bearings, yes inside behind the pully wheel, around the shaft. they do ware out need a stearing pump pully puller available at most auto parts stores for rent.
The reservoir can be removed fairly simple. There are a couple of 5/16 bolts that attract your attention, but remove the hoses first while the reservoir is sturdily secure. I used a pair a visegrips...
If the belt is tight and turning the pulley on the pump when the engine runs and is full, you have either got a restiction going to the rack and pinion, a faulty pump, or a bad rack. One other...
See it depends on the type of car one uses. for exaple a passenger car may cost around 2500 to 2500 in Indian rupees and also an utility vehicle costs around 3000 to 4000 INR