When your equipment demands reliable performance under substantial loads, the Ball Bearing 6308 delivers the engineering solution you need. This medium-series deep groove ball bearing combines robust construction with versatile performance characteristics, making it an essential component for industrial motors, agricultural machinery, and heavy-duty transmission systems. With its 40mm bore and proven track record in demanding applications, the product bridges the gap between light-duty bearings and specialized heavy industrial solutions.

Profound Groove Ball Architecture
The 6308 highlights a classic profound groove ball bearing plan optimized for adjusted execution. The profound raceway geometry gives tall osculation between the steel balls and raceways, empowering the bearing to handle both spiral and pivotal loads successfully. This dual-direction stack capability makes it especially important in applications where shaft situating is critical.
Material and Warm Treatment
Manufactured from GCr15 (proportionate to SAE 52100) vacuum-degassed chrome steel, each bearing experiences exactness warm treatment to accomplish HRC 60-64 hardness. This fabric choice guarantees ideal weakness life and dimensional steadiness beneath changing working temperatures.
Cage Arrangement Options
The standard squeezed steel cage gives toughness and cost-effectiveness for most applications. The cage plan keeps up appropriate ball dispersing whereas permitting productive grease stream, contributing to the bearing's solid execution over its speed range.
Load Taking care of Capability
With a energetic stack rating of 40.8 kN, this bearing successfully oversees the tall outspread loads normal in electric engines extending from 40-75 HP. The 24.0 kN inactive stack rating guarantees solid execution amid startup and low-speed operations where full-film oil may not be established.
Speed and Temperature Performance
The bearing's geometry and fabric properties empower operation at speeds up to 5,000 RPM with oil oil, or 9,000 RPM with oil oil. The bigger cross-section compared to 6000 or 6200 arrangement heading gives way better warm dissemination, tending to warm development challenges in gearbox applications.
Maintenance and Benefit Life
The Z1V1 vibration and commotion classification guarantees smooth, calm operation appropriate for noise-sensitive situations. Beneath appropriate oil and working conditions, these orientation convey expanded benefit interims, decreasing support costs and hardware downtime.

Electric Motor Applications
In industrial electric motors, the Ball Bearing 6308 serves as the drive-end bearing, managing radial forces from belt drives while accommodating thermal expansion of the rotor shaft. Its robust construction prevents bearing seizure during continuous duty cycles, ensuring motor reliability.
Agricultural Machinery
Agricultural equipment such as balers and combines benefit from the 6308's sealed configurations (2RS). The bearing's larger grease reservoir compared to smaller series enables longer service intervals during critical harvest seasons, while the sealed design protects against dust, chaff, and moisture contamination.
Heavy-Duty Gearboxes
As an intermediate shaft bearing in reduction gearboxes, the 6308 stabilizes gears against separation forces. Its ability to handle moderate axial thrust maintains gear mesh alignment under fluctuating torque loads, contributing to gearbox longevity and performance.
General Mechanical Transmission
The bearing's versatile design makes it suitable for various mechanical transmission systems where 40mm shaft support is required. Its balanced performance characteristics accommodate the diverse operating conditions found in industrial machinery.

Three-Level Quality Assurance
Our manufacturing process implements a comprehensive three-level quality control system covering raw material inspection, in-process monitoring, and finished product verification. Each bearing undergoes testing of 12 core performance indicators, including vibration analysis and life testing.
Precision Manufacturing
Utilizing high-purity bearing steel and precision grinding technology, we maintain strict dimensional tolerances and surface finish requirements. Special heat treatment processes optimize the bearing's wear resistance and precision retention characteristics.
Seal Options
Customization Support
We give OEM customization administrations to meet particular application prerequisites. Whether you require adjusted inner clearance, uncommon cage materials, or custom grease, our building group can create arrangements custom fitted to your gear needs.
With over 1,000 standard bearing sorts in stock, we guarantee fast conveyance for critical prerequisites. Standard orders dispatch inside 48 hours, whereas our optimized generation forms empower custom bearing conveyance in 15-20 days for most configurations.
Our 30 a long time of bearing industry encounter, combined with coordinates supply chain capabilities, guarantees reliable quality and solid accessibility. We keep up territorial warehousing centers to back just-in-time conveyance prerequisites for generation situations.
For technical specifications, application guidance, or custom bearing solutions, contact our engineering team at auto@lyautobearing.com. Our experienced technical staff can provide detailed application analysis and Ball Bearing 6308 selection support to optimize your equipment performance.
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