Rubber Bearing With Internal Tapered Bore
Резиновый подшипник с внутренним коническим отверстием
Rodamiento de goma con orificio cónico interno
The 801981758 Rubber Bearing With Internal Tapered Bore is a genuine XCMG elastomeric bearing engineered to provide precise articulation and load transfer in articulated dump truck suspension and steering systems. This OEM bearing, identified by part number 801981758, features a unique internal tapered bore that accommodates a matching tapered pin shaft, ensuring a tight, self‑centering fit that eliminates play and reduces wear. Manufactured from high‑resilience natural rubber bonded to inner and outer steel sleeves, the 801981758 bearing delivers exceptional shock absorption, vibration damping, and angular compliance, making it ideal for the demanding pivot joints of mining and construction equipment.
The 801981758 Rubber Bearing With Internal Tapered Bore is a precision‑engineered component that provides flexible, high‑load articulation for XCMG articulated dump trucks.
This genuine OEM bearing features a unique internal taper that matches a corresponding tapered pin shaft, ensuring a positive, self‑locking fit that eliminates clearance and reduces fretting wear.
The elastomeric element absorbs shock loads, dampens vibration, and accommodates angular misalignment, protecting the surrounding structure from fatigue.
Its bonded construction ensures that the rubber remains securely attached to the metal sleeves, providing consistent performance over millions of cycles.
A worn or loose bearing can cause metal‑to‑metal contact, leading to excessive play and accelerated wear of pins and brackets. The 801981758 bearing eliminates these risks with its precision taper and durable rubber compound.
In XCMG articulated dump trucks, the suspension and steering systems rely on precision pivot joints to handle the high loads and angular movements encountered during operation.
The 801981758 bearing is typically installed at the articulation point between the front and rear frames, as well as in steering knuckle and suspension linkage mounts.
The internal tapered bore ensures that when the pin shaft is tightened, it wedges firmly into the bearing, creating a rigid, backlash‑free connection that can still rotate smoothly.
This taper also facilitates easy assembly and disassembly, as the pin can be driven out with minimal force after loosening.
The bearing’s rubber element accommodates minor misalignments and absorbs impact loads, protecting the pivot pin and surrounding structure from damage.
The 801981758 bearing features a precision‑machined inner sleeve with a 1:12 taper that matches standard tapered pins, ensuring a precise interference fit when torqued to specification.
The outer sleeve is designed with a slight interference fit for the housing bore, preventing rotation and ensuring that all torsional loads are transmitted through the rubber.
The rubber element is compression‑molded and chemically bonded to both sleeves using a high‑strength adhesive system that resists peeling and separation under cyclic loading.
The rubber compound is formulated with anti‑oxidants and anti‑ozonants to resist environmental degradation, and its hardness (65 Shore A) provides the ideal balance between stiffness and compliance.
The bearing’s geometry includes lubrication grooves and a grease fitting port (if applicable) to facilitate periodic lubrication of the pin‑to‑sleeve interface.
The 801981758 bearing uses a specially developed natural rubber compound that offers outstanding tear strength, resilience, and low‑temperature flexibility.
The compound is reinforced with carbon black and process oils to achieve the desired modulus and damping characteristics while maintaining high elongation at break.
The bonding process involves grit‑blasting the metal sleeves, applying a proprietary primer and adhesive, and then injecting the rubber under heat and pressure.
This ensures a bond strength exceeding 12 N/mm, guaranteeing that the rubber will not separate from the metal even under severe dynamic loading.
The result is a bearing that delivers consistent spring rates and damping properties over millions of articulation cycles.
The 801981758 rubber bearing is widely used in XCMG articulated dump trucks operating in surface mining, underground mining, and heavy construction.
It is commonly installed at the articulation joint between the front and rear frames, where it allows the two sections to pivot while maintaining alignment.
The bearing is also used in steering knuckle mounts, suspension linkage pivots, and stabilizer bar attachments.
Its tapered bore design ensures a secure fit on the pin shaft, reducing the risk of loosening due to vibration.
The 801981758 bearing is also suitable for other XCMG equipment, including wheel loaders and motor graders that use similar tapered pivot pin configurations.
Every 801981758 bearing is manufactured in an ISO 9001‑certified facility under strict quality control procedures.
Incoming steel tubes and rubber compounds are tested for chemical composition, hardness, and tensile strength before production.
During machining, the taper angle and dimensions are verified using precision gauges and coordinate measuring machines.
After bonding, each bearing is inspected for bond integrity using ultrasonic testing and destructive peel tests on sample parts.
Finished bearings are subjected to radial and axial spring rate testing, as well as dynamic durability testing under combined radial and angular loading.
This comprehensive quality assurance programme guarantees that every 801981758 bearing meets XCMG’s exacting standards for reliability and safety.
The 801981758 bearing is designed as a direct replacement for the original bearing on XCMG articulated dump trucks, including models XDA30, XDA40, XDA45, XDA45U, XDA60, TA30, AD45, AD60, and other variants.
Its tapered bore (1:12) and outer diameter (80 mm) match the factory specifications, ensuring proper press‑fit in the housing and correct engagement with the tapered pin.
The bearing is supplied with a protective oil coating; the pin shaft should be cleaned and lightly lubricated before assembly.
For cross‑brand applications, verify that the taper angle, pin diameter, and housing bore are compatible.
Always consult the parts manual to confirm the correct part number for your specific application.
Proper installation of the 801981758 bearing is critical to achieve the correct preload and alignment. Begin by cleaning the housing bore and the pin shaft thoroughly.
Apply a thin layer of anti‑seize or assembly lubricant to the outer sleeve and the housing bore to facilitate pressing.
Press the bearing into the housing using a suitable tool, ensuring it is fully seated against the shoulder.
Insert the tapered pin shaft into the bearing bore, aligning the taper. Use a hydraulic puller or press to drive the pin into place, applying the specified axial force to achieve the correct interference.
Tighten the pin retaining nut to the recommended torque (typically 150‑200 N·m) to lock the taper.
During routine maintenance, check for any signs of play or movement in the joint. Re‑tighten the retaining nut if necessary, but do not over‑torque.
Inspect the rubber element for cracking, swelling, or separation from the sleeves. Replace the bearing if any damage is observed.
The 801981758 bearing complies with ASTM D2000 and SAE J200, meeting the requirements for oil resistance, heat resistance, and low‑temperature flexibility.
The bearing is free from restricted substances such as lead, cadmium, and PAHs, complying with RoHS and REACH regulations.
Its flame resistance is tested per SAE J369 for use in off‑highway equipment.
Using genuine XCMG bearings like the 801981758 helps maintain compliance with equipment warranty and safety regulations.
Aftermarket bearings with tapered bores often suffer from incorrect taper angles, poor bond quality, or inferior rubber compounds, leading to premature failure and unsafe conditions.
The genuine 801981758 bearing is engineered to the exact taper and load specifications of XCMG, ensuring a perfect fit, consistent spring rate, and long service life.
Using genuine bearings reduces the risk of joint play, noise, and unpredictable handling.
Genuine XCMG parts also preserve the warranty and resale value of your equipment.
When you choose the 801981758, you invest in proven reliability and long‑term cost savings.
The XCMG 801981758 Rubber Bearing With Internal Tapered Bore is a critical component for maintaining precise articulation, load distribution, and durability in articulated dump trucks.
Its high‑quality rubber compound, robust bonding, and precision tapered bore make it the reliable choice for demanding mining and construction applications.
Whether you are overhauling a suspension linkage, replacing worn pivot bearings, or performing preventive maintenance, this genuine bearing delivers the performance and durability you expect from XCMG.
Always source genuine XCMG components from authorised dealers to guarantee authenticity and quality.
With the 801981758 bearing, you can ensure smooth, quiet operation, reduce downtime, and extend the service life of your equipment.
Choose genuine – choose XCMG for all your suspension bearing needs.
