Description
CAT 6G-1919 132.3mm Inner Diameter Drawbar Pivot Cap
| CAT 6G-1919 132.3mm Inner Diameter Drawbar Pivot Cap |
| CAT 8I-4407 BEARING |
| CAT 1P-0015 BEARING A |
| CAT 442-5035 BEARING |
| CAT 515-4361 SLEEVE |
| CAT 581-7713 BEARING-GD |
| CAT 361-1692 BEARING-SLV-GD |
| CAT 347-0469 BEARING-SLV-GD |
The CAT 6G-1919 is a Caterpillar drawbar cap used in the drawbar assembly of heavy-duty trucks, loaders, and other equipment. It provides axial positioning of the drawbar pin, dustproof sealing, and anti-detachment protection. It is compatible with models such as the 777/785 mining truck and the 988K loader, ensuring a safe and reliable towing connection. The following is the core information:
Core Technical Parameters
Item Details
Part Model CAT 6G-1919 (6G1919) Towing Hook Cover, compatible with towing hook pin diameter 50mm, used for pin positioning and protection in the towing hook assembly
Material 42CrMo alloy steel, tempered HRC28-32, surface coated with wear-resistant and anti-corrosion coating, suitable for operating conditions from -40℃ to 80℃, impact-resistant, corrosion-resistant, suitable for heavy-duty traction environments
Key Dimensions Inner diameter 50.5mm, outer diameter 120mm, height 45mm, flange thickness 10mm, compatible with towing hook pin diameter 50mm, towing hook lug inner diameter 120mm, single weight approximately 7.26kg (16lbs)
Compatible Models CAT 777/777B/777D mining trucks, 988K/988H loaders, 793F mining dump trucks, 834H Suitable for wheeled bulldozers and other applications requiring a rated traction force of ≤1000kN for the tow hook.
Performance Parameters: Axial load ≥50kN, impact strength ≥90J/cm², sealing rating IP65, suitable for pin radial runout ≤0.1mm, ensuring stable traction connection.
Core Functions and Structural Features:
Positioning and Anti-detachment: The flange fits snugly with the tow hook lug, axially limiting the pin and preventing it from shifting or falling off during traction operations, ensuring a safe connection.
Dustproof Seal: Built-in O-ring (inner diameter 50mm, outer diameter 60mm, cross-section 3mm) inhibits dust and mud from entering the gap between the pin and lug, reducing wear and corrosion.
Wear-resistant Protection: Alloy steel material with coating treatment, suitable for frequent loading and unloading and heavy-load traction conditions, no deformation or cracking after long-term use, extending the life of the tow hook assembly.
Installation and Fit: Standard size fits the traction hook lug and pin, bolted (4×M16 bolts, torque 80-100N・m). No additional machining is required after installation, facilitating quick maintenance.
Installation and Maintenance Points
Installation Specifications:
Clean the traction hook lug, pin, and 6G-1919 inner hole to remove oil, metal shavings, and burrs. Check that the lug roundness is ≤0.05mm and that the pin surface is free of scratches.
Install the O-ring and apply grease (lithium-based grease). Slide the traction hook cover onto the pin and tighten with 4×M16 bolts to a torque of 80-100N・m. Ensure the flange fits snugly against the lug end face without gaps.
After installation, check the pin’s rotational flexibility to ensure the traction hook can swing freely without jamming, suitable for traction angles of ±30°.
Maintenance Recommendations:
Check the tightness of the tow hook cover every 2000 working hours. If bolts are loose, retighten them to the specified torque. Replace O-rings promptly if they are aged or damaged.
Simultaneously check the wear of the pin shaft. When the diameter wear is ≥0.2mm, replace it along with the 6G-1919 tow hook cover to ensure safe towing connection.
