Value Collection MSC67552802X Taper Pin Size 9 Steel

Product Description

The VALUE COLLECTION MSC67552802X is a Size 9 steel taper pin manufactured to ANSI/ASME B18.8.2 standards. Taper pins are precision-machined cylindrical fasteners with a slight taper along their length, used to secure hubs, collars, and other components to shafts or to align mating parts in a fixed position. This pin is machined from C-12L14 steel and left uncoated. The small end diameter measures 0.539 inches and the large end diameter measures 0.591 inches, giving a controlled taper that self-locks under load. Overall length is 2.5 inches. Machinists, millwrights, and maintenance technicians install these in mechanical assemblies where precise, removable positioning is required.

Size 9 taper pins are used across a range of light-to-medium industrial and mechanical applications including machine tool assemblies, gear hubs, pulley and sprocket mountings, and shaft collars. The ANSI/ASME B18.8.2 standard governs dimensional tolerances, making this pin a direct fit in any hole reamed to the corresponding taper pin reamer size. Minimum diameter tolerance is -0.0007 inches and maximum diameter tolerance is 0.0013 inches, ensuring consistent fit across production quantities.

Key Features

• ANSI/ASME B18.8.2 compliant for standardized dimensional interchangeability
• C-12L14 steel construction provides good machinability and adequate strength for general mechanical assemblies
• Uncoated finish suitable for dry or lubricated mechanical environments
• Self-locking taper geometry resists backing out under vibration and load
• Tight diameter tolerances (-0.0007 inches / +0.0013 inches) for consistent press fit
• Sold individually, compatible with standard taper pin reamers for Size 9 holes

Compatibility

Designed as a standard ANSI/ASME B18.8.2 Size 9 taper pin replacement or new-installation fastener for any mechanical assembly requiring a Size 9 taper-reamed hole with a small end diameter of 0.539 inches and a large end diameter of 0.591 inches.

Installation Notes

Taper pins are installed by machinists or millwrights using a taper pin reamer to prepare the mating hole, then driving the pin with a hammer or press until seated. Always de-energize and lock out the machine before servicing any assembly containing taper pins. Do not force an oversized pin into an under-reamed hole, as this can crack the hub or distort the shaft. Removal is accomplished by driving the small end out from the large end side using a punch.