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Graco 112551 Qd Taper Lock Bushing

The Graco 112551 QD Taper-Lock Bushing provides secure, precise mounting of pulleys or sheaves on shafts for Graco belt-drive systems. Ideal for maintenance and replacements.

Key Features & Applications:

  • Quick-disconnect, keyless taper-lock design
  • Ensures precise alignment and secure fit
  • Compatible with Graco belt-drive assemblies and industrial sprayers
  • Easy installation and removal for maintenance

$443.84
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Overview – Graco 112551 QD Taper‑Lock Bushing

The Graco 112551 is a genuine OEM QD Taper‑Lock Bushing designed for secure mounting of pulleys or sheaves on shafts in belt‑drive assemblies. It provides a tight, key‑less connection to ensure proper alignment and shaft coupling.

Compatible Machines

This bushing is used in Graco machines that incorporate taper‑lock or QD bushings in their drive systems. Always check your machine’s parts list to confirm fitment.

  • Graco belt‑drive pump assemblies that specify a QD taper‑lock bushing for pulley mounting
  • Graco finishing / spray equipment with sheaves mounted via taper‑lock bushings
  • Industrial Graco machines where the parts list shows item #112551 under shaft‑mounting components

Technical & Usage Details

Specification Detail
Part Number 112551
Type QD / Taper‑Lock Bushing
Applications Mounting pulleys or sheaves on shafts in Graco belt‑drive systems
Manufacturer Graco

Installation & Fit‑Up Tips

  • Verify your machine’s model and serial number and check the parts diagram to ensure 112551 is correct.
  • Check shaft diameter, pulley bore and key‑way (or key‑less) specifications before replacing.
  • Clean shaft and bore surfaces, remove old bushing if present, and inspect for wear.
  • Follow Graco’s recommended tightening procedure for the taper‑lock bushing to ensure proper clamping.
  • Using the proper OEM bushing ensures alignment, performance and maintains warranty compliance.

Frequently Asked Questions

A QD (Quick‑Disconnect) taper‑lock bushing allows a pulley or sheave to be mounted onto a shaft by tightening bolts. The bushing clamps the shaft and bore together without needing a key‑way, offering precise alignment and easy removal.

It’s not recommended. The 112551 is engineered specifically for the dimensional and alignment requirements of certain Graco machines. Using an incorrect bushing may cause misalignment or shaft damage.

Review your machine’s parts manual or exploded diagram and search for part number “112551”. If listed under the drive or pulley assembly, then 112551 is the correct part for that location.

For further assistance or fitment confirmation, please consult your machine’s service manual or contact an authorised Graco parts distributor.

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