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8554 5/8" Steel Lockcollar
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5/8" One-Piece Steel Lock Collar with Set Screw

Part Number: 8554
Online Price: $1.99
5/8" One-Piece Steel Shaft Lock Collar with Set Screw
Availability: In Stock.

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Description

8554 – 5/8" One-Piece Steel Lock Collar with Set Screw


The 8554 5/8-Inch Steel Lock Collar is a durable, one-piece shaft collar designed to securely position or hold components on a 5/8” shaft. This classic style collar uses a hardened set screw to apply direct pressure, locking the collar firmly in place without the need for shaft disassembly.


Ideal for use in light industrial applications, go-karts, small machinery, or DIY mechanical setups, this 5/8" shaft collar is compact, cost-effective, and easy to install.


Product Specifications:

  • Inside Diameter (ID): 5/8" (0.625")
  • Outside Diameter (OD): 1.127"
  • Width: ~0.500"
  • Set Screw Size: 5/16"-18 x 1/4"
  • Material: Steel
  • Design: One-piece with set screw retention


Key Features:

  • Classic set screw-style shaft collar for secure positioning
  • Compact, low-profile design fits tight spaces
  • Precision-machined for a snug, balanced fit on 5/8" shafts
  • Durable steel construction for long-lasting use
  • Ideal for holding bearings, sprockets, spacers, and pulleys in place
  • Quick and easy to install—perfect for maintenance and repairs


Application Tip:

For the best grip, clean the shaft surface before installation and torque the set screw securely using a quality hex key. For high-speed or high-load applications, consider a two-piece clamp collar for added holding power.

FAQ

Q1: What is this shaft collar used for?

A: This one-piece steel lock collar is used to position, retain, or limit movement of components such as bearings, pulleys, sprockets, and spacers on a 5/8” shaft.


Q2: How is it secured to the shaft?

A: It uses a 5/16"-18 x 1/4" set screw to press directly against the shaft, holding the collar firmly in place.


Q3: What’s the difference between a one-piece and a two-piece collar?

A: One-piece collars are simpler and more compact but require sliding over the end of the shaft. Two-piece collars can be installed without shaft disassembly and offer better clamping force with less shaft damage.


Q4: Is this collar reusable?

A: Yes, if not over-torqued or damaged, this steel collar can be reused multiple times. Be sure to inspect the set screw and collar bore for wear before reinstallation.


Q5: Will this work on a keyed shaft?

A: It will physically fit a 5/8” keyed shaft, but for better torque resistance on keyed shafts, a keyed clamp-style collar is usually preferred.

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