RKB TAPER ROLLER BEARINGS ASSY

RKB taper roller bearings assy

RKB taper roller bearings assy: dsignation system Taper roller bearings assy code! Configuration RKB internal system Example: TDO 081406/508750 AAHA1ZBBT2B K1453015

RKB taper roller bearings assy: designs TDO TDOM TDONAZ TDI TDIS TQO TQO/G TQO/EG TQO pierced rollers TQOS/AVS1 TQOS/AVS2 TQOS/AVS2/1 TQI TQIT

RKB taper roller bearings assy: inches basic code internai system Inches basic code: XX YY ZZ / AA BB CC ... Suffix ... KDDD FF d = XX,CC inch D = YY,AA inch T = ZZ,BB inch K factor = D,DD r,,2 = E,E mm F,F mm r3,4 Example: TDI 081407/127562 Al AZBBT2BK1 761564 d = 8,62 inch = 218,95 mm D = 14,12 inch = 358,65 mm T = 7,75 inch = 196,85 mm K factor = 1,76 r12 = 1,5 mm r34 = 6,4 mm TDI main dimensions

RKB taper roller bearings assy: suffix system The RKB suffix system for multi-row taper roller bearings is compose! of two diffrent parts: 驕 Bearing version (corresponding to diffrent excutions) 驕 Bearing features Version AA AA1 AB AA2 AC AA3 Օ Օ Օ Օ Օ Օ Օ Օ Օ Օ Օ Օ Features HAH4 = case-hardened steel HBH3 = bainite treatment PTH4 = phosphate treatment ZB = ZB rollers profile VL = Victory Line (RKB premium brand) BT2B = double-row taper roller bearing BT4B = four-row taper roller bearing Example: TDI 081407/127562 A1AZBBT2B K1 761564 1. Inner and outer rings 2. Outer ring 3. Inner ring...

RKB taper roller bearings assy: B.E.P. and M.E.P. dfinitions AN of the multi-row taper roller bearings manufactured by RKB are supplied correctly assembled, with the axial internai clearance (B.E.P. - Bench End Play) required. Usually the correct B.E.P. range is obtained by RKB adjusting the width of the spacers between cnes and cups, but in some designs, with no spacers between c鴴nes and cups, the B.E.P. is pre-adjusted by RKB. When the bearing is mounted on the shaft and in the housing with interfrence fit, the axial internai clearance is reduced. The remaining axial internai clearance after...

RKB taper roller bearings assy: B.E.P. in Technical Fiches RKB supplies the B.E.P. value in its Technical Fiches and Q.C.C.D.S. (if available):

RKB taper roller bearings assy: B.E.P. in Q.C.C.D.S. S33S TQOmn*AllMU*TU 1* V.U t», Il I ' .- o_[j HKB us ZI

RKB taper roller bearings assy: from B.E.P. to R.I.C. The Technical Fiches provided by RKB supply ail the information necessary to calculate the radial internai clearance (R.I.C.) of the bearing starting from the B.E.P. and the e values:

RKB double-row taper roller bearings: bearing selection The RKB double-row taper roller bearings are available in two diffrent arrangements: Face-to-face (TDI) Back-to-back (TDO) In the TDI configuration the load lines are converging as the axis of rotation is approached. This arrangement doesn't increase the stiffness of the assembly and the bearing cannot support overturning moments. Reversely, in the TDO configuration, the contact angle is diverging as the axis of rotation is approached, increasing the stiffness of the assembly. This type of arrangement is suitable to resist overturning moments....

The RKB TDO configuration consists of a double-row taper roller bearing composed of two single cnes, one double cup, two pressed steel cages, two rows of back-to-back rollers and one cone spacer (plain or with annular groove and lubrication holes). The width of the cone spacer permits to obtain the correct B.E.P. The TDO bearings with a blind hole in the double cup are particularly suitable to be mounted with a loose fit in the housing, due to the hole counter bored that allows the insertion of a pin to avoid sliding between the double cup and the housing.

The RKB TDOM configuration consists of a double-row taper roller bearing composed of two single cnes, one double cup, two machined brass cages, two rows of back-to-back rollers and one cone spacer (with annular groove and lubrication holes). The width of the cone spacer permits to obtain the correct B.E.P. The TDOM bearings with a blind hole in the double cup are designed to be mounted with a loose fit in the housing due to the hole counter bored that allows the insertion of a pin to avoid sliding between the double cup and the housing.

The RKB TDONAZ configuration consists of a double-row taper roller bearing composed of two single cnes, one double cup, two pressed steel cages, two rows of back-to-back rollers and two pressed steel shields. There are no spacers and the bearing is supplied with the correct B.E.P.

RKB double-row taper roller bearings: example of Technical Fiche Double row taper roller bearings TDO 040 70* 5018 75 A1ZBBT7 BK1403515

RKB double-row taper roller bearings: product samples

The RKB TDI configuration consists of a double-row taper roller bearing composed of two single cups, one double cone, two pressed steel cages, two rows of face-to-face rollers and one cup spacer. The width of the cup spacer permits to obtain the correct B.E.P.

The RKB TDIS configuration is a double-row taper roller bearing composed of two single cups, one double cone, two pressed steel cages and two rows of face-to-face rollers. Compared to TDI, TDIS configuration has a B.E.P. equal to zro due to the lacking of a spacer between the two cups and a higher contact angle to increase the axial load capability of the bearing. This type of bearing is usually mounted with a loose fit on the shaft. For this reason, RKB produces this type of bearing with one or two keyway slots (red circle) in the bore or with one semicircular locating axial groove (green ellipse)...

RKB double-row taper roller bearings: example of Technical Fiche Double row taper roi ter bearings__, lmmtn, TDiS 3H1W AIHAgT» | RKB

RKB taper roller bearings assy: serial number, mounting squence and marked zones The serial number (red circle) indicates a single part in a production lot. RKB applies the serial number only to some types of bearings, especially those made up of several diffrent parts (e.g. four-row taper roller bearings). 1 Serial number RKB produces various types of bearings composed of several parts assembled together in a well-defined s驩quence that ensures the correct functioning of the bearing. The mounting squence is necessary especially for TQO and TQOS bearings where the B.E.P. is adjusted by the spacers...