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Stainless Steel Non-standard Deep Groove Ball Bearing

What Is Stainless Steel Non-Standard Deep Groove Ball Bearing

 

 

Corrosion resistant to moisture and other media, these stainless steel non-standard deep groove ball bearing are ideal for harsh environments such as food and beverage, marine and agricultural industries. Designed with filling slots to accommodate more balls, these bearings have a higher radial load carrying capacity than conventional bearings.

 

Why Choose Us

 

Quality Assurance: ISO9001, IS014001, ISO45001, IATF16949, high-tech enterprise, specialized new enterprise.

Cutting-edge technology: The company has its own bearing parts factory, which produces rings, cages, shield and seals, which can deal with flexible and diverse Market demand.

Quality Services: We have a professional R&D and design team that designs and develops according to customer requirements and usage conditions.Professional guidance on the use and installation of bearings, making every effort to ensure bearing quality, and fully cooperating with after-sales service.

 

Material of Stainless Steel Non-Standard Deep Groove Ball Bearing

 

 

Steel
SAE52100 Chrome Steel (no prefix)
Higher hardness so longer life ratings
Lower cost
Good for temperatures of 120°C constant up to 150°C intermittent
Poor corrosion resistance
This is the standard steel for most ball bearings. It is harder than stainless steel meaning greater life ratings. It also has superior low noise qualities to standard 440 grade stainless steel. Chrome steel actually has a low chromium content and is not corrosion resistant. Chrome steel can tolerate continuous temperatures of up to 120°C. Above this temperature, it undergoes greater dimensional change and the hardness is affected, reducing load capacity. It can withstand up to 150°C intermittently but above this temperature, bearing life is significantly reduced.

 

440 Grade Martensitic Stainless Steel (prefix "S")
Good corrosion resistance to water and many weak chemicals
Good for temperatures from -70°C up to 250°C constant or 300°C intermittent
Slightly softer than chrome steel so lower load ratings
Will corrode in salt water or salt spray and poor resistance to acids/alkalis
More expensive than chrome steel
More resistant to corrosion due to the greater chromium content and the addition of nickel, 440 grade stainless steel is the most commonly used for corrosion resistant ball bearings. The chromium reacts with oxygen in the air to form a chromium oxide layer, known as the passive film, on the surface of the steel. It is hardened by heat treatment and gives a good combination of strength and corrosion resistance. This steel is magnetic unlike 300 grade austenitic steel.

 

The load capacity of AISI440 grade is approximately 20% less than chrome steel so life ratings will be slightly reduced. This grade exhibits good corrosion resistant when exposed to fresh water and some weaker chemicals but will corrode in seawater environments or in contact with many aggressive chemicals. 440 grade stainless steel will also withstand higher temperatures than chrome steel, coping with up to 250°C constant and up to 300°C intermittent with reduced load capacity. Above 300°C, bearing life can be considerably shortened.

 

AISI316 Austenitic Stainless Steel (prefix "S316")
Very good corrosion resistance to water, salt water and many chemicals
Good for temperatures up to 500°C as full complement type
Suitable for cryogenic applications down to -250°C
Negligible response to magnetic fields
More expensive than 440 grade due to low production quantities.
Suitable for very low load and low speed only
Not suitable for low noise applications
316 grade stainless steel bearings are used for greater corrosion resistance to seawater, salt spray and some acids/alkalis. They are suitable for very high temperature applications as the steel is useful in temperatures of up to 500°C. They can also be used in cryogenic applications as the steel retains its toughness down to -250°C. Unlike 440 grade bearings, stainless steel non-standard deep groove ball bearing are classed as non-magnetic due to their negligible response to a magnetic field although 316 stainless steel may become more magnetic after being cold worked.

 

Installing Stainless Steel Non-Standard Deep Groove Ball Bearing
 

Press-fit

Both the shaft and the bearing's inner ring are firmly fitted. A press can be used to force the bearing onto the pole once the outer ring and bearing seat hole have been loosely fitted. Next, the shaft and bearing are put into the bearing seat hole. There is a soft metal material assembly sleeve (made of mild steel or copper) that cushions the end face of the bearing inner ring. The bearing seat hole is securely fitted with the outer bearing ring. The bearing can be forced into the bearing initially when the shaft and inner circle are loosely fitting.
The mounting sleeve's outside diameter in the seat hole has to be somewhat less than the hole's width. The inner and outer rings must be forced into the shaft and the seat hole simultaneously if the bearing ring is to be snugly fitted with the shaft and the hole. The mounting sleeve's construction should be able to simultaneously tighten the outer and inner rings of the bearings.

Heat-based

Thermal expansion is utilized to change a tight fit into a loose fit by heating the bearing or bearing seat. It is a popular and time-saving installation technique. Bearings with a high interference quantity can be installed using this approach. The detachable bearing's ferrule is inserted into the oil tank and uniformly heated to 80 to 100 °C. It is then removed from the oil and quickly mounted on the shaft.
axial compression. A hot mounting method with a heated bearing seat can be utilized to avoid scratches on the mating surface when the outer bearing ring is firmly matched with a light metal bearing seat.
A grid should be positioned at a specific distance from the oil tank's bottom for heating the bearing, or the bearing can be suspended using a hook. To avoid contaminants getting inside the bearing or uneven heating, the bearing cannot be positioned on the bottom of the tank. A thermometer has to be present in the tank. To stop the tempering effect and lessen the ferrule's hardness, strictly regulate the oil temperature so that it does not rise over 100 °C.

 

 

 
Our Factory

 

Ningbo New Century Bearing Co., Ltd. was established in October 1987. It is a manufacturer specializing in the production of precision miniature bearings. The registered trademarks are "SX" and "SXA". The company covers an area of 52,000 square meters and a workshop area of 43,000 square meters. The R&D team composed of professional engineers has more than 350 skilled workers, with an annual output of 90 million sets.

The company has its own bearing parts factory, which produces rings, cages, shield and seals, which can deal with flexible and diverse Market demand. The product types mainly include deep groove ball bearings, flange bearings, stainless steel bearings. Bearing precision can reach P5 level (ABEC-5), and the noise can reach Z4V4. Ultra-thin-wall miniature bearings are the company's specialty products.

 

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Asked Questions

 

Q: How do stainless steel non-standard deep groove ball bearings work?

A: Grooves within the inner and outer rings form the raceway. Rolling elements roll within the raceway. The cage spaces the rolling elements apart from each other. Forms the inner part of an anti-friction bearing (the part that presses against the shaft).

Q: What are the 4 major parts of a deep groove ball bearing?

A: Deep Groove Ball Bearing is a common type of bearings and it is used in several industries from heavy machinery to high precision apparatus. This type of bearings consists of four elements that include inner ring, outer ring, cage that holds balls and ball bearings.

Q: What are the benefits of stainless steel bearings?

A: Stainless steel bearings are more expensive but they will run at higher temperatures than chrome steel bearings and are also resistant to corrosion. Stainless steel bearings will cope with up to 300°C with the right lubricant while the load capacity of chrome steel bearings falls rapidly above 150°C.

Q: What is the axial clearance of a deep groove ball bearing?

A: Axial Clearance: The space between the ball and the raceway parallel to the bearing axis. The axial clearance is related to the radial clearance. Depending on the bearing geometry axial clearance is 8.5-10 times the radial clearance.

We're professional stainless steel non-standard deep groove ball bearing manufacturers and suppliers in China. If you're going to wholesale stainless steel non-standard deep groove ball bearing made in China, welcome to get quotation from our factory. Also, customized service is available.

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