Product Description

Product Description:

Cylindrical roller bearing is separable. As their rollers linearly come into contact with inner ring and orter ring with less coefficient of friction, these bearings have very good capacity of radial load, suitable for electric metors, automobiles, transmission shafts, gear shafts and so on. Double row cylimdrical roller bearings are good at the spindles of machine tools.
Basic parameter:Best quality N311 Cylindrical roller bearing N311 with good price 
There are mainly including the above 4 types for  cylindrical roller bearings.

Brand ZGXSY or All Imported famous brand
Name Cylindrical roller bearing
Material GCr15SiMn, GCr15, G20Cr2Ni4,9Cr18
Certificate  ISO9001:2008
Precision P0, P6, P5, P4, P2
ID Size: 35mm-1280mm
Clearance C0,C1,C2,C3,C4,C5 etc.
Seals Type RS, 2RS, Z, 2Z, 2RZ etc
Basic Rated Load (KN) A. Dynamic: 8.35-1488-
B. Static: 5.5-2480-
Limit Speed(r/min) A. Grease 15000-2480-
B. Oil 19000-700- 
Features Low price,high speed,long life
Application widely used in automobile, electrical equipment, instrument, building machinery, rolling stock agricultural machinery and various specialized machineries,machine spindle application and are used for cool and hot mills.
Delivery Time 2-5 days
Package card board package, pallet, wooden case or according to the requirement of the customers

No.   Type   BD OD Width Weight
N NF NJ NUP (mm) (mm) (mm) (kg)
NU204E N204E NF204E NJ204E NUP204E 20 47 14 0.117
NU2204E N2204E NF2204E NJ2204E NUP2204E 20 47 18 0.149
NU2304E N2304E NF2304E NJ2304E NUP2304E 20 52 21 0.216
NU205E N205E NF205E NJ205E NUP205E 25 52 15 0.14
NU2205E N2205E NF2205E NJ2205E NUP2205E 25 52 18 0.168
NU2305E N2305E NF2305E NJ2305E NUP2305E 25 62 24 0.355
NU206E N206E NF206E NJ206E NUP206E 30 62 16 0.214
NU2206E N2206E NF2206E NJ2206E NUP2206E 30 62 20 0.268
NU2306E N2306E NF2306E NJ2306E NUP2306E 30 72 27 0.538
NU207E N207E NF207E NJ207E NUP207E 35 72 17 0.311
NU2207E N2207E NF2207E NJ2207E NUP2207E 35 72 23 0.414
NU2307E N2307E NF2307E NJ2307E NUP2307E 35 80 31 0.738
NU208E N208E NF208E NJ208E NUP208E 40 80 18 0.394
NU2208E N2208E NF2208E NJ2208E NUP2208E 40 80 23 0.507
NU2308E N2308E NF2308E NJ2308E NUP2308E 40 90 33 0.974
NU209E N209E NF209E NJ209E NUP209E 45 85 19 0.45
NU2209E N2209E NF2209E NJ2209E NUP2209E 45 85 23 0.55
NU2309E N2309E NF2309E NJ2309E NUP2309E 45 100 36 1.34
NU210E N210E NF210E NJ210E NUP210E 50 90 20 0.505
NU2210E N2210E NF2210E NJ2210E NUP2210E 50 90 23 0.59
NU2310E N2310E NF2310E NJ2310E NUP2310E 50 110 40 1.79
NU211E N211E NF211E NJ211E NUP211E 55 100 21 0.68
NU2311E N2311E NF2311E NJ2311E NUP2311E 55 120 43 2.28
NU212E N212E NF212E NJ212E NUP212E 60 110 22 0.86
NU2212E N2212E NF2212E NJ2212E NUP2212E 60 110 28 1.12
NU2312E N2312E NF2312E NJ2312E NUP2312E 60 130 46 2.81
NU213E N213E NF213E NJ213E NUP213E 65 120 23 1.08
NU2213E N2213E NF2213E NJ2213E NUP2213E 65 120 31 1.48
NU2313E N2313E NF2313E NJ2313E NUP2313E 65 140 48 3.34
NU214E N214E NF214E NJ214E NUP214E 70 125 24 1.2
NU2214E N2214E NF2214E NJ2214E NUP2214E 70 125 31 1.56
NU2314E N2314E NF2314E NJ2314E NUP2314E 70 150 51 4.1
NU215E N215E NF215E NJ215E NUP215E 75 130 25 1.32
NU2215E N2215E NF2215E NJ2215E NUP2215E 75 130 31 1.64
NU2315 N2315 NF2315 NJ2315 NUP2315 75 160 55 5.4
NU216E N216E NF216E NJ216E NUP216E 80 140 26 1.58
NU2216E N2216E NF2216E NJ2216E NUP2216E 80 140 33 2.05
NU2316 N2316 NF2316 NJ2316 NUP2316 80 170 58 6.4
NU217E N217E NF217E NJ217E NUP217E 85 150 28 2
NU2217E N2217E NF2217E NJ2217E NUP2217E 85 150 36 2.58
NU2317 N2317 NF2317 NJ2317 NUP2317 85 180 60 7.4
NU218E N218E NF218E NJ218E NUP218E 90 160 30 2.44
NU2218E N2218E NF2218E NJ2218E NUP2218E 90 160 40 3.26
NU2318 N2318 NF2318 NJ2318 NUP2318 90 190 64 8.4
NU219E N219E NF219E NJ219E NUP219E 95 170 32 2.96
NU2219E N2219E NF2219E NJ2219E NUP2219E 95 170 43 3.97
NU2319 N2319 NF2319 NJ2319 NUP2319 95 200 67 10.4
NU220E N220E NF220E NJ220E NUP220E 100 180 34 3.58
NU2220E N2220E NF2220E NJ2220E NUP2220E 100 180 46 4.86
NU2320 N2320 NF2320 NJ2320 NUP2320 100 215 73 13.5
NU221 N221 NF221 NJ221 NUP221 105 190 36 4
NU222E N222E NF222E NJ222E NUP222E 110 200 38 5.02
NU2222 N2222 NF2222 NJ2222 NUP2222 110 200 53 7.5
NU2322 N2322 NF2322 NJ2322 NUP2322 110 240 80 17.5
NU224E N224E NF224E NJ224E NUP224E 120 215 40 6.11
NU2224 N2224 NF2224 NJ2224 NUP2224 120 215 58 9.5
NU2324 N2324 NF2324 NJ2324 NUP2324 120 260 86 22.5
NU226 N226 NF226 NJ226 NUP226 130 230 40 7
NU2226 N2226 NF2226 NJ2226 NUP2226 130 230 64 11.5
NU2326 N2326 NF2326 NJ2326 NUP2326 130 280 93 28.5
NU228 N228 NF228 NJ228 NUP228 140 250 42 9.1
NU2228 N2228 NF2228 NJ2228 NUP2228 140 250 68 15
NU2328 N2328 NF2328 NJ2328 NUP2328 140 300 102 37
NU230 N230 NF230 NJ230 NUP230 150 270 45 11
NU2230 N2230 NF2230 NJ2230 NUP2230 150 270 73 17
NU2330 N2330 NF2330 NJ2330 NUP2330 150 320 108 45
NU232 N232 NF232 NJ232 NUP232 160 290 48 14
NU2232 N2232 NF2232 NJ2232 NUP2232 160 290 80 25
NU2332 N2332 NF2332 NJ2332 NUP2332 160 340 114 55.8
NU234 N234 NF234 NJ234 NUP234 170 310 52 17.1
NU2334 N2334 NF2334 NJ2334 NUP2334 170 360 120 63
NU238 N238 NF238 NJ238 NUP238 190 340 55 23
NU203M N203M NF203M NJ203M NUP203M 17 40 12 0.08
NU204M N204M NF204M NJ204M NUP204M 20 47 14 0.133
NU205M N205M NF205M NJ205M NUP205M 25 52 15 0.155
NU206M N206M NF206M NJ206M NUP206M 30 62 16 0.24
NU207M N207M NF207M NJ207M NUP207M 35 72 17 0.344
NU208M N208M NF208M NJ208M NUP208M 40 80 18 0.439
NU209M N209M NF209M NJ209M NUP209M 45 85 19 0.523
NU210M N210M NF210M NJ210M NUP210M 50 90 20 0.578
NU211M N211M NF211M NJ211M NUP211M 55 100 21 0.691
NU212M N212M NF212M NJ212M NUP212M 60 110 22 0.95
NU213M N213M NF213M NJ213M NUP213M 65 120 23 1.16
NU214M N214M NF214M NJ214M NUP214M 70 125 24 1.34
NU215M N215M NF215M NJ215M NUP215M 75 130 25 1.4
NU216M N216M NF216M NJ216M NUP216M 80 140 26 1.76
NU217M N217M NF217M NJ217M NUP217M 85 150 28 2
NU222M N222M NF222M NJ222M NUP222M 110 200 38 5.11
NU224M N224M NF224M NJ224M NUP224M 120 215 40 6.47
NU226M N226M NF226M NJ226M NUP226M 130 230 40 7.34
NU226E N226E NF226E NJ226E NUP226E 130 230 40 7.26
NU228M N228M NF228M NJ228M NUP228M 140 250 42 9.1
NU230M N230M NF230M NJ230M NUP230M 150 270 45 11.7
NU230E N230E NF230E NJ230E NUP230E 150 270 45 11.2
NU232M N232M NF232M NJ232M NUP232M 160 290 48 14.2
NU234M N234M NF234M NJ234M NUP234M 170 310 52 18
NU236M N236M NF236M NJ236M NUP236M 180 320 52 19.6
NU238M N238M NF238M NJ238M NUP238M 190 340 55 22.6
NU244M N244M NF244M NJ244M NUP244M 220 400 65 38.9
NU248M N248M NF248M NJ248M NUP248M 240 440 72 48.2
NU252M N252M NF252M NJ252M NUP252M 260 480 80 70.3
NU260M N260M NF260M NJ260M NUP260M 300 540 85 87.2
NU2206M N2206M NF2206M NJ2206M NUP2206M 30 62 20 0.26
NU2207M N2207M NF2207M NJ2207M NUP2207M 35 72 23 0.4
NU2208M N2208M NF2208M NJ2208M NUP2208M 40 80 23 0.53
NU2209M N2209M NF2209M NJ2209M NUP2209M 45 85 23 0.54
NU2210M N2210M NF2210M NJ2210M NUP2210M 50 90 23 0.589
NU2211M N2211M NF2211M NJ2211M NUP2211M 55 100 25 0.773
NU2212M N2212M NF2212M NJ2212M NUP2212M 60 110 28 0.773
NU2218M N2218M NF2218M NJ2218M NUP2218M 90 160 40 3.68

Why choose us:
1.With more than 25 years experiences of producing and R&D bearings.
2. All of ours roller bearing and ball bearings with CE ISO TUV certificate
3. Our products have been exported to about 30 country/areas, and enjoyed a high reputation on the domestic and overseas market.
4. The OEM and ODM are available.
5. Professional after-sales team
6. Offering most reasonable price

Type Inner and outer race Material Retainer Material Row
Deep Groove  Ball Bearing Chrome Steel , Ceramic, Plastic  Steel , Brass  , Nylon  Double, Single
Self Aligning Ball Bearing Chrome Steel  Steel , Brass  Double
Cylindrical Roller Bearing Chrome Steel  Steel , Brass  Double, Single
Spherical Roller Bearing Chrome Steel  Steel , Brass  Double
Angular Contact Ball Bearing Chrome Steel  Steel , Brass  Double, Single
Taper Roller Bearing Chrome Steel  Steel , Brass  Double, Single
Thrust Bearing Chrome Steel  Steel , Brass  Double, Single
Needle Roller Bearing Chrome Steel  Steel , Brass  Double, Single
Pillow Block Bearing Chrome Steel  Steel , Brass  Double, Single

Automobile, tractor, machine tool, electrical machine, water pump, agriculture machine, textile machine, etc.

Packaging & Delivery:
Packaging Details: /plastic bag+box+cartons+pallets
2.plastic bag+single box+cartons+pallets
3.industrial packing+cartons+pallets

1. Are you a factory or a trading company?
ZheJiang XSY Bearing Co., Ltd. is a professional manufacture of deep groove ball bearings and other bearings.
2. Is OEM available?
Yes, OEM is available. We have professional designer to help your brand promotion. 
3. Is the sample available?
Yes, samples are available for you to test the quality.
4. Have the products been tested before shipping?
Yes, all of our bearings have been tested before delivery.
5. How long is your delivery time?
As mentioned above, there are different types of shipping for your order. We make sure to deliver goods once all products are produced and tested.
6. What is your terms of payment ?
You can pay by T/T, L/C, Westunion, Paypal,etc., and it can be negotiated according to different orders with different amount.
7. Can we visit your factory ?
Sure. Welcome to XSY Bearing Co., Ltd. and offer your kind guidance.Our factory is located in Yandian town, HangZhou city, ZheJiang province, China.

Contact us:
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Rolling Body: Roller Bearings
The Number of Rows: Double
Outer Dimension: Medium and Large(120-190mm)
US$ 1/Piece
1 Piece(Min.Order)


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Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

tapered roller bearing

How do Tapered Roller Bearings Enhance the Performance of Gearboxes and Transmissions?

Tapered roller bearings play a crucial role in enhancing the performance, efficiency, and reliability of gearboxes and transmissions in various applications, including automotive, industrial machinery, and power generation. These bearings are specifically designed to handle radial and axial loads, making them ideal for supporting rotating shafts and gear assemblies. Here’s how tapered roller bearings contribute to the performance of gearboxes and transmissions:

  • Load Distribution:

Gearboxes and transmissions experience a combination of radial and axial loads due to gear meshing and torque transmission. Tapered roller bearings distribute these loads evenly across the rolling elements, minimizing stress concentrations and ensuring reliable operation.

  • Axial Load Handling:

As gears transmit torque, axial forces are generated. Tapered roller bearings are capable of handling both radial and axial loads, ensuring stable and controlled motion while accommodating the forces generated by gear engagement.

  • Reduced Friction and Wear:

Tapered roller bearings are designed with precision-matched rollers and raceways, reducing friction and wear. This results in smoother gear rotation, reduced heat generation, and extended component life.

  • Optimized Axial Preload:

In certain applications, axial preload can be applied to eliminate internal clearance and enhance gear meshing performance. Tapered roller bearings allow for controlled axial preload adjustment, ensuring proper gear engagement and reducing backlash.

  • Accurate Gear Alignment:

Tapered roller bearings aid in maintaining accurate gear alignment and positioning. This is critical for achieving smooth gear transitions, preventing misalignment-related wear, and reducing noise and vibration.

  • Efficient Power Transmission:

Efficient gear operation is crucial for transmitting power from the input to the output shaft. Tapered roller bearings minimize energy losses due to friction, allowing more power to be efficiently transmitted through the gearbox or transmission.

  • High-Speed Capability:

Tapered roller bearings are suitable for high-speed applications, making them suitable for gearboxes and transmissions where rapid gear shifts or changes in rotational speed are required.

  • Reduced Noise and Vibration:

The smooth operation of tapered roller bearings contributes to reduced noise and vibration in gearboxes and transmissions. This leads to a quieter and more comfortable user experience.

  • Long Service Life:

The robust design and high-quality materials used in tapered roller bearings enhance their durability and resistance to wear. This extends the service life of gearboxes and transmissions, reducing maintenance and replacement frequency.

  • Enhanced Gearbox Performance:

Tapered roller bearings optimize the performance of gearboxes and transmissions, contributing to smoother gear shifting, improved fuel efficiency, better power transmission, and overall enhanced drivetrain performance.

Overall, tapered roller bearings are essential components that enhance the efficiency, reliability, and performance of gearboxes and transmissions in a wide range of applications.

cylindrical roller bearing

How do cylindrical roller bearings perform in high-speed or high-temperature environments?

Cylindrical roller bearings are designed to perform reliably in high-speed or high-temperature environments, although their performance may be influenced by various factors. Let’s explore how cylindrical roller bearings perform under these conditions:

  • High-Speed Environments:

In high-speed environments, cylindrical roller bearings are subjected to increased centrifugal forces and higher operating temperatures. To accommodate these conditions, several design features are employed:

  • Cage Design:

Cylindrical roller bearings intended for high-speed applications often feature optimized cage designs. The cage, or retainer, holds the cylindrical rollers in position and prevents excessive friction and heat generation. Cages made of lightweight materials such as phenolic resin or engineered plastics help reduce inertia and minimize cage wear at high speeds.

  • Roller and Raceway Geometry:

The roller and raceway profiles are designed to minimize sliding friction and ensure proper roller guidance. Special attention is given to the surface finish and precision of these components to reduce friction and minimize heat generation. Additionally, high-speed cylindrical roller bearings may have specific modifications, such as optimized roller end profiles and surface coatings, to further enhance their performance in high-speed applications.

  • Lubrication:

Proper lubrication is crucial in high-speed environments to reduce friction, dissipate heat, and prevent premature wear. High-speed cylindrical roller bearings often require lubricants with specific properties, such as low viscosity and excellent thermal stability, to ensure effective lubrication under high-speed conditions. Lubrication methods, such as oil-air lubrication or oil mist lubrication, may be employed to provide sufficient lubricant supply to the bearing at high speeds.

  • High-Temperature Environments:

When operating in high-temperature environments, cylindrical roller bearings face challenges related to elevated temperatures and potential thermal expansion. To address these challenges, the following considerations are taken into account:

  • Bearing Materials:

High-temperature cylindrical roller bearings are often made from heat-resistant materials that can withstand elevated temperatures without compromising their mechanical properties. Common materials include high-temperature steels, heat-resistant alloys, or ceramics. These materials offer improved dimensional stability and resistance to thermal expansion, ensuring the bearing’s performance and longevity.

  • Lubrication:

Proper lubrication becomes even more critical in high-temperature environments. Lubricants with high-temperature stability, such as synthetic oils or greases specifically formulated for high temperatures, are used to maintain adequate lubrication properties and prevent premature lubricant degradation. Lubrication intervals may need to be adjusted to ensure sufficient lubricant replenishment under high-temperature conditions.

  • Clearance and Preload:

In high-temperature environments, the bearing’s internal clearance or preload may be adjusted to compensate for thermal expansion. Proper clearance or preload selection helps maintain the desired operating conditions and prevents excessive bearing play or preload loss due to thermal effects.

It’s important to note that the specific performance of cylindrical roller bearings in high-speed or high-temperature environments can vary depending on factors such as the bearing size, design, operating conditions, and the presence of additional cooling or heat dissipation measures. Consulting bearing manufacturers’ recommendations and considering the application requirements are crucial for selecting the appropriate cylindrical roller bearings for high-speed or high-temperature applications.

cylindrical roller bearing

Can you describe the load-carrying capacity and load ratings of cylindrical roller bearings?

Cylindrical roller bearings have specific load-carrying capacity and load rating characteristics that determine their performance under different operating conditions. Let’s delve into the details of load-carrying capacity and load ratings for cylindrical roller bearings:

  • Radial Load-Carrying Capacity:

Cylindrical roller bearings are primarily designed to handle radial loads, which are forces applied perpendicular to the shaft. They have a high radial load-carrying capacity due to the arrangement of cylindrical rollers and their large contact area with the raceways. The load is distributed evenly along the length of the rollers, allowing cylindrical roller bearings to support heavy machinery components and withstand substantial radial forces.

  • Axial Load-Carrying Capacity:

While cylindrical roller bearings are primarily intended for radial loads, they can also accommodate moderate axial loads, which are forces applied parallel to the shaft. The axial load-carrying capacity of cylindrical roller bearings is limited compared to their radial load capacity. Therefore, for applications with predominantly axial loads, other types of bearings, such as thrust bearings, should be considered.

  • Dynamic Load Rating:

The dynamic load rating is a key parameter that indicates the maximum load a bearing can withstand under specific operating conditions without suffering premature fatigue failure. It is defined as the constant radial load (or radial equivalent load) that a group of identical bearings can theoretically endure for a rating life of one million revolutions. The dynamic load rating is specified by the bearing manufacturer and is expressed in Newtons (N) or pounds-force (lbf).

  • Static Load Rating:

The static load rating of a cylindrical roller bearing represents the maximum radial load it can sustain without exhibiting excessive permanent deformation. Unlike the dynamic load rating, which considers the fatigue life of the bearing, the static load rating focuses on the bearing’s ability to withstand a static load for an extended period without experiencing plastic deformation or other permanent damage. Similar to the dynamic load rating, the static load rating is provided by the manufacturer and is expressed in Newtons (N) or pounds-force (lbf).

  • Load Rating Calculation:

The load ratings of cylindrical roller bearings are determined through standardized calculation methods defined by international standards organizations such as ISO (International Organization for Standardization) and ABMA (American Bearing Manufacturers Association). These calculations take into account factors such as bearing dimensions, geometry, material properties, and operating conditions to establish the dynamic and static load ratings for a specific bearing model.

  • Application Considerations:

When selecting cylindrical roller bearings for a particular application, it is crucial to consider the expected load requirements, load orientation, and operating conditions. The calculated load ratings should be compared to the actual loads that the bearing will experience in the application to ensure that the chosen bearing can safely and reliably support the anticipated loads throughout its service life.

In conclusion, cylindrical roller bearings have a high radial load-carrying capacity and can accommodate moderate axial loads. The dynamic and static load ratings provided by the manufacturer serve as important parameters for assessing the bearing’s load-carrying capability and determining its suitability for specific applications.

China manufacturer CZPT Bearing Cylindrical Roller Bearing Nj2205 Nj2205em   bearing and raceChina manufacturer CZPT Bearing Cylindrical Roller Bearing Nj2205 Nj2205em   bearing and race
editor by CX 2024-04-04