KOYO bearings 23178K
2318K This high-quality koyo Self-aligning ball bearings is designed for high load capacity and offers reliable performance in various applications.
Read MoreModel:2318K
Dimensions(mm): 90x190x64
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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:
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.
Here are the standard dimensions for a 2318K bearing:
Dimension | Value (mm) | Value (inches) |
---|---|---|
Bore Diameter (d) | 90 mm (Tapered) | 3.5433 in |
Outer Diameter (D) | 190 mm | 7.4803 in |
Width (B) | 64 mm | 2.5197 in |
Taper | 1:12 | |
Weight | ~ 6.1 kg | ~ 13.4 lbs |
Note: Always refer to the official KOYO catalog for precise dimensions, load ratings, and tolerances.
This highlights the importance of the number of digits:
Feature | KOYO 2318K | KOYO 23188RHAK |
---|---|---|
Type | Spherical Roller Bearing | Tapered Roller Bearing |
Bore Size | 90 mm | 440 mm |
Key Capability | Handles misalignment, high radial loads | Handles combined radial/axial loads, thrust loads |
Suffix "K" | Tapered Bore | Tapered Bore |
Size / Application | Medium-duty (e.g., industrial pumps, conveyors) | Extreme heavy-duty (e.g., mining crushers, large excavators) |
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
Cross-Reference: This bearing is interchangeable with other major brands like SKF 2318K, NTN 2318K, or Timken 2318K (assuming the same "K" suffix).
Search Online: Use the full part number "2318K". Remember to also search for the correct adapter sleeve (e.g., an H-318 series sleeve).
Consult a Catalog: Look up the part number in the official KOYO Spherical Roller Bearing catalog.
2318K This high-quality koyo Self-aligning ball bearings is designed for high load capacity and offers reliable performance in various applications.
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