Parameters of tapered roller bearings
Radial clearanceZWZ single row tapered roller bearings only have clearance after installation and can be determined only after there is another bearing positioned in the opposite direction. Tapered roller bearings generally use steel stamping, basket cage, but larger size, but also the use of solid body support frame.1. when the bearing outer diameter of D is less than or equal to 650mm, the stamping steel cage, the cage rear code are not marked2. when the bearing outer diameter D>650mm, uses the steel entity pillar holder, the cage rear code name does not mark the equivalent dynamic loadP=Fr KN] when Fa/Fr is less than or equal to eP=0.4Fr +YFa [KN] when Fa/Fr>eWhen single row tapered roller bearings are used in pairs (the basic dimensions are different), the additional axial forces induced by radial loads must be taken into account when calculating the equivalent dynamic load of bearings.
The basic dimensions of ZWZ tapered roller bearings are listed in the dimension data sheet,Single row tapered roller bearings:Inside diameter range: 20mm ~ 1270mmOutside diameter range: 40mm ~ 1465mmWidth size range: 15mm to 240mmDouble row tapered roller bearing:Inside diameter range: 38mm ~ 1560mmOutside diameter range: 70mm ~ 1800mmWidth size range: 50mm to 460mmFour row tapered roller bearing:Inside diameter range: 130mm ~ 1600mmOutside diameter range: 200mm ~ 2000mmWidth size range: 150mm ~ 1150mm ZWZ, Metric tapered roller bearing has common grade tolerance, also provides P6X, P6, P5, P4 and P2 class tolerance products, all in line with GB307.1.ZWZ taper roller bearings are of general class tolerances and can be supplied with CL2, CL3, CL0 and CL00 tolerances as required.
The additional axial force S of a single row tapered roller bearing can be approximately calculated by the press type: S=, Fr/2YEquivalent static loadSingle row tapered roller bearingsP0=0.5Fr +Y0Fa KN]If P0e: A: internal structure changeB: increased contact angleX: adopt international standard for sizeCD: double outer ring with oil holes or oil grooves.
