Removing needle roller bearing
Remove left and right tension struts.
Remove bearing bushing (1).
Lever out sealing rings (3) with screwdriver.
Drive out needle roller bearing (2) with drift, BMW # 33 6 620.
Installing needle roller bearing
Heat bearing seats to 100°C (212°F).
Press in needle roller bearing (2) with drift, BMW # 33 6 671.
Press-in depth "A": 4.5 mm (0.18 in)/
Press in sealing rings (3) with drift, BMW # 33 6 671, and spacing ring, BMW # 33 6 672.
Fit bearing bushing (1).