In 2015 we at SRK felt the need to have a sub brand based on specifications. SRK~EXPORT was developed especially for price sensitive consumers in India without significant compromise on performance. This quality was a notch below SRK quality.
In 2016 a new brand was developed for heavy duty applications and is one notch above SRK in quality
XRK is a new brand launched in 2017 which stands for Extra Heavy Duty SRK~ and uses G10 balls and special seals. This is the highest quality in SRK family.
AVZ or SRK Value is the low price bearings using Carbon Steel instead of Chrome steel