sealed roller bearing 23944-2CS of professional factory

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500 PCS
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Product Description:

TIANHE 2 23944-2CS sealed roller bearing are fitted with a large number of long symmetrical large-diameter rollers, capable of withstanding very heavy loads. Special structures of raceway surface as well as the best quality ensure spherical roller bearings the lowest friction including C and CA-bearing.

Compared with conventional spherical roller bearings, tianhe bearings run cooler. They are able to withstand heavier axial loads, or up to a higher speed.


23944-2CS sealed roller bearing Specification



PV limitOil50N/mm2.m/s


Friction Coeff.0.030.20μ
Speep limitOil5m/s
Thermal conductivity2.41Kcal/
Coeff. Of linear expansion27×10-6per 


Q:What's my consideration when I choose a bearing?

 A:- The type and size of bearing you need.

     - The quality or application you prefer.


Q: What's TIANHE bearing's advantage.

A: - Substantial inventory, unified quality control,save much cost and time for customers.


Q: What's your guarantee on quality problem?

A: - Free to change in 2 month and in your next order,10% value of order can be paid after receiving goods and checking out no quality issues.


Q: Can I be a distributor of TIANHE?

A: Of course you can.


Q:What are the benefits of being a TIANHE distributor?

A:-Special Discount

   -Marketing Protection

   -Priority Delivery than other orders.

   -Point to point technical supports and after sales services.


Q:How can I become a distributor of TIANHE?

A: Contact us immediately for further details by sending us an inquiry.

Packaging & Delivery

Packaging Details:in cartons or as per customer's requirements
Delivery Detail:25-30 days after getting the deposit


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Q:What effect does the sliding bearing have on the top gap?
There must be a gap between the clearances.The fit between the sliding bearing and the shaft is clearance fit. The top gap is normally pressed by lead. The top clearance is 1/1000 or 1/1000 of the axle neck, and five of the gap is 1/2 of the top clearance.
Q:In what circumstances, lubricant viscosity should be smaller?
In low load, high speed and low temperature conditions, choose low viscosity lubricating oil. In heavy load, low speed and high temperature conditions, the choice of high viscosity lubricating oil or extreme pressure and anti-wear additives lubricants.Lubricating oil is the main lubricant. The main physical performance index of lubricating oil is viscosity, which indicates the internal friction properties of liquid flow, and the greater the viscosity, the worse its flowability. Another physical property of lubricating oil is oiliness, which represents the adsorption ability of lubricating oil on the metal surface. The greater the oil, the stronger the metal adsorption capacity, the more likely the oil film to form. The selection of lubricating oil should take into account the bearing capacity, journal speed, lubrication mode, surface roughness of sliding bearing, and other factors.General principles are as follows:1, in the light load conditions, in order to reduce friction power consumption, low viscosity lubricants can be chosen;2. under heavy load or impact loading conditions, oily and big viscosity lubricating oil should be used to form a stable lubricating film;3. static or dynamic sliding bearings can choose a small viscosity of the lubricating oil; 4. rough surface or without running surface should choose high viscosity lubricants.
Q:The oil release ring is in the mounting position of the sliding bearing
The axial force is required to be transmitted to the base, and the axis is rotating or the axial forces that are transmitted vary.
Q:Why does the sliding bearing use clearance fit?
Sliding bearing is a sliding, if the excessive interference or with great friction, will hinder the movement of cars bearing, and the wear is serious, is not conducive to the long-term use of parts.
Q:What's the difference between rolling and plain bearings? What is Bush? What do you mean by scraping the Bush? How to operate?
Secondly, the motion mode is different. The rolling motion of the rolling bearing is rolling; the movement of the sliding bearing is sliding, so the friction situation is completely different.The Bush is the part of the contact between the sliding bearing and the shaft. It is very smooth. It is usually made of wear-resistant materials such as bronze, antifriction alloy and so on. It can be made of wood, plastic or rubber under special circumstances. Also called the "Bush", is in the shape of half cylinder shaped tile.When the sliding bearing is working, a thin oil film is required between the Bush and the rotating shaft to lubricate the sliding bearing.
Q:What are the ways to flush bearings?
The test, can be used to clean the remaining oil scraping feeler, apply the thumb, index finger back and forth slowly rubbing fingers if there is research, the rustling sound, it indicates that the bearing is not clean, should wash again. The bearing in hand, pinch the inner ring, the outer ring (toggle horizontal rotating large bearings can be placed in the assembly stage, the inner pad, the outer ring is suspended, pressing within the circle, rotating outer ring), with flexible rotation, no block, no beating for qualified. After cleaning the bearings, fill in the lubricant, it should be placed on the assembly table, the next pad with a net cloth or paper pad, covered with plastic cloth, pending assembly, not allowed on the ground or box. When moving bearings, it is not allowed to use the hand directly, Dafanb gloves or net cloth should be used to pack the bearings before they are taken. Otherwise, because of the sweat and moisture in the hands, it is easy to cause the bearings to be rusted. On both sides of the bearing with shields or seals, and bearings coated with anti rust, lubrication and oil, because at the time of manufacture have been injected into the grease, so do not wash before installation, for example, 51708ZHS - 12, and - 12 type tractor and redguards Dongfanghong 20 tractor clutch (original code 688808) bearing.
Q:How is the axial clearance of plain bearings large?
Adjust the ring gasket by adjusting the outer bolster of the tile.
Q:What is the sliding bearing grease cup
Bush is a half, half bearing is oil hole, and then an interlinked, a very simple structure.
Q:How do I move the plain bearings?
Since it is sliding bearings, how can it still turn it? It is sliding.
Q:What are the conditions for forming sliding bearings and dynamic oil film lubrication?
Conditions for lubrication of hydrodynamic oil film for sliding bearings:1, must have an oil wedge to form a dynamic pressure, to ensure equal access to oil;2, the thrust plate relative motion to form convergent wedge on the pad;3, the viscosity of the oil is right, the amount of oil appropriate.

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