4T-36990/36920 Tapered Roller Bearing 1988/1922 Inch Taper Bearing GQZ

(Tapered Double Outer) double‑row tapered roller bearing This configuration delivers a wide effective bearing spread, enabling it to handle heavy combined radial/axial loads and significant overturning moments. It can be mounted as a fixed bearing or allowed to float in the housing bore.

GQZ Bearing supplies insulated railway bearings with stable quality for OEM and aftermarket applications worldwide.

• Accommodate heavy radial & axial loads in single direction
• High rigidity and resistance to overturning moments
• Suitable for heavy‑duty, harsh working conditions
• Robust structure for long service life
• Available in single‑row, double‑row (TDO/TDI) and multi‑row designs
• Precision matched cones and cups for stable running
• Ideal for large industrial machinery and heavy equipment

• Heavy Machinery & Mining: Mining equipment, crushers, conveyors, rolling mills
• Rail & Transportation: Railway axle boxes, locomotive gearboxes, heavy‑duty vehicle axles
• Industrial Gearboxes: High‑torque gear drives, reducers, power transmission units
• Construction Equipment: Excavators, bulldozers, crane slew bearings
• Marine & Offshore: Propulsion systems, winches, heavy marine gearboxes
• Aerospace & Automotive: Aircraft landing gear, heavy truck wheel ends, transmission assemblies

• Strict inspection of insulation layer and dielectric strength
• Stable batch production for railway projects
• OEM and customized solutions supported
• Competitive factory pricing for bulk buyers
• Technical support for traction motor bearing selection