KOYO Bearings

KOYO bearings 2318K

Model:2318K


Dimensions(mm): 90x190x64


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Email:  skfnskoyo@gmail.com


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Description

10k-koyo
Japan’s koyo  bearing
 company produces tens of thousands of high-precision and high-quality Koyo bearing series products), providing information about aerospace technology, computer components, motors, high-speed trains, MRT trains, industrial machinery, CNC lathes, high-precision machining machines, automobile, locomotive industry, steel industry And other important components to make the best choice.

Of course. The code KOYO 2318K refers to a specific type of bearing, but it's important to understand that it is fundamentally different from the "23188" series bearings we've been discussing.

The key difference is the number of digits: 2318 is a medium-duty bearing, while 23188 is a much larger, heavy-duty bearing.

Here is the detailed breakdown for the KOYO 2318K:

KOYO Bearing 2318K

  • Manufacturer: KOYO (JTEKT Corporation).

  • Type: Spherical Roller Bearing. This is a critical distinction. Unlike the tapered roller bearings (23188 series), spherical roller bearings are designed to handle very high radial loads and moderate axial loads in both directions. They also compensate for misalignment (shaft deflections) thanks to their spherical outer ring raceway.

  • Series: The prefix 2318 is the dimension series.

    • The "2" indicates the width series (medium).

    • The "3" indicates the diameter series (medium).

    • The "18" specifies the bore size.

  • Bore Diameter: The bore size for this bearing is 90 mm. This is calculated directly from the bore code "18" multiplied by 5 (18 * 5 = 90mm).

  • Suffix: The suffix K has a specific meaning for spherical roller bearings:

    • K: This indicates that the bearing has a tapered bore. The bore is ground to a standard taper of 1:12. This design is for mounting onto a straight shaft using an adapter or withdrawal sleeve.


Key Specifications (Approximate Dimensions)

Here are the standard dimensions for a 2318K bearing:

DimensionValue (mm)Value (inches)
Bore Diameter (d)90 mm (Tapered)3.5433 in
Outer Diameter (D)190 mm7.4803 in
Width (B)64 mm2.5197 in
Taper1:12
Weight~ 6.1 kg~ 13.4 lbs

Note: Always refer to the official KOYO catalog for precise dimensions, load ratings, and tolerances.


Comparison: 2318K vs. 23188 Series

This highlights the importance of the number of digits:

FeatureKOYO 2318KKOYO 23188RHAK
TypeSpherical Roller BearingTapered Roller Bearing
Bore Size90 mm440 mm
Key CapabilityHandles misalignment, high radial loadsHandles combined radial/axial loads, thrust loads
Suffix "K"Tapered BoreTapered Bore
Size / ApplicationMedium-duty (e.g., industrial pumps, conveyors)Extreme heavy-duty (e.g., mining crushers, large excavators)

Common Applications for 2318K

Due to its misalignment capability and robust design, the 2318K is used in:

  • Industrial Gearboxes

  • Pumps and Compressors

  • Material Handling Conveyors

  • Fans and Blowers

  • Paper Mill Machinery

How to Find More Information or a Replacement

  1. Cross-Reference: This bearing is interchangeable with other major brands like SKF 2318KNTN 2318K, or Timken 2318K (assuming the same "K" suffix).

  2. Search Online: Use the full part number "2318K". Remember to also search for the correct adapter sleeve (e.g., an H-318 series sleeve).

  3. Consult a Catalog: Look up the part number in the official KOYO Spherical Roller Bearing catalog.



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Jinan IUA Bearing Co., LTD

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