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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 |
---|---|---|---|---|
400 mm x 540 mm x 106 mm ISO 23980 KCW33+H3980 spherical roller bearings | Normal Duty | Setscrew Ball Bearing | 206 Series | Stainless Steel |
ISO HK2012 cylindrical roller bearings | Intermediate Duty | Setscrew Ball Bearing | 206 Series | Zinc |
ISO 7048 ADF angular contact ball bearings | 215 Series | Expansion | 4 Bolt Pillow Block | Triple Lip |
280 mm x 350 mm x 69 mm ISO SL014856 cylindrical roller bearings | Cast Iron | #5 Radial Extra Thrust | 5.4375 in | Radial Extra Thrust Seal |
340 mm x 520 mm x 180 mm ISO 24068 K30W33 spherical roller bearings | Normal Duty | Grip Tight Ball Bearing | 214 Series | Cast Iron |
40 mm x 80 mm x 32 mm ISO 33208 tapered roller bearings | Intermediate Duty | Setscrew Ball Bearing | 206 Series | Zinc |
150 mm x 320 mm x 128 mm ISO 23330W33 spherical roller bearings | Intermediate Duty | Setscrew Ball Bearing | 204 Series | Zinc |
ISO 7410 ADB angular contact ball bearings | 207 Series | Non-Expansion | Narrow Slot Take-Up | Grease Seal (Taper) |
83,345 mm x 125,412 mm x 25,4 mm ISO 27689/27620 tapered roller bearings | Normal Duty | Setscrew Ball Bearing | 207 Series | Cast Iron |
ISO 3309 angular contact ball bearings | Normal Duty | Setscrew Ball Bearing | 205 Series | Cast Iron |
280 mm x 500 mm x 130 mm ISO 22256 KW33 spherical roller bearings | Normal Duty | Eccentric Collar Ball Bearing | 215 Series | Cast Iron |
380 mm x 480 mm x 46 mm ISO NJ1876 cylindrical roller bearings | Intermediate Duty | Setscrew Ball Bearing | 206 Series | Zinc |