrial applications. Manufactured to P6 tolerance class, it delivers exceptional running accuracy and dimensional stability. Its robust radial load capacity of 18,412 lbf makes it ideal for applications requiring high reliability and long service life. The open design, combined with a stainless steel cage, facilitates high-speed operation up to 10,000 rpm, while the standard CN radial internal clearance ensures optimal performance under normal operating conditions.

RMS 18 Bearing Model Code Explained, Specifications & Naming Convention

Code Segment Technical Meaning
RMS 18 Standard model designation for a specific inch-series, single row deep groove ball bearing.
Open (Seal Type) No integral seals or shields. Allows for high-speed operation and is suitable for applications where external sealing is provided or where frequent re-lubrication is part of the maintenance schedule.
P6 (Tolerance Class) Indicates a precision tolerance class with tighter dimensional and running accuracy tolerances than standard bearings, contributing to superior performance.
CN (Radial Clearance) Specifies the standard normal radial internal clearance group, suitable for most common operating conditions and fits.

RMS 18 Bearing Structural Features & Performance Benefits

  • High Precision & Rigidity: Manufactured to P6 tolerance class with strict control over bore, outside diameter, and width tolerances. This ensures precise shaft positioning, reduced vibration, and high system rigidity.
  • Optimized Load Capacity: The deep groove raceway and high-quality chrome steel construction enable high radial dynamic and static load ratings, making it capable of handling significant radial forces.
  • High-Speed Capability: The stainless steel cage provides excellent strength and low friction at high rotational speeds, supporting the bearing's limiting speed of 10,000 rpm.
  • Robust Material Selection: Rings and balls made from chrome steel (AISI 52100 equivalent) offer high hardness and wear resistance. The stainless steel cage enhances corrosion resistance and durability.
  • Broad Operating Range: A functional temperature range from -30°C to 120°C allows for use in diverse environments.

RMS 18 Bearing Typical Application Areas

The RMS 18 precision ball bearing is ideally suited for a wide range of industrial machinery and equipment, including:

  • Electric Motors and Generators
  • Industrial Gearboxes and Transmissions
  • Material Handling Conveyors
  • Pumps and Compressors
  • Agricultural and Construction Machinery
  • Precision Spindles and Machine Tool Accessories
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