NACHI-FUJIKOSHI CORP.

• Bearing Online Catalog

• 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.
  

Contact Angle and Characterisics of Single-row Angular Contact Ball Bearings

Contact Angle Symbol	Example Bearing No.	Contact Angle (α)	Speed	Load capability (*2)		Cross Section
				Radial Load Direction(X)	Axial Load Direction (Y)
A	7205(*1)	30°	Normal	Normal	Normal
B	7205B	40°	Low	Low	High
C	7205C	15°	High	High	Low

(Note)
*1: Contact angle symbol "A" is omitted.
*2: Axial load be accommodated in one direction only.

Standard Cage Materials (For JIS / ISO class 0 or 6)