F-624126 40X61.5X17.5mm auto gearbox bearings

Photos of F-624126:

Product Description

The F-624126 is a precision‑engineered single‑row cylindrical roller bearing supplied without an inner ring (also known as an “inner‑ring‑less” or “roller and cage assembly” design). This configuration is specifically developed for automotive gearbox and transmission applications where the shaft itself serves as the inner raceway, enabling a more compact and lightweight assembly while maintaining high radial load capacity and rigidity.

Cylindrical roller bearings are renowned for their high radial load‑carrying capability due to the line contact between rollers and raceways. The F‑624126 takes this a step further by omitting the inner ring, allowing the hardened and ground shaft journal to act directly as the rolling surface. This design reduces the overall bearing footprint, simplifies shaft design, and often improves lubrication efficiency – making it an ideal choice for modern, space‑constrained gearbox layouts.

Manufactured from GCr15 chrome steel with precision‑ground rollers and a robust steel cage, this bearing delivers excellent wear resistance, dimensional stability, and fatigue strength under high‑torque and high‑speed conditions. The open design (without seals) facilitates oil‑bath or forced‑circulation lubrication, which is standard in automotive transmissions. Precision grades P0, P6, and P5 are available to suit various OEM tolerance requirements.

Key Features & Specifications

Why Choose This Bearing?

• Space‑Saving & Lightweight – The absence of an inner ring allows a more compact bearing arrangement and reduces overall assembly weight, critical for fuel‑efficient vehicle design.

• High Radial Load Capacity – Cylindrical roller‑to‑raceway line contact provides exceptional stiffness and load‑carrying ability, ensuring reliable performance under heavy gear‑mesh loads.

• Simplified Shaft Design – The shaft journal is machined and ground to bearing quality, eliminating the need for a separate inner ring fit and reducing the number of components.

• Flexible Precision Options – Available in P0, P6, and P5 accuracy grades to match different application requirements, from standard automotive to high‑precision drivetrain assemblies.

Common Applications

• Automotive gearboxes and manual transmissions – support shafts and gear positions

• Automatic transmission internal shaft supports

• Industrial gearboxes and reducers with integral shaft raceways

• Pumps and compressors where space and weight savings are beneficial

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