China best Bag Loom Roller Roller Bearing for RV Speed Reducer/Industrial Robot Natv25 deep groove ball bearing

Product Description

HangZhou Nanter Bearing Co., Ltd. specializes in the production and sales of needle roller bearings. There are 5,000 specifications and varieties of needle roller bearings ranging from inner diameter 3mm to outer diameter 350mm, including drawn cup needle roller bearings: HK, BK, SCE, SCH, B, BH, BHM, F, FY and other series, cage bearings: K, KZK and other series, one-way clutch needle roller bearings: HF, HFL, RC, RCB and other series, thrust needle roller bearings: NTA, TRA, TRB, TRC ,TRD, AXK, AS and other series, solid ring needle roller bearings: NA, RNA, NK, NKI, MR, Ml, NKS, NKIS and other series, inner and outer rings: IR, LR, Ml and other series , cylindrical roller bearings: N, NF, NU, NUP, NUPK, SL01, SL02, SL18, SL19, SL04 and other series, support rollers, bolt rollers: KR, STO, NUTR, NATR, NUKR, CF, CFH, CYR, etc. series, solid ring needle roller bearings: NK, NKI, RNA, NA, NKS, NKIS, MR, Ml metric and imperial series, combined radial-thrust bearings: NKIA, NKIB, NX, NKZ, NKXR series, water pump shaft Connected bearings: WR, WB series, and can design and develop various types of bearings suitable for users’ specific requirements according to users’ requirements.
Bearing products are widely used in automobiles, motorcycles, electric/pneumatic tools, light industrial machinery, engineering machinery, printing machinery, machine tool industry, packaging machinery and other fields.
The company always regards customer satisfaction as the driving force and unremitting pursuit, and all employees continue to fulfill their commitments to customers.
For more products and information, please visit the official website  

Supporting Roller Bearing

Model NATR, NATR—PP Supporting Roller Bering
Model NATV, NATV–PP Supporting Roller Bering
Model NATR supporting roller bearing includes outer ring, inner ring, needle cage assembly and baffle ring pressed and fixed in both sides of inner ring. Model NATR—PP support roller bearing has the seal ring. It has a large grease-storage space and can be used for a long time without adding lubricating grease.
The structure of Model NATV supporting roller bearing is same as that of Model NATR. Model NATV is the bearing with full of needles. It can withstand heavy load under the low speed. However it is necessary to add the lubricating grease at regular intervals. Model NATV—PP supporting roller needle bearing has the seal ring structure.
If the surface of outer ring is cylinder face, the letter X shall be added after designation of bearing.


Shaft Diameter Bearing Designation Boundary Dimensions Basic Load Rating Limiting Speed
without inner ring with inner ring d D B C d1 rs Dynamic Static As yoke type track rollers
Cw Cow
mm Without inner ring With inner ring mm min N rpm
16 NATR5 NATR 5 PP 5 16 12 11 12 0.15 3800 3750 3150 3300 •22000
NATV5 NATV 5 PP 5 16 12 11 12 0.15 6400 8500 4850 6500 8500
19 NATR6 NATR 6 PP 6 19 12 11 14 0.15 4250 4600 3500 3900 ,20000
NATV6 NATV6PP 6 19 12 11 14 0.15 7300 10800 5500 7900 7000
  NATR8 NATR 8 PP 8 24 15 14 19 0.3 6800 7700 5500 6400 •15000
  NATV8 NATV 8 PP 8 24 15 14 19 0.3 10400 15600 7800 11400 5500
30 NATR10 NATR 10 PP 10 30 15 14 23 0.6 8100 9700 6800 8400 11000
NATV10 NATV 10 PP 10 30 15 14 23 0.6 12200 19000 9500 14600 4500
32 NATR 12 NATR 12 PP 12 32 15 14 25 0.6 8700 11000 6900 8800 9000
NATV12 NATV 12 PP 12 32 15 14 25 0.6 13200 21700 9700 15400 3900
35 NATR 15 NATR 15 PP 15 35 19 18 27 0.6 12900 19000 9700 14100 7000
NATV15 NATV 15 PP 15 35 19 18 27 0.6 18300 35000 12800 23000 3400
  NATR 17 NATR 17 PP 17 40 21 20 32 1 14200 20400 10900 15500 6000
40 NATV17 NATV 17 PP 17 40 21 20 32 1 21000 39500 14800 26500 2900
  NATR 20 NATR 20 PP 20 47 25 24 37 1 19500 32000 15500 25500 4900
47 NATV20 NATV 20 PP 20 47 25 24 37 1 28000 59000 20600 42000 2600
52 NATR 25 NATR 25 PP 25 52 25 24 42 1 21200 38000 15400 26500 3600
NATV25 NATV 25 PP 25 52 25 24 42 1 31000 72000 20500 44000 2100
62 NATR 30 NATR 30 PP 30 62 29 28 51 1 34000 59000 23600 38500 2600
NATV30 NATV 30 PP 30 62 29 28 51 1 48500 108000 30500 63000 1700
  NATR 35 NATR 35 PP 35 72 29 28 58 1.1 37000 69000 25500 44500 2000
72 NATV35 NATV 35 PP 35 72 29 28 58 1.1 53000 127000 33000 73000 1400
  NATR 40 NATR 40 PP 40 80 32 30 66 1.1 49000 94000 33000 59000 1700
80 NATV40 NATV 40 PP 40 80 32 30 66 1.1 66000 159000 41000 90000 1300
85 NATR 45 NATR 45 PP 45 85 32 30 72 1.1 51000 157100 32500 59000 1500
90 NATR 50 NATR 50 PP 50 90 32 30 76 1.1 52000 108000 32000 59000 1300
NATV50 NATV 50 PP 50 90 32 30 76 1.1 72000 191000 40500 93000 1000

   Q1: Can I get a free sample?
A1: We provide samples free in freight collected. For special samples requirement, please contact us for more details. 
Q2: How could I pay?
A2: We prefer T/T or L/C at sight. If you prefer other payment terms, please contact us freely.
Q3: What is your brand and packing way? Can you produce my brand and packing?
A3: Our brand is SGC and our own packing materials. We can make your brand. For more details, please contact us.
Q4: What is the delivery lead time?
A4: It depends on the order quantities. The mass production lead time is about 45-60 days after receipt of the deposit. 
Q5: Are you manufacturer or  trading company?
A5: We are manufacturer and exporter. We provide all kinds of OEM services for clients around the world.
Q6: Where is your main market?
A6: We export to the North America, Mexico, Australia, South-east Asia, Europe, U.A.E., Turkey, and other countries.

Our Services
1. Professional QC and QA team to make sure all products qualified before shipping.
2. Competitive price.
3 .Standard package to ensure the safe transportation.
4. Professional service.

Why choose us?
1. Production
    Qualified production, competitive price, professional service. 
2. Quality
    All products are inspected 100% before shipment by relative testing equipments.
3.The 24/7 service allows you to obtain the best solution in the shortest possible time for the problems you encounter in the field of industry and bearings.
4.For the needs of the industrial field and bearing products, we have made a series of solutions, from product selection to correct installation after ordering, we will give you the most timely answers and solutions for every problem you encounter.


Cage: With Cage
Rows Number: Multiple
Load Direction: Radial Bearing
Style: Without Outer Ring, Without Inner Ring
Material: Stainless Steel
Type: Open
US$ 2/Piece
1 Piece(Min.Order)

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Customized Request


Materials Used in Bearings

If you’re not familiar with the types of bearings, you may be interested in knowing more about the materials used to manufacture them. Here’s a look at what each type of bearing is made of, how it’s used, and how much they cost. To find the right bearing for your application, it’s important to choose a quality lubricant. The materials used in bearings are determined by their type and applications. Choosing the right lubricant will extend its life, and protect your machine’s parts from damage and premature wear.

Materials used in bearings

Bearings are made from a variety of materials. Stainless steel is a common material used for the components of bearings. It has a higher content of chromium and nickel. When exposed to oxygen, chromium reacts with it to form chromium oxide, which provides a passive film. For higher temperatures, teflon and Viton are also used. These materials offer excellent corrosion resistance and are often preferred by manufacturers for their unique properties.
Stainless steel is another material used in bearings. AISI 440C is a high-carbon stainless steel commonly used in rolling-contact bearings. It is widely used in corrosive environments, especially in applications where corrosion resistance is more important than load capacity. It can also be heat-treated and hardened to 60 HRC, but has lower fatigue life than SAE 52100. Stainless steel bearings may carry a 20-40% price premium, but their superior performance is worth the extra money.
Graphite and molybdenum disulfide are two of the most common materials used in bearings. While graphite is a popular material in bearings, it has very poor corrosion resistance and is unsuitable for applications where oil or grease is required. Graphite-based composite materials are another option. They combine the benefits of both graphite and ceramic materials. A variety of proprietary materials have been developed for high-temperature use, such as graphite and MoS2.
Wood bearings have been around for centuries. The oldest ones used wood and Lignum Vitae. These materials were lightweight, but they were incredibly strong and durable. Wood bearings were also lubricated with animal fats. During the 1700s, iron bearings were a popular choice. In 1839, Isaac Babbitt invented an alloy containing hard metal crystals suspended in a softer metal. It is considered a metal matrix composite.

Applications of bearings

Bearings are used in many different industries and systems to help facilitate rotation. The metal surfaces in the bearings support the weight of the load, which drives the rotation of the unit. Not all loads apply the same amount of force to bearings, however. Thrust and radial loads act in distinctly different ways. To better understand the different uses of bearings, let’s examine the various types of bearings. These versatile devices are essential for many industries, from automobiles to ships and from construction to industrial processes.
Cylindrical roller bearings are designed to support heavy loads. Their cylindrical rolling element distributes the load over a larger area. They are not, however, suited to handling thrust loads. Needle bearings, on the other hand, use small diameter cylinders and can fit into tighter spaces. The advantages of these types of bearings are numerous, and many leading producers are now leveraging the Industrial Internet of Things (IIoT) to develop connected smart bearings.
As a power generation industry, bearings play an essential role. From turbines to compressors, from generators to pumps, bearings are essential components of equipment. In addition to bearings, these components help move the equipment, so they can work properly. Typically, these components use ball bearings, although some roller bearings are used as well. In addition to being efficient and durable, these types of bearings also tend to be built to meet stringent internal clearance requirements and cage design requirements.
In addition to bearings for linear motion, bearings can also bear the weight of a rotary part. Depending on the application, they can be designed to minimize friction between moving parts. By constraining relative motion, bearings are used to reduce friction within a given application. The best-designed bearings minimize friction in a given application. If you’re in the market for a new bearing, NRB Industrial Bearings Limited is an excellent source to begin your search.

Types of bearings

The type of bearings you choose will have a significant impact on the performance of your machinery. Using the right bearings can increase efficiency, accuracy, and service intervals, and even reduce the cost of purchasing and operating machinery. There are several different types of bearings to choose from, including ball bearings and flexure bearings. Some types use a fluid to lubricate their surfaces, while others do not.
Plain bearings are the most common type of bearing, and are used for a variety of applications. Their cylindrical design allows for a relatively smooth movement. Often made of copper or other copper alloy, they have low coefficients of friction and are commonly used in the construction industry. Some types of plain bearings are also available with a gudgeon pin, which connects a piston to a connecting rod in a diesel engine.
Magnetic bearings are the newest type of bearing. They use permanent magnets to create a magnetic field around the shaft without requiring any power. These are difficult to design, and are still in the early stages of development. Electromagnets, on the other hand, require no power but can perform very high-precision positioning. They can be extremely durable and have a long service life. They are also lightweight and easy to repair.
Another type of bearing is needle roller. These are made of thin, long, and slender cylinders that are used in a variety of applications. Their slender size is ideal for a space-constrained application, and their small profile allows them to fit in tight places. These types of bearings are often used in automotive applications, bar stools, and camera panning devices. They have several advantages over ball bearings, including the ability to handle heavy axial loads.

Cost of bearings

A wide range of factors affect the cost of aerospace bearings, including the bearing material and its volatility. Manufacturers typically use high-grade steel for aircraft bearings, which are highly affected by fluctuations in the steel price. Government policies also play a part in the variation in trade price. The implementation of COVID-19 has changed the market dynamics, creating an uncertain outlook for supply and demand of aerospace bearings. New trade norms and transportation restrictions are expected to hamper the growth of this industry.
Demand for aerospace bearings is largely driven by aircraft manufacturers. In North America, aircraft manufacturers must meet extremely high standards of weight, performance, and quality. They also must be lightweight and cost-effective. This has resulted in a rising cost of aerospace bearings. The market for aerospace bearings is expected to grow at the highest CAGR over the next few years, driven by increasing investments in defense and aerospace infrastructure across Asia-Pacific.
Hub assemblies are also expensive. A wheel hub will cost between $400 and $500 for one set of bearings. In addition to this, the speed sensor will be included. The average cost of wheel bearings is between $400 and $500 for one side, including labor. But this price range is much lower if the bearing is a replacement of an entire wheel assembly. It is still worth noting that wheel hub bearings can be purchased separately for a lower price.
Replacement of one or two wheel bearings will depend on the model and year of the vehicle. For a small car, one rear wheel bearing can cost between $190 and $225, whereas two front wheel hubs can cost upwards of $1,000. Labor and parts prices will vary by location, and labor costs may also be covered under some warranty plans. If you decide to have it done yourself, be sure to ask multiple shops for estimates.

Inspection of bearings

To maintain bearing performance and prevent accidents, periodic inspections are essential. In addition to ensuring reliability, these inspections improve productivity and efficiency. Regular maintenance includes disassembly inspection, replenishment of lubricant and monitoring operation status. Here are some common ways to perform the necessary inspections. Keep reading to learn how to maintain bearings. After disassembly, you must clean the components thoroughly. Ensure that the bearings are free of burrs, debris, and corrosion.
Ultrasound technology is an excellent tool for monitoring slow-speed bearings. Most ultrasound instruments offer wide-ranging sensitivity and frequency tuning. Ultrasound can also be used to monitor bearing sound. Ultra-slow bearings are usually large and greased with high-viscosity lubricant. Crackling sounds indicate deformity. You can also listen for abnormal noise by plugging a vibration analyzer into the machine. Once the machine shows abnormal noise, schedule additional inspections.
Ultrasonic inspection involves using an ultrasound transducer to measure the amplitude of sound from a bearing. It is effective in early warnings of bearing failure and prevents over-lubrication. Ultrasound inspection of bearings is a cost-effective solution for early diagnosis of bearing problems. In addition to being a reliable tool, ultrasonic testing is digital and easy to implement. The following are some of the advantages of ultrasonic bearing inspection.
Dynamic quality evaluation involves the use of a special fixture for measuring bearing deformations under low shaft speed and light radial load. The size of the fixture influences the value of the deformations. A fixture should be sized between the diameter of the sensor and the roller to ensure maximum precision. The outer deformation signal is more sensitive with a larger sensor diameter. A vibration-acceleration sensor is used for the contrast test.

China best Bag Loom Roller Roller Bearing for RV Speed Reducer/Industrial Robot Natv25   deep groove ball bearingChina best Bag Loom Roller Roller Bearing for RV Speed Reducer/Industrial Robot Natv25   deep groove ball bearing
editor by CX 2023-04-21

Thrust Roller Bearing

As one of the leading thrust roller bearing manufacturers, suppliers, and exporters of mechanical products, We offer thrust roller bearing and many other products.

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