China wholesaler Brass Cage Single Row Nu213em Cylindrical Roller Bearing with Hot selling

Product Description


Model Brass Cage Single Row NU213EM Cylindrical roller bearing
  As your requirement, such as open, z,zz,rz, 2rz,rs, 2rs, and so on.
Vibration Z1/V1,Z2/V2,Z3/V3
Precision P6, P0, P5, P4, P2
Internal clearance codes  
C0, C2, C3, C4, C5
Snap ring N, NR
Feature Low voice, High speed, Low friction, long service life
Application Pharmaceutical equipment, medical equipment, textile machinery
and accessories, knitting machines, weaving machines, spinning
equipment, textile accessories, non-woven fabric machinery,
textile equipment, machinery, metal, mold, automotive
electronics, electrical, instrumentation, aviation
aerospace, plastics and rubber industry, medical and other fields.
Package 1,barreled package+outer carton+pallets 
2,single box+outer carton+pallets 
3,tube package+middle box+outer carton+pallets 
4,According to your’s requirement
Details We have a complete process for production and quality assurance to make sure our products can meet your requirement.
2.Windage test
4.Rotary test
5.Greasing and gland
6.Noise inspection
7.Appearance inspection
8.Rust prevention

The cylindrical roller bearing is the radial rolling bearing with the cylindrical rollers. The internal structure of the bearing adopts a parallel arrangement of rollers. This type of bearings is the separable bearing. Separate inner ring and outer ring, which are very convenient to install and disassemble, with the advantage of large radial load capacity and low friction coefficient. 

The bearing can be divided into single-row, double-row, and multi-rows cylindrical roller bearings according to the number of rows of rolling elements. There are also differences in the design of the position of the ribs.


Model List (Please contact with us for more models)



Bearing Number Boundary dimensions(mm) Basic load ratings(kN) Limiting speeds(rpm) Mass(Kg)
    d D B rs min rs1 min Cr Cor Grease Oil (Approx.)
NU10 Series NU1005 25 47 12 0.6 0.3 15.1 14.1 16,000 19,000 0.092
  NU2211E 55 100 25 1.5 1.1 97 114 5,600 6,600 0.968
  NU2212 60 110 28 1.5 1.5 96 116 5,800 6,800 1.06
  NU2212E 60 110 28 1.5 1.5 131 157 5,200 6,100 1.21
  NU2213 65 120 31 1.5 1.5 120 149 5,400 6,300 1.4
  NU2213E 65 120 31 1.5 1.5 149 181 4,800 5,600 1.6
  NU2214 70 125 31 1.5 1.5 119 151 5,000 5,900 1.47
  NU2214E 70 125 31 1.5 1.5 156 194 4,500 5,200 1.7
  NU2215 75 130 31 1.5 1.5 130 162 4,700 5,500 1.55
  NU2215E 75 130 31 1.5 1.5 162 207 4,200 4,900 1.79
  NU2216 80 140 33 2 2 147 186 4,400 5,100 1.93
  NU2216E 80 140 33 2 2 186 243 3,900 4,600 2.12
  NU2217 85 150 36 2 2 170 218 4,100 4,800 2.44
  NU2217E 85 150 36 2 2 217 279 3,700 4,300 2.68
  NU2218 90 160 40 2 2 197 248 3,900 4,600 3.1
  NU2218E 90 160 40 2 2 242 315 3,500 4,100 3.33
  NU2219 95 170 43 2.1 2.1 230 298 3,600 4,300 3.79
  NU2219E 95 170 43 2.1 2.1 286 370 3,300 3,800 4.14
  NU2220 100 180 46 2.1 2.1 258 340 3,500 4,100 4.57
  NU2220E 100 180 46 2.1 2.1 335 445 3,100 3,600 5.01
  NU2222 110 200 53 2.1 2.1 320 415 3,100 3,700 6.56
  NU2222E 110 200 53 2.1 2.1 385 515 2,800 3,300 7.4
  NU2224 120 215 58 2.1 2.1 350 460 2,900 3,400 8.19
  NU2224E 120 215 58 2.1 2.1 450 620 2,600 3,000 9.18
  NU2226 130 230 64 3 3 380 530 2,600 3,100 10.2
  NU2226E 130 230 64 3 3 530 735 2,300 2,700 11.8
  NU2228 140 250 68 3 3 445 635 2,400 2,800 12.9
  NU2228E 140 250 68 3 3 575 835 2,100 2,500 15.8
  NU222E 110 200 38 2.1 2.1 293 365 3,100 3,700 4.27
  NU2230 150 270 73 3 3 500 710 2,200 2,600 16.3
  NU2230E 150 270 73 3 3 660 980 2,000 2,400 19.7

A wide range of applications:

• agriculture and forestry equipment
• automotive and industrial gearboxes
• automotive and truck electric components, such as alternators
• electric motors
• fluid machinery
• material handling
• power tools and household appliances
• textile machinery
• two Wheeler.

Our Bearing Advantage:

1.ISO Standard

2.Bearing Small order accepted

3.In Stock bearing

4.OEM bearing service

5.Professional:20 years manufacture bearing

6.Customized bearing, Customer’s bearing drawing or samples accepted

7.Competitive price bearing

8.TT Payment or Western Union or PayPal

Our Company

Packaging Details 1 piece in a single box
50 boxes in a carton
20 cartons in a pallet
Nearest Port ZheJiang or HangZhou
Lead Time For stock parts: 1-5 days.
If no stock parts:
<200 pcs: 15-30 days
≥200 pcs: to be negotiated.


1.How do you make our business long-term and good relationship? 
– We keep good quality and competitive price to ensure our customers benefit ;
– We respect every customer as our friend and we sincerely do business and make friends with them,
  no matter where they come from.


2.Do you test all your goods before delivery?
– Yes, we have 100% test before delivery


3.What products does your company supply?
– Auto Bearings (Wheel Bearings, Wheel Hub Bearings, Clutch Bearings, Belt Tensioners and Water Pump Bearings etc. )    

-Industrial Bearings (Deep Groove Ball Bearings, Tapered Roller Bearings and Pillow Block Bearings).

Types of V-Belts and Their Properties

A v-belt’s inside length and pitch are determined by measuring along the bottom side. The included angle of a v-belt is measured from its flanks when it is extended. Most v-belt sections are 40 degrees. There are different types of v-belts, and the dimensions of each are standardized by different organizations. This article will introduce the different types of v-belts and their properties.

Notched v-belts reduce bending stress

Notched V-belts reduce bending stress by reducing the axial length of the belt by 2 or more notches. These notches are characterized by different profiles, which differ in the pitch angle and the inside length. ISO and DIN standards are followed by the manufacturers of these belts. Notched v-belts are used on industrial machinery in countries other than the US.
Compared to the standard V-belts, notched ones are designed to resist bending stress better and offer better heat dissipation. They also last longer and run cooler than standard V-belts. Furthermore, they are about 2 percent more energy efficient than their standard counterparts. Therefore, notched V-belts are a viable replacement for standard V-belts.
Notched V-belts are commonly used in industrial applications because of their low price, ease of installation, and availability of many sizes. Another advantage of notched V-belts is that they provide more wedging force and higher load capacity. Notched V-belts have a wider v-groove than flat ones, which makes them more effective for heavy-duty applications.
Notched V-belts also provide better traction. They reduce bending stress, which is beneficial for preventing fatigue and tearing of v-belts. Additionally, v-belts can be installed in an existing equipment to add more performance. And with proper maintenance and installation, notched V-belts will provide trouble-free service for many years to come.

Ribbed v-belts reduce heat dissipation

Various kinds of v-belts are available for varying applications. The more popular types are the fractional horsepower and the double-V. Fractional horsepower v-belts are designed for light-duty applications, such as machine shop equipment and household appliances. The common sectional names are 2L, 3L, 4L, and 5L. The L in each of these belts refers to the top width of the belt, multiplied by 1 eighth inch.
Unlike conventional belts, ribbed v-belts are flexible, making them ideal for use in vibrating loads. They reduce heat dissipation and can be ordered in single or multiple sets to match your application. However, ribbed v-belts should not be mounted on deep-groove sheaves, as this can cause the belt to turn over. If you use deep-groove sheaves, the risk of rupture is very high. Deep-groove sheaves can also cut banded belts. Extremely worn sheaves can also cause the belt to rip.
The 2 types of ribbed v-belts differ in their construction and application. While both types have trapezium cross-sections, they are similar in that they are made of polyurethane or other durable materials. Ribbed v-belts have an additional layer of fabric on the elastomer core for reduced noise and better heat dissipation.
Ribbed v-belts are available in a variety of sizes, including trough v-belts. Their cross-sections are categorized by their top and bottom widths and depths. The included angle of most v-belt sections is approximately 40 degrees. Different types of v-belts have different cross-sections, and these cross-sections are standardized by various organizations.
As the load increases, a ribbed v-belt will wedge into the groove and decrease the amount of friction needed to maintain the correct torque. Flat belts can track off the pulleys due to friction. However, V-belts are more stable and require less width than flat belts. The main advantage of ribbed v-belts is their increased efficiency.
The global-local finite-element model is also used to calculate the maximum and minimum J-integrals during a belt’s running cycle. The data is then used to evaluate the durability of ribbed v-belts in various applications. The numerical models used for the calculations involve a ribbed V-belt with 5 full ribs.

Cogged v-belts increase lateral rigidity to reduce belt whip

Cogged v-belts are designed for maximum performance and durability on even the harshest drive systems. These belts are made from high-modulus polyester cords that resist hardening and stretch and provide superior balance and strength. They also feature raw-edge sidewalls to reduce slip and drive vibration. In addition, they have specially-formulated rubber compounds for oil resistance. CZPT Cog-Belt offers substantial savings in downtime, energy consumption and horsepower.
A double cogged v-belt combines the benefits of cogged and double vee-belts. Its bonded reinforced tie band offers enhanced flexibility and reduces belt whipping in multiple-belt drives. Double cogged v-belt dimensions vary depending on the standards of the manufacturer. Regardless of the type, you’ll want to use a belt that is aligned correctly.
Standard v-belts are also known as wrapped or raw edge v-belts. Wrapped V-belts feature fabric covers above and beneath the cord to increase lateral rigidity and reduce belt whip. Cogged V-belts also have fabric covers to prevent wear on the core and increase the belt’s operating temperature. They’re ideally suited for applications that require high-temperature operation.
Cogged V-belts can significantly decrease energy consumption and improve power transmission capabilities. They also have a bias-cut cover stock that provides axial and lateral stability while preserving the cord integrity. A fiber loaded cogged construction offers optimum flexibility while minimizing heat buildup. It can be installed on any type of drive, including chain conveyors and industrial-grade machines.
The two-layer tie-band permanently bonds multiple belts together. This provides maximum cord support, heavy shock absorption, and stability. The belts are also engineered with patented banding processes that eliminate belt turnover and distribute load evenly across the drive. CZPT Cog-Band Belts minimize belt whip and provide stability. They also minimize belt turnover and rollover in heavy-duty industrial applications.
A classic v-belt is the most common and economical belt. Its nominal dimensions are 1/2″ to 1-11/2″ wide and 16″ to 400 inches long. The width is usually 40 degrees. Different organizations use different cross-sections to classify v-belts. The following table provides a general comparison of the 2 types. The Cogged V-Belt is designed to reduce belt whip by increasing the lateral rigidity of the belt.

Cogged v-belts provide superior environmental resistance

The patented design of the Dayco V-Belt provides maximum power transmission while combining the benefits of a cogged belt and raw-edge construction. The belt’s top cogged design helps increase air flow around it, preventing deterioration and extending its useful life. The belt’s three-ply design features neoprene impregnated fabric for superior durability and a specially-formulated polyester cord for increased strength and stability.
A variety of v-belts are available, with cogged and notched versions presenting unique characteristics. Cogged V-belts are more flexible than uncogged versions and feature ‘X’-shaped grooves for enhanced heat dissipation. Cogged V-belts are interchangeable with conventional v-belts, although their ‘X’ design is most common. Hexagonal v-belts are a popular option for applications where traction is needed.
Another type of Cogged V-belt is designed specifically for outdoor power equipment. This v-belt is brown, with smooth clutching covers. Its aramid cord is very strong and provides superior durability in adverse conditions. Cogged V-belts can withstand severe shock loads and are therefore ideal for outdoor power equipment. Furthermore, they offer superior environmental resistance, minimal stretch, and a long service life.
A Cogged V-belt is composed of tensile cords that are supported by a rubber stock. Different manufacturers use different synthetic rubber stocks for this purpose. These materials help to extend the belt’s operating temperature range and resist premature failure. In addition to tensile cords, the belt’s body is covered with a fabric cover. The fabric is treated to form a chemical bond with the core materials, which allows it to withstand constant bending.

China wholesaler Brass Cage Single Row Nu213em Cylindrical Roller Bearing     with Hot sellingChina wholesaler Brass Cage Single Row Nu213em Cylindrical Roller Bearing     with Hot selling