■材質:S45C（JIS G 4051）
■歯形、精度:並歯、JISN8級（旧JIS4級）
■圧力角:20°
■表面処理:黒染め
■歯面仕上:切削
■穴径公差:JIS H7級
| 製品コード | モジュール | 歯数 | ピッチ円直径 | 外径 | 歯幅 | 穴径 | 備考 |
|---|---|---|---|---|---|---|---|
| BSM1020 | 1.0 | 20 | 20 | 21.4 | 6 | 6 | |
| BSM1220 | 1.25 | 20 | 25 | 26.7 | 6 | 8 | |
| BSM1520 | 1.5 | 20 | 30 | 32.1 | 8 | 10 | |
| BSM2020 | 2.0 | 20 | 40 | 42.8 | 12 | 12 | |
| BSM2520 | 2.5 | 20 | 50 | 53.5 | 14 | 15 | |
| BSM3020 | 3.0 | 20 | 60 | 64.2 | 15 | 15 | |
| BSM3520 | 3.5 | 20 | 70 | 74.9 | 18 | 20 | |
| BSM4020 | 4.0 | 20 | 80 | 85.7 | 18 | 20 | |
| BSM5020 | 5.0 | 20 | 100 | 107.1 | 22 | 25 | |
| BSM6020 | 6.0 | 20 | 120 | 128.5 | 28 | 30 | |
| BSM1025 | 1.0 | 25 | 25 | 26.4 | 6 | 6 | |
| BSM1225 | 1.25 | 25 | 31.25 | 33 | 7 | 8 | |
| BSM1525 | 1.5 | 25 | 37.5 | 39.6 | 8 | 10 | |
| BSM2025 | 2.0 | 25 | 50 | 52.8 | 12 | 12 | |
| BSM2525 | 2.5 | 25 | 62.5 | 66 | 15 | 15 | |
| BSM3025 | 3.0 | 25 | 75 | 79.2 | 18 | 15 | |
| BSM3525 | 3.5 | 25 | 87.5 | 92.4 | 22 | 18 | |
| BSM4025 | 4.0 | 25 | 100 | 105.7 | 22 | 18 | |
| BSM5025 | 5.0 | 25 | 125 | 132.1 | 28 | 25 | |
| BSM6025 | 6.0 | 25 | 150 | 158.5 | 35 | 30 | |
| BSM1030 | 1.0 | 30 | 30 | 31.4 | 7 | 8 | |
| BSM1230 | 1.25 | 30 | 37.5 | 39.3 | 8 | 10 | |
| BSM1530 | 1.5 | 30 | 45 | 47.1 | 10 | 12 | |
| BSM2030 | 2.0 | 30 | 60 | 62.8 | 14 | 16 | |
| BSM2530 | 2.5 | 30 | 75 | 78.5 | 18 | 18 | |
| BSM3030 | 3.0 | 30 | 90 | 94.2 | 22 | 22 | |
| BSM3530 | 3.5 | 30 | 105 | 110 | 22 | 25 | |
| BSM4030 | 4.0 | 30 | 120 | 125.7 | 28 | 28 | |
| BSM5030 | 5.0 | 30 | 150 | 157.1 | 35 | 35 |
