Corogard Pro Bearing-MD
コロガードプロベアリング-MD / JTEKT Corporation (Official website) / Listed on page 55 of the document
A hybrid ceramic bearing combining precipitation-hardening stainless steel rings with corrosion resistance and silicon nitride balls, suitable for use in water and solutions.
Last verified: (date the content was verified against the source document)
A reduced image of the relevant page is quoted from the document. Copyright belongs to JTEKT Corporation.Request removal
Specifications
| Permissible rotational speed | 1000 min-1 |
|---|---|
| Raceway material | SUS630 |
| Rolling element material | Silicon nitride |
How to choose Deep Groove Ball Bearings
Points to check when selecting, with the values for this product (Corogard Pro Bearing-MD).
-
1. Main dimensions to suit shaft and housing
Select the bore diameter d to match the shaft diameter, the outside diameter D to match the housing bore, and the width B to suit the installation space. The listed products cover a wide range of bore diameters from 0.6 to 1420 mm, and even at the same bore diameter there are dimension series with different outside diameters and widths. Since load capacity and mass change with the dimension series, confirm the three dimensions in combination.
-
2. Basic dynamic load rating for life calculation
The basic dynamic load rating Cr is the reference value for calculating rolling fatigue life, and life is estimated from the ratio of the actual applied load to Cr. For high loads or when long life is required, select a bearing with a larger Cr. Bearings made of special materials may have lower ratings than steel bearings of the same dimensions, so confirm life under the operating conditions.
-
3. Check static and shock loads against static rating
The basic static load rating C0r is the guideline load at which permanent deformation does not occur, applicable when stationary, rotating at low speed, or subjected to shock loads. For applications with oscillating motion or large loads while stopped, select with emphasis on the ratio to C0r (static safety factor) rather than the dynamic rating.
-
4. Internal clearance to suit fit and temperature
Radial internal clearance decreases during operation due to interference fits and temperature differences between the inner and outer rings. Clearances larger than standard, such as C3, are used in applications where the inner ring tends to expand, such as motors or high-temperature environments. Clearance that is too small leads to heat generation and seizure, so determine the class from the fit and operating temperature.
-
5. Materials and lubrication suited to the environment
This product: Raceway material SUS630Stainless steel or ceramics (silicon nitride, zirconia, silicon carbide) are used in water or chemical solutions, while solid lubricants such as graphite or fluorine-based solids and fluorine grease are used in high-temperature, vacuum or clean environments. Listed products have maximum operating temperatures of 250 to 350°C, so select the material and lubrication method based on temperature, atmosphere and dust-generation requirements.
-
6. Check speed limits and electrical corrosion countermeasures
Confirm that the limiting speed and reference speed exceed the operating speed. In equipment where shaft current flows, such as inverter-driven motors, hybrid bearings with insulating-coated or ceramic balls can prevent electrolytic corrosion. Ceramic balls are lighter than steel balls, so the effect of centrifugal force is reduced even at high speeds.
This guide was written by AI based on the listed products' documents and specification items.
Description
Hybrid ceramic bearing with corrosion-resistant precipitation-hardening stainless steel rings and silicon nitride balls. Lubricated with fluoropolymer.
Features
- Hybrid ceramic construction
- Corrosion resistance
- Suitable for underwater use
Applications
- Semiconductor manufacturing equipment
- Chemical processing equipment
- Food processing machinery
- Cleaning equipment
FAQ
- Q. Can the Corogard Pro Bearing-MD be used underwater or in solutions?
- A. Yes, this bearing can be used underwater. It combines precipitation-hardening stainless steel rings with excellent corrosion resistance and silicon nitride balls.
- Q. What materials are used for the rings and balls of the Corogard Pro Bearing-MD?
- A. The rings are made of corrosion-resistant precipitation-hardening stainless steel (SUS630), and the balls are made of silicon nitride. It is a hybrid ceramic bearing.
- Q. What are the permissible rotational speed and lubrication method of the Corogard Pro Bearing-MD?
- A. The permissible rotational speed is 1000 min-1. It is lubricated with fluoropolymer.
- Q. How is the Corogard Pro Bearing-MD used in applications such as semiconductor manufacturing equipment and food machinery?
- A. It is used in semiconductor manufacturing equipment, chemical processing equipment, food processing machinery, and cleaning equipment.
Written by AI based on the content of the source documents.
Source documents
Similar products (other manufacturers)
Deep Groove Ball Bearings products, ordered by similarity of specifications and applications.
-
Deep Groove Ball Bearings
Hybrid Deep Groove Ball Bearing
Deep groove ball bearing combining bearing steel rings with silicon nitride rolling elements. Features electrical insulation, high-speed capability and long service life.
SKF
-
Deep Groove Ball Bearings
SKF High-Temperature Deep Groove Ball Bearing VA228
A high-temperature deep groove ball bearing usable up to 350°C. Graphite lubrication eliminates the need for relubrication, making it suitable for high-temperature environments with low-speed and oscillating applications.
SKF
-
Needle roller bearings
Poly Lube Needle Bearing
Needle roller bearing sealed with heat-solidifying grease to prevent grease scattering and reduce relubrication maintenance.
NTN Corporation
-
Cylindrical Roller Bearings
RCC Bearing (Sealed Cylindrical Roller Bearing for Railway Vehicle Axle Boxes)
A sealed double-row cylindrical roller bearing unit for railway vehicle axle boxes. Seals at both ends and long-life grease enhance maintainability and reliability.
NSK
-
Needle roller bearings
Needle Roller Bearing with Cage
Needle roller bearing with a cage that guides the rollers. Small diameter with high load capacity, low friction, suitable for high-speed rotation. Also suitable for oscillating applications.
NTN Corporation
More products from JTEKT Corporation
See all →-
Deep Groove Ball Bearings
Deep Groove Ball Bearing
Single-row ball bearing that accepts radial load and axial load in both directions. Suitable for high-speed rotation and low-vibration applications. Dimension tables cover bore diameters from 100 to 1420 mm.
JTEKT Corporation
-
Deep Groove Ball Bearings
Clean Pro-RZ
Stainless steel radial ball bearing lubricated by a gel-like fluoropolymer film, with low particle generation, and suitable for vacuum, cleanroom and high-speed applications.
JTEKT Corporation
-
Deep Groove Ball Bearings
Clean Pro-RB
A low-dust-generating radial ball bearing usable in vacuum at temperatures up to 260℃.
JTEKT Corporation
-
Deep Groove Ball Bearings
New Clean Pro-PR
Low-particle-generation radial ball bearing with a fluoropolymer coating on all surfaces, usable up to 200°C in vacuum.
JTEKT Corporation
-
Deep Groove Ball Bearings
EXSEV-EX
A radial ball bearing filled with fluorine-based grease that complies with environmental regulations and can be used in clean, vacuum, and high-temperature environments.
JTEKT Corporation
-
Deep Groove Ball Bearings
EXSEV-FA
A solid-lubricated, low-particle-generation bearing lubricated with a fluoropolymer, compatible with clean and vacuum environments.
JTEKT Corporation