A-Drive 40:90 Drive Shaft Key Stock

$ 4.99
SKU: 82135FA
UPC: 013964212402

In stock


Free Shipping

Free Shipping

BH-USA offers free shipping for retail customers on select items. Products eligible for free shipping will be shipped via UPS Ground. We offer expedited services for those individuals that require a more time-sensitive delivery time. If you add any items that are not free shipping, the cart will calculate and display a shipping price based on ONLY the items that are not free shipping. Whenever free shipping is available, it will appear above the "Add to Cart" button on the product page.



BH-USA has partnered with UPS to offer Ground, Next Day Air, 2nd Day Air, and 3 Day Select services to our customers. In order to ship with these methods, the order must meet UPS's requirements.


Your order will be shipped via the most cost-effective method possible. All shipping and handling charges are the responsibility of the customer. Additionally, they are responsible for any delivery issues that may hinder delivery. In such cases, extra fees can apply, such as residential delivery fees.

Click the button below to learn more about our ordering and shipping policies.

Our Shipping Partners shipping modal logos


A-Drive 40:90 Drive Shaft Key Stock

The A-Drive 40:75 Drive Shaft Key Stock slides into the slot on the double worm reducer gearbox where the drive pipe comes into the gearbox. Replacement part for all 40:90 enclosed gearboxes. Measures 3 1/2 in. L x 5/16 in. W x 5 /16 in. H. Made from hardened, plated steel and cut to length for the input size.

What is a key stock?

Key stock is a small metal block or wedge inserted between a shaft and the hub of a pulley, gear, sprocket, or another rotating power device. It provides driving torque and prevents movement. One part of the key fits into a precut slot in the shaft known as a key seat. The remainder slides into a groove in the hub called a keyway.

Product Overview

  • Fits all A-Drive 40:90 double worm gear reducer gearboxes
  • Made from hardened, plated steel
  • Fits snuggly into the key stock groove for the drive pipe
  • Measures 3 1/2 in. L x 5/16 in. W x 5/16 in. H