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SKF EAZ Series Fixed Induction Heaters
SKF EAZ Series Fixed Induction Heaters
 

Fixed induction heater ~ Safe and easy bearing removal in just 3 minutes

Fixed induction heaters EAZ series

The fixed size EAZ induction heaters are designed to safely and easily dismount cylindrical roller bearing inner rings, which are often mounted with a very tight interference fit. Heating the inner ring rapidly loosens the fit, as the shaft remains cool, enabling the ring to be removed without causing damage to the shaft or inner ring. With easy-to-use fixed size EAZ induction heaters, three minutes are usually enough time to professionally dismount cylindrical roller bearing inner rings or similar components.


  • Control cabinets from SKF provide the necessary power to run fixed size EAZ heaters and are available with various voltages to operate EAZ heaters in almost any country. Special versions of the control cabinets are available that enable up to three EAZ heaters to be used simultaneously.

  • In light section mills, rod wire mills or railway applications, EAZ heaters can often dismount cylindrical roller bearing inner rings with one or more rows of rollers or multiple inner rings at the same time.

  • EAZ induction heaters can also be used to dismount non-bearing elements like sleeves or rings.
Cylindrical roller bearings are essential machine components for applications in steel, railway and other industries. In many cases cylindrical roller bearings experience harsh operating conditions and need to be replaced frequently. Fixed size EAZ heaters and corresponding control cabinets are one SKF dismounting solution that supports fast, easy and safe dismounting of cylindrical roller bearing inner rings and similar components.

Features:
  • Reduced time to remove bearings
  • Only one person is required
  • Increased production time
  • Available in different voltage versions
  • Bearings can be reused

Fixed induction heaters EAZ series

Examples of EAZ heater designations DesignationInner ring dimension (mm) FBdinterference fit EAZ F179179168145p6 EAZ F180180130160p6 EAZ F202202168180p6 EAZ F222-1222170200p6 EAZ F222222200200p6 EAZ F226226192200p6 EAZ F260260206230r6 EAZ F312312220280r6 EAZ F332332300300r6 EAZ F364364240320p6 Please, add corresponding F dimension as a suffix to the designation when ordering (e.g. EAZ F312MV).
Voltage classification LVLow voltage190 to 230 V MVMedium voltage400 to 480 V HVHigh voltage500 to 575 V HVCHigh voltage, CSA ready575 V Add corresponding class as a suffix to the designation when ordering (e.g. EAZ F312MV).
Control cabinet versions SS1x fixed EAZmax. 250 A SSD2x fixed EAZmax. 350 A SST3x fixed EAZ Add corresponding cabinet version to the designation when ordering (e.g. SSD C350B).

Fixed size EAZ heaters are customised SKF Induction Heaters for dismounting cylindrical roller bearing inner rings. Please contact SKF to assist you in finding an EAZ heater that suits your application. EAZ heaters are supplied without a control cabinet. SKF control cabinets are required to operate the fixed size EAZ heater and can be ordered separately.



Specifications :

Control cabinets

  • SS 250A - 230V, 50Hz, 250A
  • SS 250B - 400V, 50Hz , 250A
  • SS 250C - 460V, 60Hz, 250A
  • SS 350A - 230V, 50Hz, 350A
  • SS 350B - 400V, 50Hz, 350A
  • SS 350C - 460V, 60Hz, 350A

A special control cabinet suitable for handling two heaters at the same time is also available.

  • SSD 350A - 230V, 50Hz, 250A (2x)
  • SSD 350B - 400V, 50Hz, 250A (2x)
  • SSD 350C - 460V, 60Hz, 250A (2x)

Note: Control cabinet is to be ordered separately

Technical Data

SKF EAZ Series Fixed Induction Heaters

Heater
 desig-
nation		 Voltage
class		 Bearing
designation		 Coil
Current
con-
sumption		 Connecting cable Control
cabinet		 Dimen-
sions
ring		 Dimensions
heater
d B F G C D A
- - - A - - mm mm
EAZ 166 LV
MV
HV		 314625 170
100
75		 A07 RN - F 3 x 25
A07 RN - F 3 x 16
A07 RN - F 3 x 16		 SS 250 145 p6 155 166 169 350 370 176
EAZ 169 LV
MV
HV		 313924 A 170
100
75		 A07 RN - F 3 x 25
A07 RN - F 3 x 16
A07 RN - F 3 x 16		 SS 250 145 p6 156 169 172 355 378 176
EAZ 174 LV
MV
HV		 313891 A 165
95
75		 A07 RN - F 3 x 25
A07 RN - F 3 x 16
A07 RN - F 3 x 16		 SS 250 150 p6 156 174 177 360 388 176
EAZ 179 LV
MV
HV		 315189 A 180
105
80		 A07 RN - F 3 x 35
A07 RN - F 3 x 16
A07 RN - F 3 x 16		 SS 250 160 p6 168 179 182 355 378 184
EAZ 180 LV
MV
HV		 314190 150
85
65		 A07 RN - F 3 x 25
A07 RN - F 3 x 16
A07 RN - F 3 x 16		 SS 250 160 p6 130 180 183 365 390 151
EAZ 181 LV
MV
HV		 315642/
VJ202		 180
105
80		 A07 RN - F 3 x 35
A07 RN - F 3 x 16
A07 RN - F 3 x 16		 SS 250 165,1 p6 165 181 184 355 378 190
EAZ 190 LV
MV
HV		 BC4B
635122		 140
80
60		 A07 RN - F 3 x 25
A07 RN - F 3 x 16
A07 RN - F 3 x 16		 SS 250 170 p6 130 190 193 375 402 151
EAZ 202 LV
MV
HV		 313812 165
95
70		 A07 RN - F 3 x 25
A07 RN - F 3 x 16
A07 RN - F 3 x 16		 SS 250 180 p6 168 202 205 375 402 190
EAZ 212 LV
MV
HV		 314199 B 200
115
90		 A07 RN - F 3 x 35
A07 RN - F 3 x 25
A07 RN - F 3 x 16		 SS 250 190 p6 200 212 215 385 412 217
EAZ 222-1 LV
MV
HV		 314553 190
110
85		 A07 RN - F 3 x 35
A07 RN - F 3 x 16
A07 RN - F 3 x 16		 SS 250 200 p6 170 222 225 385 412 190
EAZ 222-2 LV
MV
HV		 313893 215
125
95		 A07 RN - F 3 x 25
A07 RN - F 3 x 16
A07 RN - F 3 x 16		 SS 250 200 p6 200 222 225 395 422 217
EAZ 226 LV
MV
HV		 313811 210
120
95		 A07 RN - F 3 x 35
A07 RN - F 3 x 25
A07 RN - F 3 x 16		 SS 250 200 p6 192 226 229 400 425 213
EAZ 244 LV
MV
HV		 313894 B 300
175
130		 A07 RN - F 3 x 50
A07 RN - F 3 x 35
A07 RN - F 3 x 25		 SS 350
SS 250		 220 r6 225 244 247 410 435 247
EAZ 246 LV
MV
HV		 313839 260
150
115		 A07 RN - F 3 x 50
A07 RN - F 3 x 25
A07 RN - F 3 x 25		 SS 350
SS 250		 220 r6 192 246 249 410 435 214
EAZ 260 LV
MV
HV		 313824 275
160
120		 A07 RN - F 3 x 50
A07 RN - F 3 x 25
A07 RN - F 3 x 35		 SS 350
SS 250		 230 r6 206 260 263 425 450 227
EAZ 265 LV
MV
HV		 635194 240
140
105		 A07 RN - F 3 x 35
A07 RN - F 3 x 25
A07 RN - F 3 x 16		 SS 250 240 r6 180 265 268 430 457 201
EAZ 270 LV
MV
HV		 313921 265
155
115		 A07 RN - F 3 x 50
A07 RN - F 3 x 25
A07 RN - F 3 x 25		 SS 350
SS 250		 240 r6 220 270 273 435 460 233
EAZ 292 LV
MV
HV		 313823 295
170
130		 A07 RN - F 3 x 50
A07 RN - F 3 x 25
A07 RN - F 3 x 25		 SS 350
SS 250		 260 r6 220 292 295 445 470 240
EAZ 308 LV
MV
HV		 314719 C 335
195
145		 A07 RN - F 3 x 50
A07 RN - F 3 x 35
A07 RN - F 3 x 25		 SS 350
SS 250		 280 r6 275 308 311 460 490 296
EAZ 312 LV
MV
HV		 313822 285
165
125		 A07 RN - F 3 x 50
A07 RN - F 3 x 25
A07 RN - F 3 x 25		 SS 350
SS 250
SS 250		 280 r6 220 312 315 465 490 238
EAZ 332 LV
MV
HV		 314484 D 365
210
160		 A07 RN - F 3 x 70
A07 RN - F 3 x 35
A07 RN - F 3 x 25		 SS 350
SS 250		 300 r6 300 332 335 480 500 322
EAZ 378 LV
MV
HV		 314485 A 375
240
205		 A07 RN - F 3 x 70
A07 RN - F 3 x 50
A07 RN - F 3 x 35		 SS 350
SS 250		 340 r6 350 378 381 525 555 368