# Boston Gear (Altra) - YD21-7/8 - Spur Gear, 20.0* pressure angle, 12 DP, 21 teeth, 7/8" finished bore - RS

**Manufacturer:** Boston Gear (Altra)  
**MPN:** `YD21-7/8`

## Specifications

| Attribute | Value |
| --- | --- |
| Brand name | Boston Gear (Altra) |
| Manufacturer name | Boston Gear (Altra) |
| Manufacturer | Boston Gear (Altra) |
| Category | Industrial Controls/Mechanical Power Transmission/Gears & Gear Racks/Gears |
| Extra Product Name | Boston Gear (Altra) - YD21-7/8 - Spur Gear, 20.0* pressure angle, 12 DP, 21 teeth, 7/8" finished bore - RS |
| moq | 1 |
| MPN | YD21-7/8 |
| multiple | 1 |
| qtyInStock | 0 |
| snippet | Spur Gear, 20.0* pressure angle, 12 DP, 21 teeth, 7/8" finished bore |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Allied Electronics | 71839440 |  |  | None | 1 |
| motionindustries.com | 00371831 | 89.36 | 1 | None | 1 |
| us.rs-online.com | 71839440 | 68.24 | 1 | 6 | 1 |

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