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Mining Solutions: Bearings, Housings and Power Transmission for Crushers, Mills and Conveyor Belts
In mining, every downtime is costly. That's why we work with spherical roller bearings, split housings and transmission components that withstand heavy loads, contamination and vibration. We quote what you need to keep your operation running.
Technical team at MR Accesorios Industriales · Updated on September 28, 2026

Mining Bearings: Resistance to Extreme Loads
In the mining industry, bearings work under extreme conditions: heavy loads, constant vibration, dust and moisture contamination. Therefore, spherical roller bearings are a frequent choice in crushers, mills and conveyor belts. Their design allows them to withstand misalignment and combined radial and axial loads.
We supply spherical roller bearings from recognized brands such as SKF, FAG and LINK-BELT. For example, SKF code 22325 is a spherical roller bearing with a 125 mm bore, suitable for high-demand applications. We also handle larger sizes, such as SKF 22361, for large equipment.
If you need a bearing for a mill or crusher, we quote the exact reference or indicate the appropriate alternative for your application. Send us the code, size or a photo of the part and we will respond promptly.
SAF and SNL Split Housings: Simplified Assembly and Maintenance
Split housings are essential in mining because they allow bearings to be mounted and dismounted without dismantling the entire shaft. This reduces downtime and facilitates maintenance on equipment such as conveyor belts and elevators. We work with two main series: SAF and SNL.
The SAF series is robust and used in heavy applications. For example, SKF housing SAF 322 is suitable for bearings with a 100 mm shaft diameter. The SNL series is more compact and versatile; SKF SNL 211 is a common model for 50 mm shafts.
In addition to housings, we supply covers and accessories to complete the assembly. For example, SKF covers TS 34 and TS 52, or TIMKEN seals LO519 and VR317. These components help protect the bearing against contamination, which is critical in mining environments.
Power Transmission: Chains, Pulleys and Couplings for Mining
Power transmission in mining must be reliable and durable. Roller chains are used in conveyors, feeders and other equipment. We supply chains of different pitches and strengths, suitable for heavy loads and abrasive environments.
Pulleys are another key component in belt drive systems. We work with pulleys of various diameters and grooves to adapt to your equipment needs. We also offer couplings to connect shafts and absorb misalignments, vibrations and shocks.
If you need spare parts for your mining plant's transmission system, we quote the corresponding chain, pulley or coupling. Send us the reference or measurements and we will respond promptly.
Spherical Roller Bearings: The Choice for Heavy Loads and Misalignment
Spherical roller bearings have two symmetrical rows of rollers and a spherical raceway in the outer ring. This allows them to self-align and compensate for shaft misalignment or structural deformations, common in mining equipment subjected to high stresses.
In our catalog you will find a wide variety of spherical roller bearings. For example, FAG 20222-MB is a bearing with a machined brass cage, suitable for high speeds and loads. 20240-MB is a larger version for bigger applications.
We also work with the LINK-BELT brand, recognized for its robustness. 6203U is a spherical roller bearing with a special design for housings, and 22318 is a general-purpose model in mining. We quote any of these references or their equivalents.
Split Housings: Installation and Alignment in Mining Equipment
Correct installation of a split housing is key to bearing life. In mining, where equipment operates under severe conditions, misalignment can cause premature failures. Therefore, it is important to choose the right housing and mount it according to the manufacturer's specifications.
The SAF and SNL housings we supply are designed to facilitate assembly and disassembly. They include a split base and a cap secured with bolts, allowing access to the bearing without dismantling the shaft. They can also be equipped with seals and covers to protect against contamination.
If you are assembling a housing system for a mill or conveyor belt, we help you select the correct housing. Send us the shaft diameter and bearing reference, and we will indicate the appropriate option.
Roller Chains and Pulleys: Reliable Transmission in Harsh Environments
Roller chains are widely used in mining to transport material, drive feeders and transmit power under dusty and humid conditions. A well-selected and lubricated chain can last thousands of hours, reducing maintenance costs.
We supply roller chains of different pitches and strengths, suitable for heavy loads. We also offer pulleys for V-belts, used in fans, pumps and other auxiliary equipment. A worn pulley can cause slippage and loss of efficiency.
If you need to replace a chain or pulley in your mining plant, we quote the exact reference or indicate a compatible alternative. Send us the size or a photo of the part and we will respond promptly.
Couplings: Absorbing Impacts and Misalignments in Mining Equipment
Couplings are components that connect two shafts and transmit torque while compensating for misalignments and absorbing impacts. In mining, where equipment is subject to vibrations and variable loads, a suitable coupling protects both the motor and the driven equipment.
We work with different types of couplings: elastic, gear, disc, among others. The choice depends on the application, torque to be transmitted and operating conditions. A poorly selected coupling can cause premature failures in bearings and shafts.
If you need a coupling for a crusher, mill or conveyor belt, we quote the appropriate option. Send us the equipment data (power, speed, shaft diameter) and we will respond promptly.
Frequently asked questions
What bearings are used in mining?
In mining, spherical roller bearings are mainly used due to their ability to withstand heavy loads and misalignment. Ball bearings and cylindrical roller bearings are also used in specific applications. We supply spherical roller bearings from brands such as SKF, FAG and LINK-BELT.
What is a SAF split housing?
A SAF split housing is a split bearing housing that allows the bearing to be mounted and dismounted without dismantling the shaft. It is widely used in mining to facilitate maintenance of conveyor belts and other equipment. We supply SKF SAF housings, such as SAF 322 and SAF 520.
How to choose a bearing for a crusher?
For a crusher, load, speed and operating conditions must be considered. Spherical roller bearings are often suitable due to their robustness. We recommend sending us the current bearing code or shaft dimensions, and we will quote the correct option.
Do you sell roller chains for mining?
Yes, we supply roller chains of different pitches and strengths, suitable for conveyors and other mining equipment. Send us the reference or measurements (pitch, width, roller diameter) and we will quote.
Do you ship to the interior of the country?
Yes, we ship nationwide from Buenos Aires, Argentina. We coordinate delivery with your carrier or quote the freight. Send us your inquiry via WhatsApp or email.
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