Delta ASDA-A3 Series User Manual page 801

Specifications
(9) Shaft type and oil seal
A
(with fixed screw holes)
(with fixed screw holes)
(10) Shaft diameter
S: standard
7: specific (14 mm)
(11) Special code
1: standard products
A-8
w/o brake
w/o oil seal
Round shaft
Keyway
with brake
w/o oil seal
- -
P Q
w/o brake with brake
with oil seal with oil seal
C D
R S
ASDA-A3