NTN Deep groove ball bearing 6018DDU

To NTN bearings, the seals are very important. This kind of Ball Bearing is intended for the searing of openings between a rotating and a stationary component or between two components in relative motion. The main functions of seals are following:

- to exclude contaminants.

- To separate gases or fluids.

- To retain lubricant.

- To withstand differences in pressure.

Even under unfavourable operating conditions or in critical applications, the seals should also work very well with a minimum of wear and friction. In order to meet different demands, seals are produced in different materials and in many material in NTN factory. Different combinations for each of design and materical have different properties.

When to choose the NTN bearing with the seals. We must to consider some factors. For example:

- The type of lubrication.

- The sliding velocity at the sealing surface.

- Wheater the seals are mounted by horizontally or vertically.

- Deviation or misalignment from coaxiality of the shaft.

In additon to this, the seal environment must be considered.

- Mechanical or chemical factors

- Thermal conditions

Just like the NTN deep groove ball bearings 6018DDU(sealed type bearings)

Following is the main data of the bearings NTN deep groove ball bearings 6018DDU.

D: 90mm

D: 125mm

B: 18mm

M: 0.585kg

Basic dynamic load rating: 33000N

Basic static load rating: 31500N

Grease lubrication speed: 2800(r/min)

Oil lubrication speed: 6000(r/min)

In addition to NTN brand, we also provide other brands:

Meanwhile, we can provide other products in our stock:

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