yanmar connecting rod bearing

Deep groove ball bearing with seals or shields

Single row deep groove ball bearings with seals or shields are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types. The integral sealing can significantly prolong bearing service life because it keeps lubricant in the bearings and contaminants out.Integral sea

ling prolongs bearing service life

Simple, versatile and robust design

Low friction and high-speed capability

Accommodate radial and axial loads in both directions

Require little maintenance

Knowledge and introduction of bearings    :                                                                                                 

The Yanmar connecting rod bearing is a crucial component in the internal combustion engines produced by Yanmar, a renowned engine manufacturer. Below is a detailed introduction to this component:

Overview

The connecting rod bearing, also known as a conrod bearing or big-end bearing, is located between the connecting rod and the crankshaft in a Yanmar engine. Its primary function is to facilitate the smooth and efficient transfer of power from the piston to the crankshaft, converting reciprocating motion into rotational motion.

Structure and Materials

1. Structure:

• The Yanmar connecting rod bearing typically consists of two halves, which are split along the axial direction and held together by a retaining ring or cap.

• The inner surface of the bearing is precision-machined to match the contour of the crankpin, ensuring a snug fit and minimal friction.

2. Materials:

• High-quality alloy steel or bearing steel is commonly used for the bearing's housing, providing strength and durability.

• The bearing surface may be coated with a layer of anti-friction material, such as babbitt metal or white metal, to further reduce friction and wear.

Function and Operation

1. Function:

• The connecting rod bearing supports the connecting rod as it pivots around the crankpin during engine operation.

• It ensures that the power generated by the piston's reciprocating motion is efficiently transferred to the crankshaft, driving it to rotate.

2. Operation:

• As the piston moves up and down in the cylinder, the connecting rod pivots around the crankpin, causing the bearing to rotate within its housing.

• Oil is supplied to the bearing through lubrication channels to minimize friction and wear, ensuring smooth and reliable operation.

Applications and Compatibility

The Yanmar connecting rod bearing is specifically designed for use in Yanmar engines, which are widely employed in various applications such as agriculture, construction, marine, and industrial machinery. It is compatible with a range of Yanmar engine models, including but not limited to the 3TN75 and 3TN72 series.

Maintenance and Replacement

Regular inspection and maintenance of the connecting rod bearing are essential to ensure the long-term reliability and performance of the engine. Signs of wear or damage, such as scoring, cracking, or excessive clearance, may indicate the need for replacement.

Replacement should be carried out by a qualified technician using genuine Yanmar parts to ensure compatibility and performance. During the replacement process, it is crucial to follow the manufacturer's instructions and torque specifications to avoid damaging the bearing or other engine components.

Conclusion

The Yanmar connecting rod bearing is a vital component in Yanmar engines, playing a crucial role in the efficient transfer of power from the piston to the crankshaft. Its precision design, high-quality materials, and robust construction ensure smooth and reliable operation over a wide range of applications. Regular maintenance and timely replacement of worn or damaged bearings are essential to maintain engine performance and extend its service life.

For further details on this product please directly contact our sales department under shh@dmsw.com 

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