Timing pulley S8M type
Brand :
MITSUBOSHI_BELT
Caution
- MISUMI does not support custom orders.
- Workpieces with shaft bore processing are delivered with the flange caulked. Pilot hole products are delivered without caulking the flange.
We do not sell flanges as single items. - The product images are representative only. Specifications may vary depending on the part number.
Product Description
Easily specify shaft bore type and diameter. MISUMI drills the holes of Mitsuboshi Belting pulleys without requiring drawings and delivers them.
INDEX
Drawing
Standard tooth profile
Basic specifications of timing pulley S8M type
Standard pulley shape
Pulley dimension table specified by standard pulley width
| Nominal width | Belt width in use (mm) | Pulley width LA(mm) | Overall Width LB (mm) | Overall Width LW (mm) | Face Width W (mm) | Flange Step Width H (mm) | Undercut Depth G (mm) |
|---|---|---|---|---|---|---|---|
| 0150 | 15 | 24 | 40 teeth or fewer: 39 | 47 | 17 | 3.5 | (7) |
| 44 teeth or more: 44 | |||||||
| 0250 | 25 | 35 | 40 teeth or fewer: 50 | 58 | 28 | (12) | |
| 44 teeth or more: 55 | |||||||
| *1 0300 | 30 | 40 | 40 teeth or fewer: 55 | - | 33 | - | |
| 44 teeth or more: 60 | |||||||
| 0400 | 40 | 51 | 40 teeth or fewer: 66 | 74 | 44 | (17.5) | |
| 44 teeth or more: 71 | |||||||
| *2 0600 | 60 | 72 | 40 teeth or fewer: 87 | 95 | 65 | (26) | |
| 44 teeth or more: 92 |
- *1 For belt width 30 mm, only steel materials with 60 teeth or fewer are available in the lineup.
- *2 For belt width 60 mm, the lineup is available only from 26 teeth.
Pulley dimension table specified by standard number of pulley teeth
| Number of pulley teeth | Pulley shape | Material | Pitch diameter PD (mm) | Outer diameter OD (mm) | Hub width K (mm) | Hub diameter D (mm) | Shaft hole diameter d (mm) | Keyway diameter E (mm) | Compatible flange size | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min | max | Thickness | F | M | ||||||||
| 18 *1 | A/B | Steel | 45.84 | 44.46 | 15 | 32 | 12 | 20 | - | F-23 | 54 | 36 |
| 19 *1 | 48.38 | 47.01 | 35 | 12 | 22 | F-23 | 57 | 39 | ||||
| 20 | 50.93 | 49.56 | 36 | 12 | 22 | F-23 | 60 | 40 | ||||
| 21 | 53.48 | 52.10 | 40 | 12 | 24 | F-23 | 62 | 44 | ||||
| 22 | 56.02 | 54.65 | 41 | 12 | 25 | F-23 | 65 | 45 | ||||
| 24 | 61.12 | 59.74 | 46 | 12 | 28 | F-23 | 70 | 50 | ||||
| 25 | 63.66 | 62.29 | 48 | 16 | 29 | F-23 | 72 | 52 | ||||
| 26 | 66.21 | 64.84 | 51 | 16 | 30 | F-23 | 75 | 55 | ||||
| 28 | 71.30 | 69.93 | 55 | 16 | 34 | F-23 | 80 | 60 | ||||
| 30 | 76.39 | 75.02 | 60 | 16 | 36 | F-23 | 85 | 65 | ||||
| 32 | 81.49 | 80.12 | 65 | 16 (20) | 38 | F-23 | 90 | 70 | ||||
| 34 | 86.58 | 85.21 | 70 | 16 (20) | 42 | F-23 | 95 | 75 | ||||
| 36 | 91.67 | 90.30 | 75 | 16 (20) | 45 | F-23 | 100 | 80 | ||||
| 38 | 96.77 | 95.39 | 80 | 20 (20) | 48 | F-23 | 105 | 85 | ||||
| 40 | 101.86 | 100.49 | 85 | 20 (25) | 50 | F-23 | 110 | 90 | ||||
| 44 | 112.05 | 110.67 | 20 | 90 | 20 (25) | 56 | F-23 | 121 | 101 | |||
| 48 | 122.23 | 120.86 | 100 | 20 (25) | 62 | F-23 | 131 | 111 | ||||
| 50 | 127.32 | 125.95 | 100 | 20 (25) | 62 | F-23 | 136 | 116 | ||||
| 60 | 152.79 | 151.42 | 100 | 20 (25) | 62 | F-23 | 161 | 141 | ||||
W shape Standard Stock & Made-to-Order Product Compatibility Table
| - | Belt width in use | ||||
|---|---|---|---|---|---|
| 15 mm | 25 mm | 40 mm | 60 mm | ||
| Number of teeth | 72 | Standard stock item | Standard stock item | Standard stock item | Standard stock item |
| 84 | Made-to-order item | Standard stock item | Standard stock item | Standard stock item | |
| 96 | Made-to-order item | Standard stock item | Standard stock item | Standard stock item | |
| 120 | Made-to-order item | Standard stock item | Standard stock item | Standard stock item | |
| 144 | Made-to-order item | Made-to-order item | Made-to-order item | Made-to-order item | |
Shaft Bore Specification Table
[ ! ]No tapped holes or set screws.
[ ! ]For Shape A pulley,
the screw holes are set at around 120°
to keep away from peaks.
the screw holes are set at around 120°
to keep away from peaks.
[ ! ]No tapped holes or set screws.
[ ! ]For Shape A pulley,
the screw holes are set at around 120°
to keep away from peaks.
the screw holes are set at around 120°
to keep away from peaks.
[ ! ]No tapped holes or set screws.
[ ! ]B type only compatible
[ ! ]No tapped holes or set screws.
[ ! ]No tapped holes or set screws.
[ ! ]A type only compatible
[ ! ]No tapped holes or set screws.
[ ! ]Q - Y (d) ≥ 2
[ ! ]R - Y (d) ≥ 2
[ ! ]No tapped holes or set screws.
[ ! ]Q - Y (d) ≥ 2
[ ! ]R - Y (d) ≥ 2
[ ! ]A type only compatible
[ ! ]No tapped holes or set screws.
[ ! ]Q - R ≥ 2
[ ! ]R - WB (d) ≥ 2
[ ! ]No tapped holes or set screws.
[ ! ]Q - R ≥ 2
[ ! ]R - WB (d) ≥ 2
| Number of teeth, tooth profile, nominal width, pulley shape | — | Surface treatment | — | Shaft Bore Specifications – Inner Diameter | — | Z | — | J | — | Q | — | R | — | S | — | T | |
| (Shaft bore specification: H/T/P/TK/N/K/C) | P20S8M0150B | — | BL | — | T-12 | ||||||||||||
| (Shaft Bore Specification: V, F) | P25S8M150B | — | NA | — | V-15 | — | Z18 | — | J18 | ||||||||
| (Shaft Bore Specification: Y, WB) | P50S8M0150A | — | NI | — | Y-50 | — | Q58 | — | R58 | — | S8 | — | T10 |
| Number of teeth | Tooth profile | Nominal width | Pulley Shape | Surface treatment | Pulley shape | |||||||||||||||||
| A | B, W | |||||||||||||||||||||
| Shaft Bore Specification: 1 mm Increments / Selection | Shaft Bore Specification: 1 mm Increments / Selection | |||||||||||||||||||||
| H (d) Round Hole | P (d)· T (d) Round hole + Tapped hole | K (d) Keyway· N (d)· TK (d) Keyway + tapped | C (d) Keyway + tapped | V Stepped hole | Y Both Sides Stepped Hole· | WB Two-stepped Hole | H (d) Round Hole | P (d)· T (d) Round hole + Tapped hole | K (d) Keyway·N (d)· TK (d) Keyway + tapped | C (d) Keyway + tapped | V, F Stepped hole | |||||||||||
| V (d) | Z Z-d ≥ 2 | J (0.1 mm increments) | Y (d), WB (d) | Q, R | S· T (0.1 mm increments) | V (d)· F (d) | Z Z-d ≥ 2 | J (0.1 mm increments) | ||||||||||||||
| P | 18 | S8M | 0150 0200 0300 | A B | NA (base material) BL (black oxide coating) NI (Electroless nickel plating) | 12-20 | 12-20 | 12-20 | 12-20 | 12 to 28 | 14 to 30 | 3.0 ≤ J ≤ LA-3.0 | 12 to 28 | 14 to 30 | S+T ≤ LA-3 | 12-20 | 12-20 | 12-20 | 12-20 | 12 to 24 | 14 to 26 | 3.0 ≤ J ≤ LB-3.0 |
| 19 | 12 to 22 | 12 to 22 | 12 to 22 | 12-20 | 12 to 31 | 14 to 33 | ||||||||||||||||