5mmx18mm Drive Cups 4140 Tool Steel for 5mm Shaft and 8mm Dog Bone

Machined from robust 4140 tool steel, these drive cups offer a significant upgrade over their standard counterparts. Our drive cups are designed to minimize wobble and significantly reduce the risk of the cup working itself free. These cups are a significant upgrade over the stock ones, which are notorious for being drilled off-center.

Replacement for: ARA310977, ARAC5062, ARA311144

Weight: 21.1 grams per set

Package Includes:

• 2x Drive Cups
• 4x Grub Screws

Specifications:

• Outer Diameter: 13mm
• Inner Diameter (dog bone): 8mm
• Inner Diameter (shaft): 5mm
• Length: 18mm
• Grub Screw: M5x.1

Installation Tips:

• Thoroughly degrease the parts.
• Apply Loctite #262 or #271 to the set screws.
• Use Loctite #262 or #271 on the cup/shaft joint.
• Allow 24 hours for optimal bonding.
• Incorporate O-rings in the drive cups to eliminate bone play.

Why Choose RamJam Racing?

• Unbeatable Pricing - Delivering superior parts at unbeatable prices
• Precision - Using state of the art manufacturing techniques allows us to hold precise tolerances
• Manufacturer Defect Warranty  -  All parts include a manufacturer defect warranty
• Full customer support - Send us a message!

Due to the nature of the RC hobby and the stresses and high loads pushed through these parts, there is NO WARRANTY for users error.