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6219 M/C3VL0241 Bearing For DC Motor

Insulated bearings provided by EASIER combat electrical erosion in a wide range of conditions, including high humidity. Sealed protective coatings on the outer or inner rings integrate insulating properties into the bearing. They eliminate premature bearing failures caused by stray electric current in applications including:

• Industrial electric motors
• Traction motors
• Generators

E-mail: sales@xrbearing.com, brandbearings@gmail.com
Skype:brandbearings
Whatsapp: 0086-13280450757
www.xrbearing.com
Availability:
  • 6219 M/C3VL0241
  • EASIER
  • Deep Groove Ball Bearing
  • USD$480

High Precision Insulated Bearing 6219 M/C3VL0241  is Deep Groove Ball Bearing design. its dimension is 95×170×32mm, it has the same dimension and the same design with normal chrome steel 6219 M/C3 bearing. but the most different is 6219-M-C3J20AA bearing with Aluminium Oxide Coating. this insulated can be inner ring coating or outer ring coated. the coating can Electrical Resistance Voltages up to 3000 V DC. This kind of bearing are widely used in high quality demand application like traction motor.


Electrically Insulated Bearing are not only Electrically Insulated deep groove ball Bearing, but also Electrically Insulated Cylindrical Roller Bearing, Electrically Insulated Tapered Roller Bearing, Electrically Thrust Roller Bearing and the other type Normal or Non-Standard Electrically Insulated Rolling Bearings. they are the same dimension, same cage, same elements and the other data with normal chrome steel rolling bearing, just the different coating on the surface of the inner ring or outer ring of the Rolling Bearing.


Coated outer ring

Bearings with an electrically insulating coating on the external surfaces of the outer ring are the most common insulated bearing types. They are:

• Recommended for medium-sized motors using bearing sizes with a bore diameter < 120 mm

• Suitable for all housing types

• Can be applied to bearings with an outside diameter > 80 mm

• Identiied by the sufixes VL0241 and VL0246

 

Designation Principal dimensions Basic load ratings Fatique load limit Speed ratings Weight
Deep groove ball bearing mm mm mm dynamic static
Reference speed Limiting speed kg

d D B C[kN] C0[kN]
[r/min] [r/min]










6314/C3VL0241 70 150 35 111 68 2.75 9500 6300 2.5
6314 M/C3VL0241 70 150 35 111 68 2.75 9500 9000 3
6215/C3VL0241 75 130 25 68.9 49 2.04 10000 6700 1.2
6315/C3VL0241 75 160 37 119 76.5 3 9000 5600 3.1
6315 M/C3VL0241 75 160 37 119 76.5 3 9000 8000 3.7
6216/C3VL0241 80 140 26 72.8 55 2.2 9500 6000 1.4
6316/C3VL0241 80 170 39 130 86.5 3.25 8500 5300 3.6
6316 M/C3VL0241 80 170 39 130 86.5 3.25 8500 7500 4.2
6217/C3VL0241 85 150 28 87.1 64 2.5 9000 5600 1.8
6317/C3VL0241 85 180 41 140 96.5 3.55 8000 5000 4.1
6317 M/C3VL0241 85 180 41 140 96.5 3.55 8000 7500 4.8
6218/C3VL0241 90 160 30 101 73.5 2.8 8500 5300 2.4
6318/C3VL0241 90 190 43 151 108 3.8 7500 4800 5
6318 M/C3VL0241 90 190 43 151 108 3.8 7500 7000 5.8
6219/C3VL0241 95 170 32 114 81.5 3 8000 5000 2.5
6219 M/C3VL0241 95 170 32 114 81.5 3 8000 7500 3
6319/C3VL0241 95 200 45 159 118 4.15 7000 4500 5.7
6319 M/C3VL0241 95 200 45 159 118 4.15 7000 6300 6.5
6220/C3VL0241 100 180 34 127 93 3.35 7500 4800 3.2
6320/C3VL0241 100 215 47 182 140 4.75 6700 4300 7
6320 M/C3VL0241 100 215 47 182 140 4.75 6700 6000 8.1
6222/C3VL0241 110 200 38 151 118 4 6700 4300 4.5
6222 M/C3VL0241 110 200 38 151 118 4 6700 6300 5.1


Features and Benefits of Coated Bearings 6219 M/C3VL0241

Coating of electrically insulated bearing


Current-Insulated Bearings as a Preventive Measure

 

As a rule, it is very difficult to eliminate the causes of bearing voltages that are induced by the motor. Nevertheless, it is possible to avoid damage to the bearing, if the flow of current can either be prevented or at least significantly reduced. Many types of current-insulated rolling bearings are available today for this very purpose. Which components need to be insulated depends on the type of voltage involved:

Induced Voltage along the Shaft

 

In this case, electrical currents flow through each of the two bearings in the same direction. The most likely cause is the converters’ common-mode voltage. This type of a situation might require insulating both bearings. Which type of electrical insulation is to be used depends on the time response of the given voltages. With DC voltage and low-frequency AC voltage, the choice depends on the ohmic resistance of the bearing. With higher-frequency AC voltage (often encountered in converters!), it depends on the capacitive reactance of the bearing. Basically, a current-insulated bearing acts like a resistor and capacitor connected in parallel. To ensure good insulation, the ohmic resistance should be as high as possible, and the capacitance should be as low as possible.



E-mail: sales@xrbearing.com, brandbearings@gmail.com

Skype:brandbearings

Whatsapp: 0086-13280450757

www.xrbearing.com

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