KOYO Bearings

KOYO bearings 23156RK

Model:23156RK


Dimensions(mm):280x460x146


Email:skfnskoyo@gmail.com


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Sample:Free Samples Is Available


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Description

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.

20rhr-koyo

Of course. Here is a detailed parameter introduction for the KOYO 23156RK bearing.

Quick Summary

The KOYO 23156RK is a Spherical Roller Bearing with a tapered bore designed for mounting using an adapter sleeve. The "RK" suffix is a key identifier of this mounting style. It is engineered to handle extremely heavy radial loads and moderate axial loads while compensating for shaft misalignment, making it a fundamental component in heavy industrial machinery.

The core difference from the previous examples is the "RK" suffix set, which indicates a specific, and slightly older, internal design and cage material compared to the "RHA" and "RHAK" variants.


Detailed Parameter Breakdown

The core dimensions (bore, OD, width) are identical to other 23156 bearings, as they are defined by the basic number. The differences are internal.

ParameterValueDescription
Bearing Type
Spherical Roller Bearing with Tapered Bore
Shaft Diameter (d)280 mmThis is the nominal bore size. The actual shaft size will be smaller due to the adapter sleeve.
Outside Diameter (D)460 mmThe outer diameter of the bearing.
Width (B)146 mmThe total width of the bearing.
Dynamic Load Rating (C)~1,900 kNThe load capacity for a lifetime of 1 million revolutions. Typically slightly lower than the RHA design.
Static Load Rating (C₀)~3,500 kNThe maximum stationary load. Typically slightly lower than the RHA design.
Grease Limit Speed~800 rpmMaximum rotational speed recommended for grease lubrication.
Oil Limit Speed~1,000 rpmMaximum rotational speed recommended for oil lubrication.
Adapter SleeveH 2356The designated adapter sleeve required for mounting on a straight shaft.
Shaft Size Range (with sleeve)~260 - 270 mmThe actual diameter of the straight shaft to be machined (must be confirmed via H 2356 sleeve tables).

Note: Load and speed ratings are approximate and based on a typical "RK" designation. Always consult the specific product catalog for the exact values, as they can vary between manufacturing periods.


Suffix Code Explanation (RK)

This is the most important part for understanding this specific bearing. The suffixes have evolved over time.

  • RTapered Bore. This indicates the inner ring has a tapered bore (usually a 1:12 taper) for mounting with an adapter or withdrawal sleeve.

  • KAdapter Sleeve Mounting. This signifies the bearing is supplied for use with an adapter sleeve. It often implies the bearing comes as a set, including the locking nut and locking washer.

Critical Interpretation of the Missing Suffixes:
The absence of an "H" or "A" in the suffix code is highly significant.

  • No 'H': This strongly suggests the cage is not a hardened steel cage. It is most likely a pressed steel cage or, in older designs, potentially a machined brass cage. This makes the bearing less suitable for extremely high-vibration or shock-load applications compared to an "H" type bearing.

  • No 'A': This indicates the bearing likely features an older, symmetric roller design. While still very robust, symmetric rollers generally have a lower load capacity and higher friction than the modern asymmetric ("A" suffix) design.

In summary: 23156RK = A robust, standard-duty spherical roller bearing with a tapered bore and adapter sleeve, likely featuring a pressed steel cage and symmetric rollers.

Tags : koyo IUA Bearing Co.,Limited. has been engaged in bearing industry for many years, we provide a wide selections of brands

including KOYO bearing, KOYO bearing, FAG bearing, NTN bearings, SKF bearings, deep groove ball

bearings, cylindrical roller bearings, tapered roller bearings, self-aligning ball bearings,thrust ball bearings, rolling mill

bearings, spherical roller thrust bearings, spherical bearings, adapter sleeves, withdrawal sleeves, lock nut, lock washer,


locking device, etc.


IUA We can provide bearing and non-standard bearings, linear bearings, automotive bearings, large bearings, railway bearings,


spherical plain bearings, high temperature, super-precision bearings, as well as some rare types customized to your need.


Our bearings are exported to countries and regions in Europe (the UK, France, Italy, Germany), North America (USA, Canda),


Middle East and Southeast Asia.

IUA Our goal is to exceed our customers’ expectation in providing quality products and continue to improve the services we

provide on a timely manner.

Please view the products at our website that we can supply. You can also contact our sales representative to request a

price quotation on the products that you are looking for that may not been shown on our website.


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Jinan IUA Bearing Co., LTD

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