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3/4" Steel Split Lock Collar
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3/4" Steel Split Lock Collar – Keyed 2-Piece

Part Number: 2555S
Online Price: $9.95
3/4" Keyed Steel Split Lock Collar – 2-Piece Racing Clamp
Availability: In Stock.

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Description

3/4” Steel Split Lock Collar – Keyed, 2-Piece Clamp for Racing Applications


The 2555S 3/4-Inch Steel Split Lock Collar is a precision-machined, two-piece, two-bolt clamp collar designed for a secure, balanced hold on 3/4” keyed shafts. The split design allows for easy installation without the need to slide it over the end of the shaft, making it ideal for use on fully assembled go-karts, racing lawnmowers, and performance chassis setups.


This collar includes a 1/4" keyway, offering superior torque resistance and alignment on keyed axles or tubing. It's commonly used to lock down hubs, sprockets, brake systems, and steering components, helping reduce flex, misalignment, and unwanted movement during aggressive race conditions.


Common Racing Applications:

  • Secure sprocket hubs and brake hubs on live axles and jackshaft.
  • Limit lateral movement of axle bearings
  • Lock wheel hubs in position to improve handling
  • Clamp steering and chassis components with precision


Lock Collar Specifications:

  • Inside Diameter (ID): .750”
  • Outside Diameter (OD): 1.490"
  • Width: ~0.500"
  • Keyway: 1/4"
  • Material: Steel
  • Design: Two-piece with dual-bolt clamp


Key Features:

  • Two-piece design applies even clamping force without shaft damage
  • Machined steel construction offers strength and durability
  • Keyed for torque stability and slip prevention
  • Versatile across multiple go-kart and mower chassis setups
  • Ideal for 3”/4 keyed axles and jackshaft commonly used in racing applications


Installation Tip: Always confirm axle diameter and keyway size before ordering for best fitment and performance.

FAQ

Q1: What makes this 3/4” steel split collar ideal for racing?

A: Its two-piece design allows for easy installation on pre-assembled setups, while the steel construction provides superior strength under aggressive racing conditions. The 1/4” keyway prevents slippage and improves torque transfer.


Q2: Can I use this collar on a jackshaft or live axle?

A: Yes. This collar is specifically designed for 3/4” keyed shafts, including jackshafts and live axles, making it a popular choice for go-karts, racing lawnmowers, and mini bike builds.


Q3: What are the dimensions of this lock collar?

A:

  • Inside Diameter: 0.750”
  • Outside Diameter: 1.490”
  • Width: ~0.500”
  • Keyway: 1/4”
  • Material: Steel


Q4: How is this different from an aluminum split collar?

A: Steel collars offer greater strength and resistance to deformation under load, making them better suited for high-stress applications. Aluminum collars are lighter but less robust under impact.


Q5: How do I make sure it fits my axle or shaft?

A: Use a digital caliper to measure your shaft’s diameter (should be exactly 0.750”) and ensure the keyway slot is 1/4”. Double-check shaft type (keyed vs. smooth) before ordering.

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