X = Y = The above figure shows the CRB2 series. S axis Y axis d1 = o d1 = o The above figure shows the CRB2 series. d1 = o The above figure shows the CRB2 series. T axis K axis L2 = L1 = d1 d3 = o d3 = o d3 L1 = d1 The above figure shows the CRB2 series. Q1 = M Q1 L1 = L1 Axial: Top (Long shaft side) Axial: Bottom (Short shaft side) Double Shaft Symbol: A51 The long shaft is shortened. �� Applicable shaft type: J, K, T (mm) Size CRB2 CRBU2 X X 10 3 to 14 1 to 14 15 4 to 18 1.5 to 18 20 4.5 to 20 1.5 to 20 30 5 to 22 2 to 22 40 6.5 to 30 3 to 30 Symbol: A55 The short shaft is shortened. �� Applicable shaft type: J (mm) Size CRB2, CRBU2 Y 10 1 to 8 15 1.5 to 9 20 1.5 to 10 30 2 to 13 40 4.5 to 15 Symbol: A39 Applicable to single vane type only. Shaft with through-hole (Additional machining of S, Y shaft) �� Applicable shaft type: S, Y �� Equal dimensions are indicated by the same marker. �� Not available for size 10 �� A parallel key is used on the long shaft for size 40. �� Minimum machining diameter for d1 is 0.1 mm. (mm) Size CRB2 CRBU2 S Y S Y d1 d1 15 o2.5 o2.5 20 o2.5 to o3.5 o2.5 to o3.5 30 o2.5 to o4 o2.5 to o4 40 o2.5 to o3 o2.5 to o5 Symbol: A41 Applicable to single vane type only. Shaft with through-hole �� Not available for size 10 �� Applicable shaft type: J �� Equal dimensions are indicated by the same marker. (mm) Size CRB2, CRBU2 d1 15 o2.5 20 o2.5 to o3.5 30 o2.5 to o4 40 o2.5 to o4.5 Symbol: A40 (mm) Size CRB2, CRBU2 K T K T d1 d3 15 o2.5 o2.5 to o3 20 . o2.5 to o4 30 . o2.5 to o4.5 40 . o2.5 to o5 Symbol: A42 Applicable to single vane type only. A special end is machined onto both the long and short shafts, and a throughhole is drilled into both shafts. Female threads are machined into the throughholes, whose diameter is equivalent to the diameter of the pilot holes. �� Not available for size 10 �� The maximum dimension L1 is, as a rule, twice the thread size. (Example) For M5: L1 max. = 10 mm However, for M5 on the short shaft of S shaft: L1 max. = 7.5 mm �� A parallel key is used on the long shaft for size 40. �� Applicable shaft type: S, Y �� Equal dimensions are indicated by the same marker. (mm) Thread CRB2, CRBU2 15 20 30 40 S Y S Y S Y S Y M3 x 0.5 o2.5 o2.5 o2.5 o2.5 M4 x 0.7 . o3.3 o3.3 . M5 x 0.8 . . o4.2 . Shaft type Shaft type Shaft type Size Applicable to single vane type only. Shaft with through-hole (Additional machining of K, T shaft) �� Applicable shaft type: K, T �� Equal dimensions are indicated by the same marker. �� Not available for size 10 �� d1 = o2.5, L1 = 18 (max.) for size 15; minimum machining diameter for d1 is 0.1 mm. �� d1 = d3 for size 20 to 40 44 Series CRB□2