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Mounted Roller Bearings

Advantages and Features

High load capacity

Roller bearing design can withstand higher radial and axial loads than ball bearings.

Strong impact resistance

Suitable for industrial scenarios with large vibration and impact loads.

Self-aligning function (applicable to spherical roller bearings)

Allows slight axial deflection to maintain operational stability.

Дълъг експлоатационен живот

Optimizes roller contact stress, reduces wear, and extends bearing service life.

Easy to install

Modular design, pre-assembled bearings and seats, simplifying the installation process.

Adaptable to harsh environments

Equipped with an efficient sealing structure, it has dustproof, waterproof and high temperature resistance.

Easy to maintain

Relubricable design to extend equipment operation time and reduce downtime.

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Mounted Roller Bearings: Comprehensive Overview

Mounted roller bearings are specialized bearing units that integrate roller bearings (e.g., spherical, cylindrical, or tapered roller bearings) with bearing housings (e.g., pillow block, flange, or take-up housings). These bearings are known for their high load capacity, strong impact resistance, and long service life, making them indispensable in industries such as mining, metallurgy, paper production, and heavy machinery.

Below is a table of common mounted roller bearing models and their specifications. Specific parameters may vary depending on the brand and manufacturer. Selection should be made based on actual requirements.
Модел Roller Type Bearing Housing   Type Inner Diameter   (mm) Outer Diameter   (mm) Ширина (mm) Static Load (kN) Dynamic Load (kN) Приложения
P222 Spherical   Roller Bearing Pillow   Block 30-100 80-180 40-60 120-250 80-160 Mining   equipment, metallurgical machinery
F224 Spherical   Roller Bearing Flange   Block 20-90 70-170 35-55 100-200 70-140 Heavy-duty   conveyors, paper machinery
T305 Cylindrical   Roller Bearing Take-Up   Unit 25-75 60-150 30-50 80-180 60-120 Construction   machinery, conveyor systems
SYR-45 Tapered   Roller Bearing Pillow   Block 45-110 90-210 50-70 200-350 150-250 Wind   turbines, hydro turbines
H305 High-Temperature   Spherical Roller Bearing Pillow   Block 40-120 100-200 45-65 150-300 100-200 High-temperature   industries like metallurgy and glass
UCX-310 Heavy-Duty   Tapered Roller Bearing Flange   Block 50-140 120-260 60-80 250-400 200-320 Heavy   machinery, mining conveyors
UCT-215 Spherical   Roller Bearing Take-Up   Unit 30-100 80-200 40-70 120-300 90-180 Long-distance   conveyor systems
Parameter Descriptions
Roller TypesSpherical Roller Bearings: Allow for minor misalignment, suitable for applications with vibration and impact loads.

Cylindrical Roller Bearings: Offer high radial load capacity, ideal for heavy static loads.

Tapered Roller Bearings: Handle both radial and axial loads, suitable for combined load conditions.

Bearing Housing Types

Pillow Block: Commonly used for horizontal shaft installations.

Flange Block: Ideal for vertical installations or space-constrained scenarios.

Take-Up Unit: Suitable for applications requiring adjustable belt tension.

Load Parameters

Static Load: Maximum load the bearing can support when stationary.

Dynamic Load: Load the bearing can sustain during continuous motion.

Приложения

Mining Machinery: Examples include crushers, elevators, etc.

Construction Machinery: Examples include excavators, cranes, etc.

Energy Equipment: Examples include wind turbines, hydro turbines, etc.

Mounted Roller Bearings

1. Applications and Detailed Use Cases

(1) Mining and Metallurgical Equipment
Examples: Crushers, ball mills, rolling mills.

Benefits: Handles heavy impact loads, resistant to high temperatures and contaminants.

(2) Paper and Printing Machinery
Examples: Calenders, paper reels, coating machines.

Benefits: Operates at high speeds while minimizing vibrations.

(3) Heavy-Duty Conveyor Systems
Examples: Chain conveyors, bucket elevators.

Benefits: Supports heavy rollers, reduces friction and wear.

(4) Construction Equipment
Examples: Excavators, cranes, concrete pump trucks.

Benefits: Vibration resistance, dustproof, and waterproof capabilities for harsh environments.

(5) Energy and Power Equipment
Examples: Wind turbines, hydraulic turbines.

Benefits: High reliability, reduced maintenance demands.

Mounted Roller Bearings for Hydroelectric generator Mounted Roller Bearings for Wind turbines

Common Brands

SKF Mounted Roller Bearings
NSK Mounted Roller Bearings
FAG Mounted Roller Bearings
INA Mounted Roller Bearings
NTNMounted Roller Bearings
TIMKEN Mounted Roller Bearings
KOYO Mounted Roller Bearings
NACHI Mounted Roller Bearings

SKF Mounted Roller Bearings

2. Features and Advantages

(1) Structural Features
Modular Design: Pre-assembled bearing and housing for easy installation.

Versatile Roller Types:

Spherical Roller Bearings: Self-aligning, accommodates misalignment.

Цилиндрични ролкови лагери: High radial load capacity.

Конусни ролкови лагери: Combined radial and axial load handling.

Various Housing Options:

Pillow Block Housings: General-purpose, for horizontal shafts.

Flange Housings: Space-saving design for vertical mounting.

Take-Up Units: Adjustable for belt tensioning.

(2) Performance Advantages
Advantages Details
High Load Capacity Outperforms ball bearings under heavy loads.
Impact Resistance Suitable for vibration-intensive and impact-prone environments.
Long Service Life Optimized roller stress distribution minimizes wear.
Maintenance Friendly Relubricable design reduces downtime.
Environment-Ready Dustproof, waterproof, and high-temperature resistant.

3. Frequently Asked Questions (FAQs)

Q1: How to choose between mounted roller bearings and ball bearings?
Roller Bearings: Ideal for heavy loads and impact (e.g., mining, metallurgy).

Ball Bearings: Better for medium/light loads and high speeds (e.g., conveyors, food machinery).

Q2: What distinguishes self-aligning roller housings from standard housings?
Self-Aligning Housings: Accommodates slight shaft misalignments; suitable for long shafts and flexible conditions.

Standard Housings: Higher rigidity; best for short, well-aligned shafts.

Q3: How to identify when a mounted roller bearing needs replacement?
Abnormal noises (metallic grinding, irregular vibrations).

Excessive temperature rise (above 80°C indicates lubrication issues).

Increased internal clearance (affects operational accuracy).

Damaged seals (leads to grease leakage or contamination ingress).

Q4: How to correctly install mounted roller bearings?
Avoid direct hammering; use hydraulic or heating methods.

Ensure proper shaft-to-housing fit, avoiding tight or loose assembly.

Lubricate adequately before first operation.

Q5: Are mounted roller bearings suitable for high-speed applications?
Generally not recommended. These bearings are better for medium to low speeds and heavy loads. For high-speed requirements, consider mounted angular contact ball bearings.

4. Summary and Key Takeaways

Mounted roller bearings are core components in heavy industries, offering unmatched load capacity, impact resistance, and durability. These bearings are the preferred choice for extreme working conditions but require precise installation and regular maintenance for optimal performance.

Recommended Applications:
✔ High-load and high-impact environments (e.g., crushers, rolling mills).
✔ Long-shaft operations requiring self-alignment (e.g., conveyors, fans).
✔ Harsh environments (e.g., dusty, humid, or high-temperature conditions).

Mounted Roller Bearings

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