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 large interference tolerance, screw press or hydraulic press can be used for assembly. Before pressing, the shaft and bearing should be laid flat and a little lubricating oil should be applied. 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-fitting method is to heat the bearing in oil to 80℃-100℃, expand the inner hole of the bearing, and then put it on the shaft to prevent the shaft and bearing from being damaged. The hot-fitting method is not suitable for bearings with dust covers and seals that are already filled with grease.

Type	Bearing	Brand	JLC
Categories	Deep groove ball bearing	Functions	Outer ring with retaining groove
Body Material	SUJ2	Bearing Size	Medium/small size

Deep Groove Ball Bearing Outer Ring with Stop Groove