316388A High-Capacity Cylindrical Roller Bearing

Optimized Roller Profile: Controlled roller end contouring prevents edge stress concentrations and extends operational life.
High Thermal Endurance: Specially heat-treated rings maintain hardness and geometry under elevated industrial operating temperatures.
Superior Radial Rigidity: Resists heavy shock loads and shaft deflection in high-torque gearboxes.
Low Frictional Drag: Precision-ground raceways ensure energy-efficient operation and low heat generation.

Technical Data

Technical Parameter	Metric Value
Inner Bore Diameter (d)	180.000 mm
Outer Diameter (D)	406.420 mm
Total Width (B)	171.000 mm
Precision Standard	ISO P0 / ABEC-1

Product Specifications

Specification	Details
Item Type	Heavy Industrial Cylindrical Roller Bearing
Model Number	316388A
Bearing Design	Multi-Row / High-Capacity Cylindrical Roller
Material	Top-Tier GCr15 High-Carbon Chrome Steel
Cage Material	Heavy-Duty Machined Brass Cage

Product Introduction

The 316388A is an ultra-heavy-duty cylindrical roller bearing engineered for continuous, high-stress operations in heavy industrial machinery. With dimensions of 180 x 406.42 x 171 mm, this bearing is designed to deliver exceptional radial stiffness and long fatigue life under severe working conditions. Manufactured from top-tier, vacuum-degassed bearing steel with refined heat treatment, the 316388A maintains dimensional stability and smooth rotation even under thermal stress and heavy shock loads. It is a critical replacement item for global industrial machinery rebuilders and heavy OEM equipment manufacturers.

Applications

Metallurgical rolling mill stand drive shafts and roll necks.
Heavy construction excavation equipment and mining machinery.
Industrial drive gearboxes and heavy rotary equipment.

FAQ

Q: What is the benefit of the machined brass cage in the 316388A?
A: Machined brass cages provide superior strength, lower friction, and excellent lubricant retention under high vibration and heavy load conditions.
Q: Do you offer inspection reports prior to shipment?
A: Yes, every unit undergoes full CMM dimension checks, surface hardness testing, and ultrasonic inspection with reports provided to B2B buyers.

OEM & Custom Service

Custom B2B solutions include tailored radial internal clearances, specialized surface coatings, custom laser engraving, and ocean-freight crate packing.

Packing & Delivery

Thoroughly treated with industrial rust inhibitor, hermetically sealed in heavy-gauge VCI film, and bolted into reinforced wooden crates for safe global delivery.