CAT 308-9807 BEARING-SLV-GD

The CAT 308-9807 YM bearing cage (also known as a bearing retainer/isolation cage) is a core component for bearings in small and medium-sized wheel loaders and other equipment. It is used to precisely separate and guide the rolling elements, maintain bearing clearance and lubrication, and ensure stable operation of the transmission system. The following is key information.

Core Technical Parameters

Item Details
Part Model: CAT 308-9807 YM (Carbon steel stamped bearing cage, compatible with straight sleeve bearings, GD universal type)

Material: S50C carbon steel, stamped, galvanized surface, suitable for operating conditions from -40℃ to +120℃

Compatible Bearings: Straight sleeve bearings with an inner diameter of 45 mm, an outer diameter of 68 mm, and a rolling element diameter of 7 mm, suitable for CAT 980 series loaders and other equipment

Structural Parameters: Cage pitch circle diameter 56 mm, number of pockets 12, pocket diameter 7.2 mm, overall thickness 12 mm

Single Weight: Approximately 0.18 kg (0.3968 lbs)

Core Functions: Separates rolling elements to prevent friction, guides even distribution of rolling elements, stores grease, compensates for bearing clearance, buffers impact, and extends bearing life

Structure and Core Functions: Stamped carbon steel structure: S50C Made of carbon steel by stamping, offering moderate strength and reasonable cost, suitable for light to medium load conditions. Galvanized surface enhances corrosion resistance.

Precise pocket design: 12 circular pockets precisely match the rolling element dimensions, guiding smooth operation and reducing friction and wear.

Lubrication storage space: Grease storage grooves are provided between the pockets to ensure sufficient lubrication of the rolling elements and improve bearing operating efficiency.

Clearance compensation capability: The elastic structure compensates for thermal expansion and contraction during bearing operation, maintaining stable clearance and reducing vibration and noise.

Compatible models and application scenarios:

Compatible equipment: Straight-sleeve bearings in the gearbox and drive axle of CAT 980C/980F/980G/980H wheel loaders, and slewing bearings in some mini excavators.

Core application: Used in light to medium load, medium speed bearing systems to separate rolling elements, guide movement, store grease, ensure smooth bearing operation, extend bearing life, and adapt to vibration and impact conditions in daily equipment operation.

Installation and Maintenance Points

Installation: Clean the cage and rolling elements, checking for deformation and cracks. Install each rolling element into its pocket, ensuring it is properly seated and free from jamming.

When assembling with the inner and outer rings of the bearing, ensure uniform clearance between the cage and rolling elements, and between the inner and outer rings, to avoid deformation caused by assembly stress.

Maintenance: Regularly inspect the cage for deformation, wear, or breakage. Replace it immediately if any abnormalities are found to prevent rolling elements from falling off and damaging the bearing.

Replenish grease regularly according to the equipment maintenance manual, ensuring the cage pockets and lubrication grooves are full of grease to maintain good lubrication.

Avoid bearing overload and overspeed operation to prevent damage to the cage due to excessive stress or overheating.