Cylindrical Inner Bore Inlet Bearing Device

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When the bearing's inner ring is tightly fitted with the shaft and the outer ring is loosely fitted within the housing, it is a non-detachable bearing assembly. In such cases, the bearing should be mounted on the shaft first, and then the shaft along with the bearing is inserted into the housing. If the bearing is small, you can use a soft metal hammer to gently tap the end face of the ring to push the bearing into place. However, ensure that the tapping force is evenly distributed across the ring to avoid damaging the bearing. If the outer ring is tightly fitted with the housing bore while the inner ring is loosely fitted with the shaft, the bearing can be mounted directly onto the shaft first. When either the inner or outer ring is tightly engaged with the shaft or housing, a special sleeve tool should be used to press the bearing into position. For separable bearings, installation is more straightforward since both the inner and outer rings can be easily removed. When installing, make sure the shaft with the inner ring is carefully inserted into the housing with the outer ring already in place. Maintain concentricity during installation to prevent damage to the rolling elements and raceways. When dealing with larger bearings, where the required installation force is significant or the fit is too tight for cold mounting, it may be necessary to heat the bearing before installation. The heating temperature must be strictly controlled. Typically, the temperature should not exceed 100°C, with an ideal range of 80–100°C. Bearings with dust covers or seals should not be heated, as this could cause lubricant loss. Common heating methods include electric induction heating or oil bath heating.

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