Specifications Precision grade JIS B 1704 grade 4 Core hardness HB300320 Gear teeth Gleason Surface hardness HRC5560 Pressure angle 20 Surface treatment - Helix angle 35 Surface finish Cut Material SCM415 (Alloy steel) Datum reference surface for gear cutting Bore Heat treatment Overall carburizing Back surface of B7 type is machinable due to masking during carburization.

B3 B4 B7

Gear Ratio 3

Module 16

Catalog No. Hand of thread 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 Keyway Threaded hole 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 WidthDepth M Thread size Bending strength Surface durability Bending strength Surface durability MBSA1-4515R [ DXF| DWG | 3D CAD] MBSB1-4515R [ DXF| DWG | 3D CAD] MBSA1-1545L [ DXF| DWG | 3D CAD] MBSB1-1545L [ DXF| DWG | 3D CAD] R 1 45 10 12 25 45 45.34 20 15.03 13.01 9 13 7 30.58 7318' - 41.8 5 M4 M5 B4 0.8642 0.7505 8.475 7.36 0.030.13 0.08 0.07 MBSA1-4515R MBSB1-4515R MBSA1-1545L MBSB1-1545L L 1 15 5 6 13 15 17.35 30 14.4 7.89 7.17 14 7 9.73 2151' - - 4 M4 M4 B3 0.2769 0.2502 2.715 2.454 0.030.13 0.01 0.01 MBSA1.5-4515R [ DXF| DWG | 3D CAD] MBSB1.5-4515R [ DXF| DWG | 3D CAD] MBSA1.5-1545L [ DXF| DWG | 3D CAD] MBSB1.5-1545L [ DXF| DWG | 3D CAD] R 1.5 45 15 18 35 67.5 68 30 22.46 19.5 13 20 10 47.25 7247' 52.3 62.8 7 M5 M6 B4 2.824 2.508 27.69 24.59 0.050.15 0.26 0.25 MBSA1.5-4515R MBSB1.5-4515R MBSA1.5-1545L MBSB1.5-1545L L 1.5 15 8 10 19 22.5 25.99 45 21.16 11.83 10.67 20.3 10 13.55 2120' - - 6 M4 M4 B3 0.9047 0.836 8.872 8.198 0.050.15 0.04 0.03 MBSA2-4515R [ DXF| DWG | 3D CAD] MBSB2-4515R [ DXF| DWG | 3D CAD] MBSA2-1545L [ DXF| DWG | 3D CAD] MBSB2-1545L [ DXF| DWG | 3D CAD] R 2 45 20 22 48 90 90.63 40 30.01 25.99 18 27 14 61.82 7318' 62.8 62.8 9 M6 M6 B4 6.914 6.247 67.8 61.26 0.060.16 0.62 0.61 MBSA2-4515R MBSB2-4515R MBSA2-1545L MBSB2-1545L L 2 15 10 12 26 30 34.54 55 23.78 10.77 9.33 22.5 14 16.46 2151' - 41.8 5 M4 M5 B3 2.215 2.082 21.72 20.42 0.060.16 0.08 0.07 MBSA2.5-4515R [ DXF| DWG | 3D CAD] MBSB2.5-4515R [ DXF| DWG | 3D CAD] MBSA2.5-1545L [ DXF| DWG | 3D CAD] MBSB2.5-1545L [ DXF| DWG | 3D CAD] R 2.5 45 22 25 55 112.5 113.28 45 32.43 27.42 18 28 17 77.83 7251' 62.8 83.3 9 M6 M8 B4 13.25 12.12 129.9 118.9 0.070.17 1 1 MBSA2.5-4515R MBSB2.5-4515R MBSA2.5-1545L MBSB2.5-1545L L 2.5 15 12 15 32 37.5 43.06 70 30.51 14.68 12.84 29 17 21.48 2133' 41.8 52.3 7 M5 M5 B3 4.244 4.041 41.62 39.63 0.070.17 0.16 0.14 MBSA3-4515R [ DXF| DWG | 3D CAD] MBSB3-4515R [ DXF| DWG | 3D CAD] MBSA3-1545L [ DXF| DWG | 3D CAD] MBSB3-1545L [ DXF| DWG | 3D CAD] R 3 45 30 32 65 135 136.03 55 39.94 34.05 22 35 21 92.39 7343' 83.3 103.3 11 M8 M8 B4 23.33 21.55 228.8 211.3 0.080.18 1.8 1.77 MBSA3-4515R MBSB3-4515R MBSA3-1545L MBSB3-1545L L 3 15 18 20 38 45 52 85 38.12 18.67 16.33 36.5 21 26.18 2227' 62.8 62.8 9 M6 M6 B3 7.476 7.184 73.31 70.45 0.080.18 0.25 0.23 MBSA4-4515R [ DXF| DWG | 3D CAD] MBSA4-1545L [ DXF| DWG | 3D CAD] MBSB4-1545L [ DXF| DWG | 3D CAD] R 4 45 80 - 180 - 50 28.85 22.14 - 25 28 124.3 7311' - 110 6-M10 B7 55.31 51.8 542.4 508 0.120.27 4 MBSA4-4515R MBSA4-1545L MBSB4-1545L L 4 15 22 25 52 60 69.24 110 47.51 21.54 18.67 45.5 28 35.91 2215' 62.8 83.3 10 M6 M8 B3 17.72 17.27 173.8 169.4 0.120.27 0.64 0.6 MBSA5-4515R [ DXF| DWG | 3D CAD] MBSA5-1545L [ DXF| DWG | 3D CAD] MBSB5-1545L [ DXF| DWG | 3D CAD] R 5 45 90 - 225 - 60 33.57 25.16 - 28 35 154.88 7311' - 120 6-M10 B7 108 102.2 1059 1002 0.140.34 7.3 MBSA5-4515R MBSA5-1545L MBSB5-1545L L 5 15 28 32 65 75 86.55 135 56.89 24.43 20.83 54 35 42.64 2215' 83.3 103.3 11 M8 M8 B3 34.61 34.05 339.4 333.9 0.140.34 1.2 1.1 MBSA6-4515R [ DXF| DWG | 3D CAD] MBSA6-1545L [ DXF| DWG | 3D CAD] MBSB6-1545L [ DXF| DWG | 3D CAD] R 6 45 110 - 270 - 70 38.28 28.05 - 32 42 186.12 7245' - 140 6-M10 B7 182.9 177.8 1794 1744 0.160.36 12 MBSA6-4515R MBSA6-1545L MBSB6-1545L L 6 15 35 40 78 90 103.13 160 66.39 27.19 23 63 42 52.37 2112' 103.3 123.3 12 M8 M8 B3 58.61 59.28 574.8 581.3 0.160.36 1.9 1.8

Pitch Angle Gear 7134' Pinion 1826'

CAUTION:	With the exception of B7 type gears, 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.
CAUTION:	The products which are hardened by carburizing allow no secondary machining, however, the back surface of B7 type gears are masked during the process so that it is possible to drill and pin on this surface.
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.

	| Home | QTC Quote Request Form | US & Canada Catalog Request Form | International Catalog Request Form | Q420 Index | Recent Ads | Kohara Gear Homepage Quality Transmission Components E-Mail: qtcsupport@qtcgears.com Phone: 516-437-6700 Fax: 800-737-7436 or 516-328-3343
Related Companies: