Estimated class examples
50–85
Based on the sample shipments below
Gearbox freight class commonly ranges from Class 50 to Class 85 in the examples below.
Dense boxed reducer
Class 50
Palletized gear drive
Class 60
Crated large gearbox
Class 85
These are density-based examples. Your final estimate depends on the finished packaged dimensions, total weight, stackability, fragility, value, and handling requirements for the gearbox shipment.
Estimated class examples
50–85
Based on the sample shipments below
Main class factor
Packaged density
Final dimensions and total weight
Assembly effect
Flat-packed ships denser
Assembled gearboxes occupy more space
Carrier review
Stackability and damage risk
Custom, fragile, or glass-front gearboxes
Gearboxes density calculator
Example palletized gearbox shipment loaded. Adjust the dimensions or weight to calculate your gearbox freight class.
Your result
Cubic feet
40.00
Density
37.50
lb/cu ft
Estimated freight class
55
Example density-based estimate. Update any field to calculate your shipment.
Gearboxes shipment comparison
Gearboxes are typically dense, but housings, shafts, couplings, guards, mounting feet, oil preparation, and crate size can change the finished cube and handling profile. Compact reducers often ship efficiently, while large industrial gear drives may need reinforced skids and no-top-load handling.
| Gearboxes shipment | Typical packaging | Density tendency | Stackability | Planning note |
|---|---|---|---|---|
| Compact speed reducers | Reinforced carton or small skid | Very high | Usually stackable | Immobilize shafts and protect seals, keys, and mounting faces. |
| Palletized gear drives | Bolted to a reinforced pallet or skid | Very high | Limited | Distribute concentrated weight and protect protruding shafts. |
| Large industrial gearbox | Heavy skid or full crate | High | Usually non-stackable | Confirm lifting points, oil preparation, and center of gravity. |
| Gearbox with motor or coupling | Integrated skid with blocked accessories | High | Limited | Secure guards, couplings, motors, and loose hardware separately. |
gearbox shipping options
The right service depends on gearbox size, packaging, stackability, and handling needs.
| Gearboxes shipment | Common shipping option |
|---|---|
| Boxed compact reducer on a pallet | Standard LTL |
| Palletized industrial gear drive | Heavy LTL |
| Crated gearbox with exposed shafts | Crated LTL |
| Oversized gearbox or integrated drive package | Specialized or dedicated service |
Large, irregular, non-stackable, unusually valuable, or specially handled gearbox shipments may need carrier review before booking.
Gearboxes shipment examples
These examples use packaged outside dimensions and the site’s density-to-class chart. They are examples only, not fixed classes for all gearbox shipments.
Compact enclosed speed reducer
36 × 30 × 24 in
Packaged weight: 900 lb
Estimated class
Density-based
50
Industrial gearbox bolted to a skid
48 × 40 × 36 in
Packaged weight: 1500 lb
Estimated class
Density-based
55
Large housing with shafts and guards
60 × 48 × 48 in
Packaged weight: 1800 lb
Estimated class
Density-based
65
Calculate your actual shipment
The calculator returns cubic feet, pounds per cubic foot, and a density-based freight class estimate for your gearbox shipment.
Freight classes shown on this page are density-based estimates for shipment planning. Actual classification may also depend on value, handling requirements, liability, stowability, dimensions, and other commodity-specific factors. Confirm the final freight class with your carrier, broker, or official NMFC resources before shipping.
NMFC® is a registered trademark of the National Motor Freight Traffic Association, Inc. FreightClassCalculator.tools is an independent calculator and is not affiliated with, endorsed by, or licensed by NMFTA.