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 B5 B6

Gear Ratio 4

Module 48

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 64 122 47.97 44.1 43.15 23.04 25 21.12 41 43 32 134.4 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] CB4-6015 [ DXF| DWG | 3D CAD] SB4-1560 [ DXF| DWG | 3D CAD] 4 60 60 15 25 20 16 85 80 50 240 240 60 241.1 241.1 71.1 80 80 150 59.2 59.2 62 52.2 52.21 31.4 36 20 28.75 53 53 60 32 174.03 174.04 36.12 7722' 7722' 1702' B5 B6 B3 33.49 6.73 8.618 3.77 2.229 0.9424 328.4 66 84.51 36.97 21.86 9.242 0.120.27 6 4.9 0.9 SB4-6015 CB4-6015 SB4-1560 CB5-6015 [ DXF| DWG | 3D CAD] SB5-1560 [ DXF| DWG | 3D CAD] 5 60 15 25 20 100 60 300 75 301.38 88.9 80 185 56.2 84.6 45.26 36.74 18 33.1 50 83 50 199.17 46.69 7722' 1702' B6 B3 15.23 19.51 5.174 3.008 149.4 191.3 50.74 29.5 0.140.34 9 1.9 CB5-6015 SB5-1560 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 CB6-6015 [ DXF| DWG | 3D CAD] SB6-1560 [ DXF| DWG | 3D CAD] 6 60 15 25 25 110 75 360 90 361.66 106.7 100 220 71.5 99.5 58.31 42.1 20 38.1 64 96 60 238.28 43.23 7722' 1702' B6 B3 26.06 33.37 9.149 5.319 255.6 327.2 89.72 52.16 0.160.36 14 3.2 CB6-6015 SB6-1560 SBY6-6015 [ DXF| DWG | 3D CAD] SBY6-1560 [ DXF| DWG | 3D CAD] 6 60 15 35 25 200 75 360 90 361.66 106.6 100 220 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 CB8-6015 [ DXF| DWG | 3D CAD] SB8-1560 [ DXF| DWG | 3D CAD] 8 60 15 40 30 120 95 480 120 483.88 135.5 132 290 92.42 109.93 79.76 51.94 20 46.87 80 104 60 357.31 57.23 7749' 1553' B6 B3 50.39 64.52 18.64 10.84 494.2 632.7 182.8 106.3 0.20.3 29 6 CB8-6015 SB8-1560

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.

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