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- Phone(Nonworking Time)91-33-46031129
ISO Bearings
Contact NowA word of caution, regarding IRC for those selecting ISO deep groove ball, cylindrical roller, and spherical roller bearings, is the “Normal” IRC shown in the tables for these bearings is not sufficient for these bearings if the bearing employs a “heavy” shaft fit. A heavy fit in most cases requires a “C3” IRC as a bearing with a “Normal” IRC could be too tight. A light to medium fit with a relatively high operating speed that generates heat also requires a “C3” IRC. If both a heavy fit is used along with a high speed, a “C4” IRC is typically required. Very few bearings with “Normal” IRC are used or stocked, with “C3” bearings being the most popular. For complicated applications, we recommend that users of our bearings contact our sales department for specific fitting and clearance recommendations.
Standard Internal Radial Clearance values for deep groove ball, cylindrical roller, and spherical roller bearings are found in Tables XV through XXII. Please note that there are different standards for metric deep groove ball bearings and inch ball bearings, as well as ISO cylindrical roller bearings and domestic cylindrical roller bearings. Also, the IRC values differ for straight bore bearings versus bearings with a tapered bore. There are no standards for tapered roller bearings. “Clearance” values for these bearings are expressed axially as “lateral” or “Bench End Play” (BEP) and are designed and specified for each application.
Bearing Number | Bore Dia | Outer DIa | Width | Size |
---|---|---|---|---|
180 mm x 320 mm x 52 mm ISO NU236 cylindrical roller bearings | Normal Duty | Setscrew Ball Bearing | 207 Series | Cast Iron |
45 mm x 100 mm x 25 mm ISO 31309 tapered roller bearings | Normal Duty | Setscrew Ball Bearing | 204 Series | Cast Iron |
ISO 3310-2RS angular contact ball bearings | Normal Duty | Setscrew Ball Bearing | 206 Series | Cast Iron |
ISO 7034 ADF angular contact ball bearings | Intermediate Duty | Eccentric Collar Ball Bearing | 207 Series | Cast Iron |
ISO 7016 ADT angular contact ball bearings | HEAVY DUTY | 24.0000 in | 4 X 4 X 3/8 | 250 |
120 mm x 230 mm x 52 mm ISO GE120AW plain bearings | Normal Duty | Setscrew Ball Bearing | 206 Series | Cast Iron |
ISO 3302-2RS angular contact ball bearings | Normal Duty | Setscrew Ball Bearing | 207 Series | Cast Iron |
65 mm x 120 mm x 23 mm ISO 20213 spherical roller bearings | Normal Duty | Setscrew Ball Bearing | 204 Series | Cast Iron |
95 mm x 200 mm x 45 mm ISO NUP319 cylindrical roller bearings | Normal Duty | Setscrew Ball Bearing | 215 Series | Cast Iron |
220 mm x 400 mm x 108 mm ISO NH2244 cylindrical roller bearings | Intermediate Duty | Setscrew Ball Bearing | 206 Series | Zinc |
ISO K35x40x25 needle roller bearings | Normal Duty | Setscrew Ball Bearing | 204 Series | Cast Iron |
ISO HK253315 cylindrical roller bearings | Normal Duty | Grip Tight Ball Bearing | 207 Series | Polymer |