Specifications Precision grade JIS B 1704 grade 3 Core hardness Less than HB194 Gear teeth Gleason Surface hardness Pressure angle 20 Surface treatment Black oxide Material S45C (Carbon steel) Surface finish Cut Heat treatment - Datum reference surface for gear cutting Bore

B3 B4 B5 B6

Gear Ratio 3

Module 18

Catalog No. Module No. of teeth Bore Hub dia. Pitch dia. Outside dia. Mounting distance Total length Crown to back length Hub width Length of bore Face width Holding surface dia. Face angle Shape Allowable torque (kgfm) Allowable torque (Nm) Backlash (mm) Weight (kgf) Catalog No. m z AH7 B C D E F G H I J K L Bending strength Surface durability Bending strength Surface durability SB1-4515 [ DXF| DWG | 3D CAD] SB1-1545 [ DXF| DWG | 3D CAD] 1 45 15 8 6 30 12 45 15 45.37 17.67 17 29 11.77 12.51 10.06 6.95 5 6 9 12 6 32.02 10.05 7327' 2217' B4 B3 0.2895 0.0999 0.0273 0.0091 2.839 0.9797 0.2677 0.0892 0.030.13 0.09 0.01 SB1-4515 SB1-1545 SB1.25-4515 [ DXF| DWG | 3D CAD] SB1.25-1545 [ DXF| DWG | 3D CAD] 1.25 45 15 10 8 34 15 56.25 18.75 56.72 22.09 21 36 14.61 15.85 12.33 8.43 6 7.25 12 15 8 39.63 10.9 7327' 2217' B4 B3 0.5916 0.2042 0.0572 0.0191 5.802 2.002 0.5609 0.1873 0.040.14 0.2 0.02 SB1.25-4515 SB1.25-1545 SB1.5-4515 [ DXF| DWG | 3D CAD] SB1.5-1545 [ DXF| DWG | 3D CAD] 1.5 45 15 10 8 36 18 67.5 22.5 68.06 26.51 28 47 20.44 23.19 17.59 13.92 11 12.5 17 22.5 10 46.58 14.75 7327' 2217' B4 B3 1.051 0.3628 0.1036 0.0345 10.31 3.558 1.016 0.3383 0.050.15 0.25 0.05 SB1.5-4515 SB1.5-1545 SB2-4515 [ DXF| DWG | 3D CAD] SB2-1545 [ DXF| DWG | 3D CAD] 2 45 15 12 10 40 24 90 30 90.75 35.35 40 60 30.4 29.8 26.12 15.89 17 14 26 29 15 59.04 19.13 7327' 2217' B4 B3 2.689 0.9284 0.2729 0.091 26.37 9.104 2.676 0.8924 0.060.16 0.7 0.1 SB2-4515 SB2-1545 SB2.5-4515 [ DXF| DWG | 3D CAD] SB2.5-1545 [ DXF| DWG | 3D CAD] 2.5 45 15 15 12 50 30 112.5 37.5 113.43 44.18 50 75 38.35 38.41 32.65 19.86 22 17.5 35 37 20 72.84 20.51 7327' 2217' B4 B3 5.464 1.886 0.5659 0.1886 53.58 18.5 5.55 1.85 0.070.17 1 0.2 SB2.5-4515 SB2.5-1545 SB3-4515 [ DXF| DWG | 3D CAD] SB3-1545 [ DXF| DWG | 3D CAD] 3 45 15 20 15 60 38 135 45 136.12 53.02 55 90 40.74 45.17 34.18 23.84 20 21.33 35 43 23 88.18 22.53 7327' 2217' B4 B3 9.201 3.176 0.9714 0.3238 90.23 31.15 9.526 3.175 0.080.18 1.8 0.35 SB3-4515 SB3-1545 SB4-4515 [ DXF| DWG | 3D CAD] SB4-1545 [ DXF| DWG | 3D CAD] 4 45 15 20 16 80 50 180 60 181.5 70.69 70 115 50.79 54.6 42.24 26.78 24 23.33 45 52 30 118.09 32.26 7327' 2217' B5 B3 21.52 7.427 2.346 0.782 211 72.83 23.01 7.669 0.120.22 4 0.7 SB4-4515 SB4-1545 SB5-4515 [ DXF| DWG | 3D CAD] SB5-1545 [ DXF| DWG | 3D CAD] 5 45 15 25 20 90 60 225 75 226.87 88.37 75 145 50.28 67.19 40.3 34.73 20 30 44 65 35 152.88 48.64 7327' 2217' B5 B3 40.21 13.88 4.516 1.505 394.3 136.1 44.29 14.76 0.140.24 6 1.4 SB5-4515 SB5-1545 CB6-4515 [ DXF| DWG | 3D CAD] SB6-4515 [ DXF| DWG | 3D CAD] SB6-1545 [ DXF| DWG | 3D CAD] 6 45 45 15 25 30 25 90 160 70 270 270 90 272.24 272.24 106.03 100 100 175 72.6 72.62 89.04 58.37 58.36 42.67 25 30 36.67 66 62 86 50 169.27 169.27 49.77 7327' 7327' 2217' B6 46 B3 15.39 76.6 26.43 5.243 8.87 4.064 150.9 751 259.2 51.42 87 39.85 0.160.26 8.9 17.5 2.4 CB6-4515 SB6-4515 SB6-1545 CB8-4515 [ DXF| DWG | 3D CAD] SB8-1545 [ DXF| DWG | 3D CAD] 8 45 15 35 30 120 100 360 120 362.99 141.39 125 230 86.6 109.2 69.49 53.57 25 46.67 80 103 60 238.83 58.58 7327' 2217' B6 B3 33.9 58.23 12.14 9.408 332.4 571 119.1 92.26 0.20.3 17.8 6.5 CB8-4515 SB8-1545 SBY8-4515 [ DXF| DWG | 3D CAD] SBY8-1545 [ DXF| DWG | 3D CAD] 8 45 15 35 30 200 100 360 120 362.99 141.39 125 230 83.74 99.93 69.49 53.56 30 46.67 67 93 50 238.92 61.77 7327' 2217' B4 B3 149.5 51.6 18.27 6.09 1466 506 179.2 59.7 0.20.45 35 5.9 SBY8-4515 SBY8-1545

Pitch Angle Gear 7134' Pinion 1826'

Gear Ratio 4

Module 1.53

Catalog No. Module No. of teeth Bore Hub dia. Pitch dia. Outside dia. Mounting distance Total length Crown to back length Hub width Length of bore Face width Holding surface dia. Face angle Shape Allowable torque (kgfm) Allowable torque (Nm) Backlash (mm) Weight (kgf) Catalog No. m z AH7 B C D E F G H I J K L Bending strength Surface durability Bending strength Surface durability SB1.5-6015 [ DXF| DWG | 3D CAD] SB1.5-1560 [ DXF| DWG | 3D CAD] 1.5 60 15 12 8 50 18 90 22.5 90.41 26.66 32 56 24.2 23.01 21.58 11.52 12 10.43 21 22.5 12 65.38 15.54 7722' 1702' B4 B3 1.766 0.4544 0.1785 0.0446 17.32 4.456 1.75 0.4374 0.050.15 0.62 0.04 SB1.5-6015 SB1.5-1560 SB2-6015 [ DXF| DWG | 3D CAD] SB2-1560 [ DXF| DWG | 3D CAD] 2 60 15 15 10 60 24 120 30 120.55 35.55 42 75 31.6 31.01 28.1 15.69 16 14.25 27 30 16 87.02 18.06 7722' 1702' B4 B3 4.211 1.078 0.438 0.1089 41.3 10.57 4.295 1.068 0.060.16 1.3 0.1 SB2-6015 SB2-1560 SB2.5-6015 [ DXF| DWG | 3D CAD] SB2.5-1560 [ DXF| DWG | 3D CAD] 2.5 60 15 20 12 70 30 150 37.5 150.69 44.44 53 94 40 39.02 35.63 19.87 20 18.06 34 37.5 20 108.64 20.57 7722' 1702' B4 B3 8.176 2.104 0.8704 0.2176 80.18 20.63 8.536 2.134 0.070.17 2.5 0.2 SB2.5-6015 SB2.5-1560 SB3-6015 [ DXF| DWG | 3D CAD] SB3-1560 [ DXF| DWG | 3D CAD] 3 60 15 20 15 80 38 180 45 180.83 53.33 64 112 47.97 44.1 43.15 23.04 25 21.12 41 43 22 134.4 31.58 7722' 1702' B4 B3 13.27 3.416 1.443 0.3609 130.1 33.5 14.15 3.539 0.080.18 4.2 0.35 SB3-6015 SB3-1560 SB4-6015 [ DXF| DWG | 3D CAD] SB4-1560 [ DXF| DWG | 3D CAD] 4 60 15 25 16 85 50 240 60 241.1 71.1 80 150 59.2 62 52.2 31.4 36 28.75 53 60 32 174.03 36.12 7722' 1702' B5 B3 33.49 8.618 3.77 0.9424 328.4 84.51 36.97 9.242 0.120.27 6 0.9 SB4-6015 SB4-1560 SBY5-6015 [ DXF| DWG | 3D CAD] SBY5-1560 [ DXF| DWG | 3D CAD] 5 60 15 30 25 180 60 300 75 301.38 88.9 80 185 54.01 75.03 45.26 36.74 25 33.13 45 73 40 218.79 49.15 7722' 1702' B4 B3 65.4 16.83 7.59 1.897 642 165.1 74.4 18.61 0.140.34 17.1 1.6 SBY5-6015 SBY5-1560 SBY6-6015 [ DXF| DWG | 3D CAD] SBY6-1560 [ DXF| DWG | 3D CAD] 6 60 15 35 25 200 75 360 90 361.66 106.66 100 220 68.16 85.17 58.31 42.08 25 38.13 56 82 45 267.73 54.92 7722' 1702' B4 B3 106.9 27.5 12.83 3.21 1048 270 125.8 31.5 0.160.36 30 2.9 SBY6-6015 SBY6-1560

Pitch Angle Gear 7558' Pinion 1402'

CAUTION:	Dimensions of the outside diameter, the overall length and crown to back length are all theoretical values, and some differences will occur due to the corner chamfering of the gear tips.
NOTE:	The allowable torques shown in the table are calculated according to JGMA Standards 403-01 and 404-01.
NOTE:	The items listed above as are available from stock until current inventory is exhausted. At that time the product will only be available on a made to order custom basis.
USEFUL HINT:	You may heat treat the teeth of S45C products. However, some deformation will take place which requires finishing operations to maintain bore tolerance. The precision of the gear will drop about one grade.

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