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China Custom CZPT Needle Roller Bearings Nk85/25 Nk85/35 Rna4916 Rna6916 Nk90/25 Nk90/35 Nk95/26 Nk95/36 Rna4917 Rna6917 Nk100/26 Nk100/36 Rna4918 Rna6918 wholesaler

Product Description

IKO  needle roller bearings NK85/25 NK85/35 RNA4916 RNA6916 NK90/25 NK90/35 NK95/26 NK95/36 RNA4917 RNA6917 NK1 LS 1 LS 110145 GS 81122 WS 81122 110 112 145 145 120 AXK120155 AS 120155 LS 120155 GS 81124 WS 81124 120 122 155 155 130 AXK130170 AS 130170 LS 130170 GS 81126 WS 81126 130 132 170 170 140 AXK140180 AS 140180 LS 140180 GS 81128 WS 81128 140 142 180 178 150 AXK150190 AS 150190 LS 150190 GS 81130 WS 81130 150 152 190 188 160 AXK165710 AS 165710 LS 165710 GS 81132 WS 81132 160 162 200 198

Shaft Diameter Bearing Designation Body Dimensions Basic Load Rating Limiting Speed Mass
d D Dw B Cr Dynamic Cor     Static
mm mm N rpm g
10 NTB1571 10 24 2 2.75 7820 23900 15000 3.3
12 NTB1226 12 26 2 2.75 8340 26900 13000 3.8
15 NTB1528 15 28 2 2.75 8830 29900 12000 4.1
16 NTB1629 16 29 2 2.75 9070 31400 11000 4.3
17 NTB1730 17 30 2 2.75 9320 32900 11000 4.5
18 NTB1831 18 31 2 2.75 9550 34400 10000 4.7
20 NTB2035 20 35 2 2.75 11700 46500 9000 6.1
25 NTB2542 25 42 2 3 14400 64700 7500 8.2
30 NTB3047 30 47 2 3 15400 73300 6500 9.4
35 NTB3552 35 52 2 3.5 16300 81900 5500 10.6
40 NTB40603 40 60 3 3.5 24200 108000 5000 22
45 NTB4565 45 65 3 4 25900 121000 4500 24.5
50 NTB5070 50 70 3 4 27600 135000 4000 26.5
55 NTB5578 55 78 3 5 32400 171000 4000 33.5
60 NTB6085 60 85 3 4.75 38200 219000 3500 38.5
65 NTB6590 65 90 3 5.25 45710 237000 3000 41.5
70 NTB7095 70 95 4 5.25 47400 244000 3000 61
75 NTB75100 75 100 4 5.75 48400 256000 3000 65
80 NTB85715 80 105 4 5.75 49500 267000 2500 68.5
85 NTB85110 85 110 4 5.75 50300 279000 2500 72
90 NTB90120 90 120 4 6.5 64500 394000 2500 92
100 NTB100135 100 135 4 7 80300 541000 2000 119
110 NTB110145 110 145 4 7 83200 578000 2000 129
120 NTB120155 120 155 4 7 87900 634000 1800 139
130 NTB130170 130 170 5 9 20000 839000 1700 225

K3X5X7-TN K18X24X13 K30X40X30 K55X62X18
K3X5X9-TN K18X24X20 K32X37X13 K55X63X20
K3X6X7-TN K18X25X22 K32X37X17 K55X63X25
K4X7X7-TN K19X23X13 K32X37X27 K55X63X32
K4X7X10-TN K19X23X17 K32X38X20 K58X65X18
K5X8X8-TN K20X24X10 K32X39X16 K60X65X20
K5X8X10-TN K20X24X13 K32X39X18 K60X65X30
K6X9X8-TN K20X24X17 K32X40X25 K60X68X20
K6X9X10-TN K20X26X12 K32X46X32 K60X68X23
K6X10X13-TN K20X26X13 K35X40X13 K60X68X25
K7X9X7-TN K20X26X17 K35X40X17 K60X75X42
K7X10X8-TN K20X26X20 K35X40X25 K64X70X16
K7X10X10-TN K20X28X16 K35X40X27-TN K65X70X20
K8X11X8-TN K20X28X20 K35X40X27 K65X70X30
K8X11X10-TN K20X28X25 K35X42X16 K65X73X23
K8X11X13-TN K20X30X30 K35X42X18 K65X73X30
K8X12X10-TN K21X25X13 K35X42X20 K68X74X20
K9X12X10-TN K22X26X10 K35X42X30 K68X74X30
K9X12X13-TN K22X26X13 K35X45X20 K70X76X20
K10X13X10-TN K22X26X17 K35X45X30 K70X76X30
K10X13X13-TN K22X28X17 K37X42X17 K70X78X30
K10X13X16-TN K22X29X16 K38X43X17 K72X80X20
K10X14X10-TN K22X30X15-TN K38X43X27 K73X79X20
K10X14X13-TN K22X32X24 K38X46X20 K75X81X20
K10X16X12-TN K23X35X16-TN K38X46X32 K75X81X30
K12X15X10-TN K23X35X16 K40X45X13 K75X83X23
K12X15X13-TN K24X28X10 K40X45X17 K75X83X30
K12X16X13-TN K24X28X13 K40X45X27 K80X86X20
K12X17X13-TN K24X28X17 K40X47X18 K80X88X30
K12X18X12-TN K24X30X17 K40X47X20 K85X92X20
K14X18X10 K25X29X10 K40X48X20 K90X97X20
K14X18X13 K25X29X13 K42X47X13 K90X98X27
K14X18X15-TN K25X29X17 K42X47X17 K90X98X30
K14X18X17 K25X30X13 K42X50X20 K95X103X30
K14X20X12 K25X30X17 K43X48X17 K100X107X21
K15X18X17-TN K25X30X20 K43X48X27 K100X108X27
K15X18X17 K25X31X17 K45X50X17 K100X108X30
K15X19X10 K25X31X21 K45X50X27 K105X112X21
K15X19X13 K25X32X16 K45X52X18 K110X117X24
K15X19X17 K25X33X20 K45X53X20 K110X118X30
K15X20X13 K25X33X24 K45X53X21 K115X123X27
K15X21X15 K25X35X30 K45X53X28 K120X127X24
K15X21X21 K26X30X13 K45X59X18-TN K125X133X35
K16X20X10 K26X30X17 K45X59X32 K130X137X24
K16X20X13 K28X33X13 K47X52X17 K135X143X35
K16X20X17 K28X33X17 K47X52X27 K145X153X26
K16X22X12 K28X34X17 K50X55X13,5 K150X160X46
K16X22X16 K28X35X16 K50X55X17 K155X163X26
K16X22X20 K28X35X18 K50X55X20 K160X170X46
K16X24X20 K28X40X25 K50X55X30 K165X173X26
K17X21X10 K30X34X13 K50X57X18 K175X183X32
K17X21X13 K30X35X13 K50X58X20 K185X195X37
K17X21X17 K30X35X17 K50X58X25 K195X205X37
K18X22X10 K30X35X27 K52X57X12 K210X220X42
K18X22X13 K30X37X16 K55X60X20 K220X230X42
K18X22X17 K30X37X18 K55X60X27 K240X250X42
K18X24X12 K30X40X18 K55X60X30 K265X280X50

Our Products Lines:
1. Deep groove ball bearings (68series,69series,60series,62series,63series,64series)
2.Tapered roller bearing(320 series,322 series,323 series)
3.Linear bearing
4.Thrust ball bearing(511 series,512 series,513 series)
5.Cylindrical roller bearing(NU10 series, NJ2 Series, N3 series, NN series)
6.Needle roller bearing
7.Angular contact ball bearing(70 series.72 series.73 series.74 series)
8.Spherical roller bearing
9.Thurst roller bearing
10.Spherical ball bearing(230 series,222series,223series)
11.pillow block bearing(UCP series, UCF series, UCT series, UCFL series)

Why Chose Us?

  1. Excellent and high-quality control, high speed, low noise, long life
    2free sample bearing 
    3.Prompt delivery
    4.Competitive price
    5.Small order accepted
    6.Customers’ drawing or samples accepted
    7.OEM service
    8.ISO Standard 
    9.Professional:12 years manufacture bearing

Packing :
1, Industrial Packing: Polybag / plastic tubes + outer carton box + pallet
2, Commercial packing: Single box + outer carton box + Pallet
3-10 days if in stock 
15-30 days if stock is not enough, depend on the quantity request

Q: Are you a trading company or manufacturer?

A: We are factory of the bearing in china

Q: How long is your delivery time?

A: Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock,
it is according to the quantity of the bearing china.

Q: Do you provide samples? is it free or extra?

A: Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q: What are your terms of payment?

A: Payment=10000USD, 30% T/T in advance ,
balance before shippment.
If you have another question, pls feel free to contact us.


Cage: With Cage
Rows Number: Single
Load Direction: Radial Bearing
Style: With Outer Ring, Without Inner Ring
Material: Bearing Steel
Type: Open


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 Custom CZPT Needle Roller Bearings Nk85/25 Nk85/35 Rna4916 Rna6916 Nk90/25 Nk90/35 Nk95/26 Nk95/36 Rna4917 Rna6917 Nk100/26 Nk100/36 Rna4918 Rna6918   wholesalerChina Custom CZPT Needle Roller Bearings Nk85/25 Nk85/35 Rna4916 Rna6916 Nk90/25 Nk90/35 Nk95/26 Nk95/36 Rna4917 Rna6917 Nk100/26 Nk100/36 Rna4918 Rna6918   wholesaler
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