| No |
Item |
Symbol |
Meaning |
| ① |
Outer race material symbol |
DT |
Polyacetal resin *Precision bearing insert |
| ② |
Outer race shape symbol |
（R） |
Flat *Omitted |
| ③ |
Retainer or full ball type |
Omitted |
Retainer (Polypropylene) |
| ④ |
Outer race outer diameter |
– |
(Numerical ΦD dimension shown in drawing) |
| ⑤ |
Ball material symbol |
Omitted |
Carbon steel ball |
| ⑥ |
Inner race shape symbol |
AH |
Inner ring with riveting shaft |
| ⑦ |
Inner race material symbol |
Omitted |
Bearing steel |
| ⑧ |
Bore and clearance dimension for mounting |
– |
(Numerical Φd/C dimension shown in drawing) |
| ⑨ |
Additional information |
– |
The name of insert bearing |
| CB |
Outer race color tone: black |
| – |
Numerical B/L dimension shown in drawing *Including omitted |
