Q1 = M L1+ (3 x P) L1 = Q1 = M L1 + (3 x P) L1 = D1 = o C1 = C C1 L1 = X = Q2 = M L2 + (3 x P) L2 = Q2 = M Q2 = M K axis (T axis) J axis L2 + (3 x P) L2 = L2 + (3 x P) L2 = D2 = o L2 = C2 C2 = C Y = Symbol: A31 Machine female threads into the long shaft. �� The maximum dimension L1 is, as a rule, twice the thread size. (Example) For M3: L1 = 6 mm �� Applicable shaft types: S, Y (mm) Size CRB2, CRBU2 Q1 S Y 10 Not available 15 M3 20 M3, M4 30 M3, M4, M5 Symbol: A33 Machine female threads into the long shaft. �� The maximum dimension L1 is, as a rule, twice the thread size. (Example) For M3: L1 = 6 mm �� Applicable shaft types: J, K, T (mm) Size CRB2, CRBU2 Q1 J K T 10 Not available 15 M3 20 M3, M4 30 M3, M4, M5 40 M3, M4, M5 Symbol: A37 The long shaft can be fur ther shortened by machining it into a stepped round shaft. (If shortening the shaft is not required, indicate “*” for dimension X.) �� Applicable shaft types: J, K, T �� Equal dimensions are indicated by the same marker. (If not specifying dimension C1, indicate “*” instead.) (mm) Size CRB2 CRBU2 X L1 max D1 X L1 max D1 10 4 to 14 X-3 o3 to o3.9 2 to 14 X-1 o3 to o3.9 15 5 to 18 X-4 o3 to o4.9 3 to 18 X-1.5 o3 to o4.9 20 6 to 20 X-4.5 o3 to o5.9 3 to 20 X-1.5 o3 to o5.9 30 6 to 22 X-5 o3 to o7.9 3 to 22 X-2 o3 to o7.9 40 8 to 30 X-6.5 o3 to o9.9 4 to 30 X-3 o3 to o9.9 Axial: Top (Long shaft side) Axial: Bottom (Short shaft side) Symbol: A32 Machine female threads into the short shaft. �� The maximum dimension L2 is, as a rule, twice the thread size. (Example) For M4: L2 = 8 mm However, for M5 with S shaft, the maximum dimension L2 is 1.5 times the thread size. �� Applicable shaft types: S, Y (mm) Size CRB2, CRBU2 Q2 S Y 10 Not available 15 M3 20 M3, M4 30 M3, M4, M5 Symbol: A34 Machine female threads into the short shaft. �� The maximum dimension L2 is, as a rule, twice the thread size. (Example) For M3: L2 = 6 mm However, for M5 with T shaft, the maximum dimension L2 is 1.5 times the thread size. �� Applicable shaft types: J, K, T (mm) Size CRB2, CRBU2 Q2 J K T 10 Not available 15 M3 20 M3, M4 30 M3, M4, M5 40 M3, M4, M5 Symbol: A38 The short shaft can be further shortened by machining it into a stepped round shaft. ( I f shor tening the shaft i s not required, indicate “*” for dimension Y.) �� Applicable shaft type: K �� Equal dimensions are indicated by the same marker. (If not specifying dimension C2, indicate “*” instead.) (mm) Size CRB2, CRBU2 Y L2 max D2 10 2 to 14 Y-1 o3 to o3.9 15 3 to 18 Y-1.5 o3 to o4.9 20 3 to 20 Y-1.5 o3 to o5.9 30 3 to 22 Y-2 o3 to o7.9 40 6 to 30 Y-4.5 o5 to o9.9 Shaft type Shaft type Shaft type Shaft type 42 Series CRB□2