●○ These bearings are designed with three contact angle classifications as shown in Table 1.
○ Normally. contact angle A design and B design are fitted with a cage as shown in Table 2.
○ High precision (JIS/ISO class 5 or higher) may be fitted with a machined cage of bronze or phenolic resin or a polyamide cage.
Contact angle C design are generally applied high precision. JIS (ISO) class 5 or higher. and are fitted with a machined phenolic resin cage or a polyamide cage.