RealiSlim mm Metric Thin Section Bearings

Attributes of RealiSlim mm Metric Thin Section Bearings

Types: Angular Contact(Type-A), Four Point Contact(Type-X), Radial Contact(Type-C)

In applications with high axial loads, Type-A RealiSlim mm Metric Thin Section Bearings, that is, angular contact thin section ball bearings with metric size, should be used. These bearings also work well in radial or combined radial-thrust applications. The Type-A RealiSlim mm Metric Thin Section Bearings should never be used alone to support moment loads or reversing axial loading. Two Type-A metric thin bearings are often used as a duplex pair.

The Type-X RealiSlim mm Metric Thin Section Bearings, that is, the 4-point contact thin wall ball bearings with metric size, are ideal for moment loading. Type-X metric thin wall bearings are designed with gothic arch raceways creating 4 contact points between the balls and the raceways. This design is excellent for moment loading and reversing axial loading. The Type-X RealiSlim mm Metric Thin Section Bearings can be used for other light loading conditions, but is not recommended in place of the Type-C or Type-A metric thin section ball bearings for pure radial loads.

The Type-C RealiSlim mm Metric Thin Section Bearings, that is, the radial contact thin section bearings with metric size, is designed with deep ball grooves to withstand high loads. Although these bearings are used primarily in applications with radial loads, they can withstand moderate axial loads, reversing axial loads, and moment loads.

Materials: Chrome Steel, Stainless Steel, Ceramic Hybrid

The standard RealiSlim mm Metric Thin Section Bearings shown in the catalog have SAE 52100 steel rings and balls. RealiSlim mm Metric Thin Section Bearings can be manufactured from other specialty bearing steels to provide corrosion resistance, high temperature capability, alternative load capacity or chemical compatibility. 

Rings

LILY has manufactured RealiSlim mm Metric Thin Section Bearings from SAE 440C stainless steel to provide corrosion resistance. As an alternative to stainless steel rings, the entire surface of the rings can be plated with nodular thin dense chrome (TDC). This plating, which meets AMS 2438, achieves a molecular bond that will not flake, peel or separate from the base material. The TDC plate has a hardness of HRC 70 - 78 and can withstand temperatures well beyond the range of the base material.

Some special RealiSlim mm Metric Thin Section Bearings have been manufactured from Aluminum, 300 Series Stainless Steel, 17-4 Stainless Steel, and other metals. 

Balls

Some special ball materials available include 440C Stainless Steel, 300 Series Stainless Steel, Silicon Nitride and M-50 Steel.

Precision: ABEC-1 to ABEC-7

RealiSlim mm Metric Thin Section Bearings are available in four precision grades. ABEC grades 1, 3, 5 and 7 respectively. The tolerances for the bearing bores, outer diameters and radial plays are shown in the products tables.

Sizing

RealiSlim mm Metric Thin Section Bearings have cross sections of 8 mm, 13 mm, and 20 mm. Their bore diameters range from 20 mm to 360 mm.

Seal Type: Open, Sealed

Open type RealiSlim mm Metric Thin Section Bearings are usually oil lubricated, with low starting torque and flexible rotation.

The seal of RealiSlim mm Metric Thin Section Bearings consists of nitrile/BUNA-N rubber bonded to a metal washer. High temperature PTFE seals (up to 250°C) or Viton seals (up to 230°C) are available on some sizes. The inner lip of the seal rubs against the bearing inner ring to provide an effective seal against smaller particles such as dust and moisture while preventing lubricant leakage. Contact seals produce much higher frictional torque levels than open bearings and reduce the maximum speed of a bearing. Below -40°C nitrile rubber and viton will stiffen and provide a less effective seal so PTFE seals or metal shields should be considered for very low temperatures.

Construction: constant section

The cross-section remains constant even in the case of larger shaft and housing bore diameters, therefore the RealiSlim mm Metric Thin Section Bearings are also described as constant section (CS) bearings. There are three configurations of RealiSlim mm Metric Thin Section Bearings. They are angular contact RealiSlim mm Metric Thin Section Bearings (Type A), Conrad assembled deep groove radial RealiSlim mm Metric Thin Section Bearings (Type C), and four-point contact radial RealiSlim mm Metric Thin Section Bearings (Type X).

System of Measurement 

The measurement system of RealiSlim mm Metric Thin Section Bearings in the following catalog is the metric system.

Cages

Cage materials of RealiSlim mm Metric Thin Section Bearings cover brass, nylon, phenolic and stainless steel.

Lubricants

Many different lubricants are available from LILY Bearing for special applications. Greases which are designed specifically for high speed, low torque, water resistance, high temperature, oscillatory motion and food machinery can be provided. Additional lubricants, such as dry film, are suitable for use in vacuums and space applications. For more details, please refer to the website of Ball Bearing Lubrication.

Temperatures

RealiSlim mm Metric Thin Section Bearings with Normal chrome steel can be used at constant temperatures of 120°C or intermittent temperatures of up to 150°C. Above these temperatures, the load capacity of the chrome steel will be reduced. By means of special heat treatment processes and the addition of high temperature grease, we can also customize RealiSlim mm Metric Thin Section Bearings for high temperature resistance.

Internal Clearance

Internal clearance is the play between outer ring, inner ring and rolling element of bearings. Generally, the amount of up and down movement of the outer ring with respect to the fixed inner ring is called the radial internal clearance and its right and left movement the axial internal clearance. Bearing internal clearance in operation is an important factor that has a significant influence on other factors such as noise, vibration, heat and fatigue life.

Typical applications

RealiSlim mm Metric Thin Section Bearings are widely used in some typical applications as follows: 

Precision robotic joints                                                                                             Semiconductor equipment and measuring systems

Radar and microwave equipment                                                                              Solar array panels

Guidance systems                                                                                                   Medical Imaging equipment

Machine Tools                                                                                                        Textile Machinery

Material Handling                                                                                                    Satellite Systems

Antenna Equipment                                                                                                 Packaging Machinery

Aerospace                                                                                                              Scanning Equipment

Optical Equipment                                                                                                  Rotary Joints

Manufacturing Equipment                                                                                        Military Turrets

Slip Ring Assemblies                                                                                               Harmonic Drives

Speed Reducers

Advantages & Buying and Using experience

Have been specializing in RealiSlim mm Metric Thin Section Bearings for 22 years，our company is able to effectively deal with all kinds of difficulties encountered by our clients in bearing applications. In addition, our company has thousands of bearings in stock and can provide bearings which are rare in the market. We have rich experience in international trade, and most of our products can be shipped on the same day as the order is received. It is worth mentioning that we have much experience in serving US companies. According to statistics, 60% of our clients are from North America. For instance, Tesla, Google, NASA and other international famous companies are our loyal clients. They purchased our bearings and spoke highly of them. Furthermore, our bearings are widely used in some world-class products. A case in point, our bearings have been used in the center console of Mercedes-Benz with s-series.

Our company is not only a seller of bearings, but also an expert in bearing solutions. We have a strong team of skilled engineers and a large service team, the mission of which is "client-oriented". Our experts have rich experience in serving end-users and well-established industry solutions, and can provide customized bearing solutions according to your actual working conditions.

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