# Boston Gear (Altra) - YB20 - Spur Gear, 20* pressure angle, 16 DP, 20 teeth, plain bore - Allied Electronics & Automation, part of RS Group

**Manufacturer:** Boston Gear (Altra)  
**MPN:** `YB20`

The Boston Gear YB20 Spur Gear is a steel, inch-based gear with a 16 pitch, 0.625" bore, 1.375" outside diameter, and 0.750" face width. It features 20 teeth and a 20-degree pressure angle, providing a lower contact ratio and higher load capacity. With a diametral pitch of 16, this gear balances torque transfer and speed control. Made from low carbon steel, it is suitable for applications where high hardness and strength are not required.

## 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) - YB20 - Spur Gear, 20* pressure angle, 16 DP, 20 teeth, plain bore - Allied Electronics & Automation, part of RS Group |
| moq | 1 |
| MPN | YB20 |
| multiple | 1 |
| qtyInStock | 0 |
| SKU | 71839137 |
| snippet | Spur Gear, 20* pressure angle, 16 DP, 20 teeth, plain bore |

## Distributor availability

| Distributor | SKU | Price (USD) | Qty | Stock | MOQ |
| --- | --- | --- | --- | --- | --- |
| Allied Electronics | 71839137 |  |  | None | 1 |
| motionindustries.com | 00371715 | 43.36 | 1 | None | 1 |
| us.rs-online.com | 71839137 | 37.83 | 1 | 4 | 1 |

---
Structured data: `/python/html6/product/500/204000000/204049500/part_--YB20---BostonGearAltra--c4f59abc02.json`  
Search API: https://www.dataalchemy.com/api/  
MCP server: https://www.dataalchemy.com/mcp