When assembling bearings, the most basic requirement is to make the added axial force act directly on the end face of the bearing ring (when installed on a shaft, the added axial force should act directly on the inner ring, and when installed on a hole, the added force should act directly on the outer ring). Try not to affect the rolling elements. The assembly methods include hammering, press assembly, hot assembly, and frozen assembly.

1. Hammer method

Use a hammer with a copper rod and some softer materials as pads before hammering. Be careful not to let foreign matter such as copper powder fall into the bearing raceway. Do not directly hit the inner and outer rings of the bearing with a hammer or punch to avoid affecting the bearing's fit accuracy or causing bearing damage.

2. Screw press or hydraulic press assembly method

For bearings with larger interference tolerances, they can be assembled using a screw press or hydraulic press. Before pressing, the shaft and bearing should be leveled and applied with a little lubricating oil. The pressing speed should not be too fast. After the bearing is in place, the pressure should be removed quickly to prevent damage to the bearing or shaft.

3. Hot loading method

The hot mounting method is to place the bearing in oil and heat it to 80°C-100°C to expand the inner hole of the bearing and then fit it onto the shaft, which can prevent the shaft and bearing from being damaged. The hot-fitting method is not applicable to bearings with dust covers and sealing rings that are already filled with grease.

Brand	Domestic	Functions	Double-sided with dust cover
Bearing Size	Medium/small size

Deep Groove Ball Bearing Double Side with Dust Cover