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How to determine the amount of interference of bearings? Many users we consulted on this issue, and today we'll share with you next on the method for determining bearing interference fit. Installation of tapered bore bearings always with an interference fit. Radial internal clearance reduction of value, or the inner ring on the conical journal axial displacement, are used to determine and measure the amount of interference.
A feeler gauge decrease the value of the clearance.
With a feeler gauge clearance reduction: bearings installed before and after the radial internal clearance with a feeler gauge suitable for large and medium-sized spherical and CARB bearings. It is best to measure the clearance between the outer ring and the load roller.
Measuring the lock nut tightening angle.
The lock nut tightening angle measurement: measurement lock nut tightening angle is a proven effective method that can be used to determine the correct degree of interference on small and medium-sized conical journal bearing. The fastening angle a guidance value has been established, helps precise positioning in the conical journal bearing.
Measuring the axial advance distance.
Measuring the axial propulsion Distance: install tapered bore bearings can be done by measuring the the advance distance s inner ring on the journal to. Axial advancing the guiding values of the distance. The method is more suitable for such a situation, however, the propulsion method. This installation method provides a reliable and simple way of determining the amount of interference. For the axial displacement of the predetermined position, by controlling the bearing relative to achieve proper fit. The method uses a hydraulic nut with a dial gauge, as well as on selected oil pump is specially calibrated digital metering. The necessary hydraulic pressure and the axial displacement of the single bearing and these determined values can be precise positioning of the bearing.
Measuring the inner ring expansion amount.
Measuring the inner ring expansion amount: By measuring the amount of expansion of the inner ring, can be simply and very accurately determine the correct position of the large size spherical and CARB bearings journalled. Such measurements, using a sensor integrated with the bearing inner ring, and a dedicated the handheld indicator and the common hydraulic installation tool. Bearing size, shaft finish material or design - solid or hollow and other aspects of the problem, do not need to be considered.
| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7014A NSK | 70 | 110 | 20 |
| 7914C NSK | 70 | 100 | 16 |