10311T Heavy-Duty Forklift Mast Bearing

Extreme Shock Absorption: The ultra-thick outer ring profile prevents deformation and cracking under sudden, heavy drop loads.
Optimized Mast Tracking: Precision-ground outer diameter ensures smooth, bind-free vertical travel within the forklift mast channel.
Severe Environment Protection: Integrated heavy-duty seals block out warehouse dust, metallic debris, and moisture.
High Load Capacity: Internal geometry maximizes the number of rolling elements to support massive radial payloads.

Product Specifications

Specification	Details
Item Type	Forklift Mast Roller Bearing
Model Number	10311T
Bearing Design	Thick-Walled Roller / Mast Guide
Material	High-Purity GCr15 Bearing Steel
Sealing	Heavy-Duty Industrial Seals

Technical Data

Technical Parameter	Metric Value
Inner Bore Diameter (d)	55.00 mm
Outer Diameter (D)	151.00 mm
Total Width (B)	45.00 mm
Precision Standard	Industrial P0 / P6

Product Introduction

The 10311T is a specialized, heavy-duty forklift mast roller bearing engineered to dominate the grueling environments of industrial material handling. With robust dimensions of 55 x 151 x 45 mm, this bearing features an exceptionally thick outer ring designed specifically to roll directly within the steel channels of a forklift mast. Produced in our high-end industrial components division, the 10311T is forged from vacuum-degassed, high-carbon chromium steel and subjected to advanced induction hardening. This creates a resilient, wear-resistant rolling surface capable of absorbing massive, sudden shock loads during heavy lifting operations. Our rigorous quality control ensures this critical safety component delivers flawless, low-friction mast guidance, preventing binding and extending the operational life of heavy logistics equipment.

Applications

Main mast guide rollers in medium to heavy-duty industrial forklifts.
Carriage rollers in telehandlers and reach trucks.
Heavy-duty automated guided vehicles (AGVs) and vertical lifts.

Equivalent Models

10311-T

Cross Reference

Standard Material Handling Profile: 10311T

FAQ

Q: Why is the outer ring so much thicker than a standard bearing?A: Forklift mast bearings function as track rollers. The extra thickness provides the structural integrity needed to roll directly against the heavy steel mast without an external housing.
Q: Can these withstand outdoor logistics yards?A: Yes, they are equipped with robust seals and high-performance grease specifically designed to resist moisture and debris found in outdoor lumber and shipping yards.

OEM & Custom Service

We supply leading material handling OEMs with highly customized mast roller solutions, including specialized outer ring profiling (flat, crowned, or beveled) to perfectly match proprietary mast rail designs.

Packing & Delivery

Due to their dense weight, these bearings are heavily oiled, sealed in thick polymer moisture barriers, and tightly packed in reinforced, custom-fitted wooden export crates to ensure they arrive in pristine condition, ready for heavy assembly.