| Customization: | Available |
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| Rolling Body: | Roller Bearings |
| The Number of Rows: | Double |
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| Deep groove ball bearings | Crossed Roller Bearings | Rod end |
| Double row deep groove ball bearing | Needle roller bearings | Radial spherical plain bearings |
| Self-aligning ball bearing | Tapered roller bearings | Stainless Steel Bearings |
| Angular contact ball bearings | Spherical roller bearings | Insulating bearing |
| Thrust ball bearings | Cylindrical roller bearing | Ceramic bearing |
| Pillow Block Bearing | Cylindrical roller thrust bearings | High-temperature bearings |
The cages of double row cylindrical roller bearings are available in several materials, including:
The precision levels of double row cylindrical roller bearings are classified according to ISO, DIN, and GB/T standards. The common precision grades include:
Installation Instructions for Super-Precision Cylindrical Roller Bearings
Super-precision cylindrical roller bearings are designed for high-speed, high-precision applications such as machine tool spindles, aerospace equipment, and precision instruments. Proper installation is crucial to ensure optimal performance, longevity, and reliability. Follow the guidelines below for correct installation.
1. Preparation Before Installation
Ensure the work environment is clean to prevent contamination from dust or debris.
Check the bearing, shaft, and housing for any damage or burrs.
Verify the bearing model and suffixes to ensure it meets the application requirements.
Apply a thin layer of lubricant to the bearing seat and shaft.
2. Installation Methods
(1) Press-Fit Installation (For Small Bearings)
Use a press tool to apply uniform pressure to the bearing's inner ring when mounting on the shaft.
Avoid applying force to the rollers or outer ring to prevent damage.
(2) Heat Installation (For Medium & Large Bearings)
Heat the bearing to 80-100°C (176-212°F) using an induction heater.
Ensure even heating and avoid exceeding 120°C (248°F) to prevent material deformation.
Carefully slide the bearing onto the shaft while it is still expanded.
(3) Shrink Fit Installation (For Heavy-Duty Applications)
Cool the shaft using dry ice or liquid nitrogen to contract it slightly.
Quickly slide the bearing onto the shaft before it returns to its normal temperature.
3. Post-Installation Inspection
Rotate the bearing by hand to check for smooth movement and any abnormal noise.
Ensure the bearing is properly seated against the shoulder of the shaft or housing.
Measure the radial and axial clearance if necessary.
4. Bearing Suffix Explanation
Super-precision cylindrical roller bearings come with various suffixes indicating their specifications:
K - Tapered bore (1:12)
M - Machined brass cage
E - Enhanced capacity design (larger rollers for higher load capacity)
P4 / P2 - Super precision grades (ISO standard)
X - Special internal design for improved performance
C2 / C3 / C4 - Radial clearance class (C2: smaller than normal, C3/C4: larger than normal)
Understanding these suffixes helps in selecting the right bearing for specific applications.
5. Lubrication and Maintenance
Use high-quality grease or oil suitable for high-speed operation.
Regularly check for signs of wear, contamination, or unusual noise.
Avoid over-lubrication, which can cause overheating.
Q1: MOQ?
A: 10-5000 pcs customized for your brand bearings.
Q2: Are You A Trading Company Or Manufacturer?
A: We have the manufacturing bearings for more than 20 years, "Quality is our culture"
Q3: How Long Is Your Delivery Time?
A: Generally it is 5-8 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
Q4: What Causes Bearing Noise?
A. Bearing noise is a function of both the bearing and the way it is used. Some external factors that affect bearing noise include lubricant type, excessive bearing load, and improper installation. Once the abnormal noise occurs, you can contact our engineers, we will help you find the reasons and provide the appropriate solutions.
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