Special insulated cylindrical roller bearings for motors NU311 NU312EM1F1 J20B C4
Key attributes
Industry-specific attributes
Applicable Industries
Building Material Shops, Manufacturing Plant, Machinery Repair Shops, Retail, Construction works , Energy & Mining
Bore Size
59.9999 - 60 mm
Precision Rating
P0 P6 P5 P4 P2
Number of Row
Single row
Other attributes
Place of Origin
Shandong, China
Type
BALL
Structure
Deep Groove
Model Number
NU312M
Seals Type
OPEN ZZ 2RS RS
Material
Chrome Steel Gcr15 and insulating coating
Precision Rating
P6 P5 P4
Package
Standard
Size
60X130X31mm
Feature
Electrically Insulated;Long work-time; C3 Clearance
Standard
ISO3547
Heat Stabilization
Temperatures up to 120 °C
Service
OEM Customized Services
Electrical Resistance
Max. Operating Voltage 1.000v DC
Cage material
Brass Cage
Special insulated cylindrical roller bearings for motors NU311 NU312EM1F1 J20B C4
In harsh environments, the passage of electric current can lead to damage to the raceways and rolling elements in the bearing unit and to deterioration of the lubricant. This can also lead to unexpected failures of the motor or generator. Therefore, electrically insulated bearings with an insulating layer are often used in applications that may be damaged by electrical corrosion, such as: Industrial motors; Wheel sets and traction motors (rail vehicles); Power transmission; Generators (wind power generation); Taking into account the costs of repair work and machine downtime and production losses due to bearing failure caused by the passage of electric current, it is recommended to select electrically insulated bearings during the planning phase. As a result, you will benefit from reduced maintenance costs and increased machine availability. The advantages of electrically insulated bearings are as follows: 1.Prevents the passage of electric current; 2.Prevents downtime and production losses; 3.Outer rings coated with aluminum oxide; 4.Interchangeable with standard bearings (same dimensions and performance).
Model No | d(mm) | D(mm) | Width(mm) |
NU310ECM/C3VL0241 VL2071 | 50 | 110 | 27 |
NU311ECM/C3VL0241 VL2071 | 55 | 120 | 29 |
NU312ECM/C3VL0241 VL2071 | 60 | 130 | 31 |
NU313ECM/C3VL0241 VL2071 | 65 | 140 | 33 |
NU314ECM/C3VL0241 VL2071 | 70 | 150 | 35 |
NU315ECM/C3VL0241 VL2071 | 75 | 160 | 37 |
NU316ECM/C3VL0241 VL2071 | 80 | 170 | 39 |
NU317ECM/C3VL0241 VL2071 | 85 | 180 | 41 |
NU318ECM/C3VL0241 VL2071 | 90 | 190 | 43 |
NU319ECM/C3VL0241 VL2071 | 95 | 200 | 45 |
NU320ECM/C3VL0241 VL2071 | 100 | 215 | 47 |
NU322ECM/C3VL0241 VL2071 | 110 | 240 | 50 |
NU324ECM/C3VL0241 VL2071 | 120 | 260 | 55 |
NU326ECM/C3VL0241 VL2071 | 130 | 280 | 58 |
NU328ECM/C3VL0241 VL2071 | 140 | 300 | 62 |
NU330ECM/C3VL0241 VL2071 | 150 | 320 | 65 |
NU210ECM/C3VL0241 VL2071 | 50 | 90 | 20 |
NU211ECM/C3VL0241 VL2071 | 55 | 100 | 21 |
NU212ECM/C3VL0241 VL2071 | 60 | 110 | 22 |
NU213ECM/C3VL0241 VL2071 | 65 | 120 | 23 |
NU214ECM/C3VL0241 VL2071 | 70 | 125 | 24 |
NU215ECM/C3VL0241 VL2071 | 75 | 130 | 25 |
NU216ECM/C3VL0241 VL2071 | 80 | 140 | 26 |
NU217ECM/C3VL0241 VL2071 | 85 | 150 | 28 |
NU218ECM/C3VL0241 VL2071 | 90 | 160 | 30 |
NU219ECM/C3VL0241 VL2071 | 95 | 170 | 32 |
NU220ECM/C3VL0241 VL2071 | 100 | 180 | 34 |
NU222ECM/C3VL0241 VL2071 | 110 | 200 | 38 |
NU224ECM/C3VL0241 VL2071 | 120 | 215 | 40 |
NU226ECM/C3VL0241 VL2071 | 130 | 230 | 40 |
NU228ECM/C3VL0241 VL2071 | 140 | 250 | 42 |
NU230ECM/C3VL0241 VL2071 | 150 | 270 | 45 |
NU1011ECM/C3VL0241 VL2071 | 55 | 90 | 18 |
NU1012ECM/C3VL0241 VL2071 | 60 | 95 | 18 |
NU1013ECM/C3VL0241 VL2071 | 65 | 100 | 18 |
NU1014ECM/C3VL0241 VL2071 | 70 | 110 | 20 |
NU1015ECM/C3VL0241 VL2071 | 75 | 115 | 20 |
NU1016ECM/C3VL0241 VL2071 | 80 | 125 | 22 |
NU1017ECM/C3VL0241 VL2071 | 85 | 130 | 22 |
NU1018ECM/C3VL0241 VL2071 | 90 | 140 | 24 |
NU1019ECM/C3VL0241 VL2071 | 95 | 145 | 24 |
NU1020ECM/C3VL0241 VL2071 | 100 | 150 | 24 |
NU1022ECM/C3VL0241 VL2071 | 110 | 170 | 28 |
NU1024ECM/C3VL0241 VL2071 | 120 | 180 | 28 |
NU1026ECM/C3VL0241 VL2071 | 130 | 200 | 33 |
NU1028ECM/C3VL0241 VL2071 | 140 | 210 | 33 |
NU1030ECM/C3VL0241 VL2071 | 150 | 225 | 35 |
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