Philips VCR's are well known for being very poorly made, for most models you can buy service/repair kits which contain the parts that usually break.
There may be more than one kit for the model you have, and you have to find out which kit contains the parts you require.
However, it's usually a really big job to fit the parts, and you need to know how to realign the mechanism.
As a non-Philips dealer we refuse to accept them for repair (as do much of the TV service trade).