Tunneling Machine Cutter Bearing
Sealed heavy-duty roller bearing for mounting disc cutters on tunnel boring machine cutterheads under heading 8430. Rated for extreme shock loads and contamination. Part of 8431.49.90.34 tunneling parts.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If standard industrial roller bearings
Bearings not specialized for mining classify generally in 8482.
If for 8427 forklifts
Forklift mast bearings use different subheading under 8427 parts.
If for mining trucks
Heavy-duty bearings for mine vehicles go with vehicles in 8708.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include dynamic load ratings and IP68 sealing certs; prove exclusive TBM use vs general industrial; watch Section 232 on steel content
Related Products under HTS 8431.49.90.34
Micro-TBM Cutter Insert
Miniature carbide insert for small-diameter micro tunnel boring machines used in utility tunneling under heading 8430. Designed for soft ground and rock up to 48" diameter. Part of 8431.49.90.34.
Rippershark Cutter Chain Link
Specialized link in cutter chain system for Rippershark-style rock cutting attachments on tunneling equipment of heading 8430. Includes pick retention features. Classified under 8431.49.90.34.
Hard Rock TBM Center Row Cutter
V-shaped twin-disc cutter for center row of hard rock tunnel boring machine cutterheads under heading 8430. Balances cutting loads in abrasive formations. Part of 8431.49.90.34 tunneling machinery.
Longwall Miner Roof Support Pick
Heavy pick for temporary roof support roadheaders in longwall coal mining systems of heading 8430. Clears strata above shearer path. Classified in 8431.49.90.34 as coal/rock cutter part.
Coal Plough Cutting Edge
Replaceable hardened steel edge for coal ploughs used in longwall mining systems under heading 8430. Profiles coal face while conveyor advances. Covered by 8431.49.90.34 as coal cutter part.
Tungsten Carbide Tunneling Cutter Pick
A replaceable tungsten carbide tipped cutting pick designed specifically for rock cutters and tunnel boring machines in heading 8430. It features a forged steel shank with a brazed carbide insert for breaking hard rock formations during tunneling operations. Classified under 8431.49.90.34 as a part of coal or rock cutters and tunneling machinery.