Custom 304 Stainless Steel Split Spider Hub

Custom 304 Stainless Steel Split Spider Hub

JG manufactures the Custom 304 Stainless Steel Split Spider Hub for heavy-duty industrial clamping, drive and mechanical assemblies. This large hub is machined from solid 304 stainless steel round bar and supplied as a matched two-piece assembly. The manufacturing sequence is critical: all turning, boring, milling, drilling and threading operations are completed while the hub remains whole, and the finished hub is then separated by wire EDM cutting.

Product Overview

The Custom 304 Stainless Steel Split Spider Hub is produced to drawing AOS05HS32S0001. Its nominal finished dimensions are 13.00 inches outside diameter, 6.25 inches bore diameter and 8.50 inches axial length. The component includes two opposed relief windows, stepped side features and paired bolt locations with clearance holes and deep 1-1/4-7 UNC threads.

Manufacturing Process

1. 304 stainless steel round-bar verification and sawing
2. Large-diameter CNC turning and face machining
3. Precision boring of the 6.25-inch central bore
4. CNC milling of opposed relief windows and external features
5. Deep drilling, counterboring and 1-1/4-7 UNC tapping
6. Complete dimensional inspection while the hub is whole
7. Wire EDM splitting into two matched halves
8. Cut-surface deburring, paired-part identification and final inspection
9. Cleaning, corrosion protection and export packaging

Complete Machining Before Wire EDM Splitting

The main engineering value of the Custom 304 Stainless Steel Split Spider Hub is the controlled process sequence specified on the drawing. Machining the bore, outside diameter, faces, windows and bolt features before parting preserves a common centerline and consistent datum relationships. Wire EDM then produces a narrow, controlled split with minimal mechanical cutting force. The two halves remain permanently identified as a matched set.

Large Bore Accuracy and Dimensional Stability

Machining a 6.25-inch bore through a heavy 304 stainless steel hub requires rigid workholding, balanced stock removal and controlled cutting conditions. Heat generation and residual stress can affect roundness and coaxiality, especially when the finished ring is divided. JG applies staged roughing, stress-conscious tool paths, finish boring and inspection before and after splitting to verify that the Custom 304 Stainless Steel Split Spider Hub assembles consistently.

Product Features

• Solid AISI 304 stainless steel construction
• Large 13-inch outside diameter and 6.25-inch precision bore
• Complete CNC machining before separation
• Low-force, narrow-kerf wire EDM splitting
• Matched and traceable hub halves
• Deep 1-1/4-7 UNC internal threads
• Corrosion resistance for demanding industrial environments
• Material certificates and dimensional reports available
• OEM manufacturing according to customer drawings

Applications

• Heavy-duty clamping and shaft assemblies
• Industrial drive systems
• Large processing and handling machinery
• Corrosion-resistant mechanical equipment
• Custom OEM split-hub assemblies

Deep Hole and 1-1/4-7 UNC Thread Machining

The matched fastener system combines top-half clearance holes and bottom-half threaded holes. Drawing features include 1.281-inch diameter holes to a 2.50-inch depth, 1.109-inch tap-drilled holes to a 3.21-inch depth and 1-1/4-7 UNC threads to a 2.50-inch depth. Accurate hole entry, perpendicularity, thread depth and chip removal are essential for smooth bolt engagement and dependable clamping force.

Technical Specifications

Quality Control

Quality control for the Custom 304 Stainless Steel Split Spider Hub focuses on material traceability, bore size and roundness, outside diameter, face parallelism, hole position, thread depth and paired-half alignment. The internal threads are checked using appropriate gauges, and both halves are assembled after wire EDM cutting to confirm that the bore, outside profile and bolt system remain correctly matched.

Large Stainless Steel CNC Machining from JG

JG supplies the Custom 304 Stainless Steel Split Spider Hub from raw-material procurement through large CNC machining, deep-hole threading, wire EDM parting and final paired inspection. Our process controls the relationships between the bore, outside diameter, mounting holes and split faces, giving OEM customers a reliable matched assembly supported by material and inspection documentation.