China Professional Manufacture Cylindrical Roller Bearing for Ocean Energy
Model NO.
cylindrical roller bearings
Separated
Unseparated
External Diameter
47mm
Working Temperature
-10ºC~60ºC
Precision
P0, P6, P5, P4, P2 or as Requested
Inner Ring Material
Gcr15
Speed
800rpm
Internal Diameter
20mm
Accuracy Class
P0
Transport Package
OEM
Specification
Standard Size
Trademark
oem
Origin
China
Production Capacity
10000000
Reference Price
$ 1.62 - 1.80
Description
Product Description
| Cylindrical roller bearings | NU1004 series | NU1004 1005 1006 1008 1010 1011 1012 1013 1014 1018 1021 1022 1024 1026 1028 3028 1030 1032 1034 1036 1038 1040 1044 1048 1052 1056 1060 1064 1068 1072 1076 1080 |
| NN3005 | NN3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3024 3026 3028 3030 3032 3034 3036 3038 3040 3044 3048 3052 3056 3060 3064 3068 3072 3076 3080 3092 | |
| N/RNU/NJ/NF/NUP/NU202 | 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 224 226 228 230 232 234 236 238 240 244 248 252 260 | |
| NU/N/NF/NJ/RNU/NUP 303 | 303 304 305 306 307 308309 310 311 312 313 314 315 316 317 318 319 320 321 322 324 326 328 330332 334 336 338 340 344 348 360 | |
| NJ202 | NJ202 203 204 205 206 207 208 209 210 211 212 213 214 215 | |
| NF203 | 203 204 205 206 207 208 209 210 211 212 213 214 215 | |
| NUP | 202 203 204 205 206 207 208 209 210 211 212 213 214 215 |
Cylindrical Roller Bearings:
Cylindrical rollers and raceways are linear contact bearings. Load capacity, mainly bear radial load. The friction between the rolling element and the rib of the ring is small, which is suitable for high-speed rotation. According to whether the ring has ribs or not, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing is a structure in which the inner ring and the outer ring can be separated.
Cylindrical roller bearings without ribs on the inner or outer ring, the inner and outer rings can move relative to the axial direction, so they can be used as free end bearings. Cylindrical roller bearings with double ribs on one side of the inner ring and outer ring and a single rib on the other side of the ring can withstand a certain degree of axial load in one direction. Generally, a steel stamping cage is used, or a copper alloy turning solid cage is used. However, there are also part of the use of polyamide forming cage.
Cylindrical roller bearings are separable bearings, which are very convenient to install and disassemble. Cylindrical roller bearings can withstand large radial loads and are suitable for use in high-speed operation.
Cylindrical roller bearings are separable bearings, which are very convenient to install and disassemble. Cylindrical roller bearings can withstand larger diameters
To the load and suitable for use in high-speed operation.
This type of bearing allows the angular error (inclination) between the axis of the inner ring and the axis of the outer ring to be very small, only 2' to 4'. Therefore, the machining accuracy of the shaft and the bearing seat is relatively high. Otherwise, uneven load or stress concentration will easily occur at the contact part of the raceway. However, the occurrence of stress concentrations can be reduced by modifying the contact busbars of the rollers or raceways.
Cylindrical roller bearings can be divided into different structures such as single-row, double-row and multi-row cylindrical roller bearings according to the number of rows of rolling elements installed. Different structural bearings are also reflected in the design of the position of the rib. Among the commonly used cylindrical roller bearings are the following
Several forms:
Single-row cylindrical roller bearings: Single-row cylindrical roller bearings are separable bearings, which are easy to install and disassemble. Both rings can be tightly fitted, and the contact line between the rollers and the raceway is corrected to reduce stress concentration.
Double-row cylindrical roller bearings: Double-row cylindrical roller bearings are floating bearings, and their separability makes installation and disassembly very convenient. Both ferrules can have a tight fit. Double row cylindrical roller bearings are hardly allowed to have a tilt angle.
Single row cylindrical roller bearings
N, NU type
The outer ring of the N-type bearing has no ribs, and there are ribs on both sides of the inner ring. Displacement in both axial directions between the shaft and the bearing housing can be allowed. The NU type bearing has ribs on both sides of the outer ring and no ribs on the inner ring. It is also possible to allow displacement of the shaft relative to the bearing housing in both axial directions. Therefore, this type of structure is suitable for use as a loose end bearing.
NJ, NF type
NJ type bearings have ribs on both sides of the outer ring, and ribs on one side of the inner ring. Can withstand a certain amount of unidirectional axial load.
NF type has ribs on one side of the outer ring and ribs on both sides of the inner ring. It can also bear a certain amount of unidirectional axial load. Therefore, this type of structure is suitable for use as a unidirectional axial locating bearing.
NUP, NFP type
NUP type bearings have ribs on both sides of the outer ring, a (fixed) single rib on one side of the inner ring, and a separable flat rib on the other side. Can withstand a certain amount of bidirectional axial load.
The bearing outer ring of the NFP type has a (fixed) single rib on one side, and a separable flat rib on the other side, with ribs on both sides of the inner ring. It can also withstand a certain amount of bidirectional axial load. This type of structural bearing can limit the displacement of the shaft relative to the bearing seat in both axial directions. Therefore, it is suitable for use as a fixed end bearing.
NH (NJ+HJ) type
The NH type bearing is the combination of the NJ type bearing and the HJ type inclined retaining ring. Because the inner ring of the NUP type bearing is short, and the flat retaining ring is not fixed, it is inconvenient to use, while the NH type bearing can use the width of the entire inner ring of the NJ type bearing to maintain a tighter fit with the shaft. Moreover, the NH type bearing is more convenient to install and disassemble.
NH type bearings can limit the displacement of the shaft relative to the bearing seat in both axial directions. Therefore, it is suitable as a fixed end Bearing use
Cylindrical rollers and raceways are linear contact bearings. Load capacity, mainly bear radial load. The friction between the rolling element and the rib of the ring is small, which is suitable for high-speed rotation. According to whether the ring has ribs or not, it can be divided into single row cylindrical roller bearings such as NU, NJ, NUP, N, NF, and double row cylindrical roller bearings such as NNU and NN. The bearing is a structure in which the inner ring and the outer ring can be separated.
Cylindrical roller bearings without ribs on the inner or outer ring, the inner and outer rings can move relative to the axial direction, so they can be used as free end bearings. Cylindrical roller bearings with double ribs on one side of the inner ring and outer ring and a single rib on the other side of the ring can withstand a certain degree of axial load in one direction. Generally, a steel stamping cage is used, or a copper alloy turning solid cage is used. However, there are also part of the use of polyamide forming cage.
Cylindrical roller bearings are separable bearings, which are very convenient to install and disassemble. Cylindrical roller bearings can withstand large radial loads and are suitable for use in high-speed operation.
Cylindrical roller bearings are separable bearings, which are very convenient to install and disassemble. Cylindrical roller bearings can withstand larger diameters
To the load and suitable for use in high-speed operation.
This type of bearing allows the angular error (inclination) between the axis of the inner ring and the axis of the outer ring to be very small, only 2' to 4'. Therefore, the machining accuracy of the shaft and the bearing seat is relatively high. Otherwise, uneven load or stress concentration will easily occur at the contact part of the raceway. However, the occurrence of stress concentrations can be reduced by modifying the contact busbars of the rollers or raceways.
Cylindrical roller bearings can be divided into different structures such as single-row, double-row and multi-row cylindrical roller bearings according to the number of rows of rolling elements installed. Different structural bearings are also reflected in the design of the position of the rib. Among the commonly used cylindrical roller bearings are the following
Several forms:
Single-row cylindrical roller bearings: Single-row cylindrical roller bearings are separable bearings, which are easy to install and disassemble. Both rings can be tightly fitted, and the contact line between the rollers and the raceway is corrected to reduce stress concentration.
Double-row cylindrical roller bearings: Double-row cylindrical roller bearings are floating bearings, and their separability makes installation and disassembly very convenient. Both ferrules can have a tight fit. Double row cylindrical roller bearings are hardly allowed to have a tilt angle.
Single row cylindrical roller bearings
N, NU type
The outer ring of the N-type bearing has no ribs, and there are ribs on both sides of the inner ring. Displacement in both axial directions between the shaft and the bearing housing can be allowed. The NU type bearing has ribs on both sides of the outer ring and no ribs on the inner ring. It is also possible to allow displacement of the shaft relative to the bearing housing in both axial directions. Therefore, this type of structure is suitable for use as a loose end bearing.
NJ, NF type
NJ type bearings have ribs on both sides of the outer ring, and ribs on one side of the inner ring. Can withstand a certain amount of unidirectional axial load.
NF type has ribs on one side of the outer ring and ribs on both sides of the inner ring. It can also bear a certain amount of unidirectional axial load. Therefore, this type of structure is suitable for use as a unidirectional axial locating bearing.
NUP, NFP type
NUP type bearings have ribs on both sides of the outer ring, a (fixed) single rib on one side of the inner ring, and a separable flat rib on the other side. Can withstand a certain amount of bidirectional axial load.
The bearing outer ring of the NFP type has a (fixed) single rib on one side, and a separable flat rib on the other side, with ribs on both sides of the inner ring. It can also withstand a certain amount of bidirectional axial load. This type of structural bearing can limit the displacement of the shaft relative to the bearing seat in both axial directions. Therefore, it is suitable for use as a fixed end bearing.
NH (NJ+HJ) type
The NH type bearing is the combination of the NJ type bearing and the HJ type inclined retaining ring. Because the inner ring of the NUP type bearing is short, and the flat retaining ring is not fixed, it is inconvenient to use, while the NH type bearing can use the width of the entire inner ring of the NJ type bearing to maintain a tighter fit with the shaft. Moreover, the NH type bearing is more convenient to install and disassemble.
NH type bearings can limit the displacement of the shaft relative to the bearing seat in both axial directions. Therefore, it is suitable as a fixed end Bearing use
| Model no | d(mm) | D(mm) | T(mm) | W(KG) |
| NU204 | 20 | 47 | 14 | 0.11 |
| NU205 | 25 | 52 | 15 | 0.137 |
| NU206 | 30 | 62 | 16 | 0.211 |
| NU207 | 35 | 72 | 17 | 0.3 |
| NU208 | 40 | 80 | 18 | 0.382 |
| NU209 | 45 | 85 | 19 | 0.438 |
| NU210 | 50 | 90 | 20 | 0.493 |
| NU211 | 55 | 100 | 21 | 0.648 |
| NU212 | 60 | 110 | 22 | 0.84 |
| NU213 | 65 | 120 | 23 | 1.07 |
| NU214 | 70 | 125 | 24 | 1.16 |
| NU215 | 75 | 130 | 25 | 1.25 |
| NU216 | 80 | 140 | 26 | 1.5 |
| NU217 | 85 | 150 | 27 | 2.5 |
| NU218 | 90 | 160 | 30 | 2.35 |
| NU219 | 95 | 170 | 32 | 2.8 |
| NU220 | 100 | 180 | 34 | 3.42 |
| NU221 | 105 | 190 | 36 | 4.07 |
| NU222 | 110 | 200 | 38 | 4.73 |
| NU224 | 120 | 215 | 40 | 5.65 |
| NU226 | 130 | 230 | 40 | 6.5 |
| NU228 | 140 | 250 | 42 | 8.2 |
| NU230 | 150 | 270 | 45 | 10.4 |
| NU232 | 160 | 290 | 48 | 14.4 |
| NU234 | 170 | 310 | 52 | 17.7 |
| NU236 | 180 | 320 | 52 | 18.4 |
| NU238 | 190 | 340 | 55 | 22.3 |
| NU240 | 200 | 360 | 58 | 26.6 |
| NU244 | 220 | 400 | 65 | 37.3 |
| NU248 | 240 | 440 | 72 | 50.5 |
| NU252 | 260 | 480 | 80 | 67.1 |
| Bearing No. | Boundary Dimensions (mm) | Basic Load Rating (KN) | Mass | |||||
| d | D | B | C | Co | kg | |||
| N308EM | NU308EM | NJ308EM | 40 | 90 | 23 | 76.8 | 77.8 | 0.65 |
| N309EM | NU309EM | NJ309EM | 45 | 100 | 25 | 93.0 | 98.0 | 0.95 |
| N310EM | NU310EM | NJ310EM | 50 | 110 | 27 | 105.0 | 112.0 | 1.20 |
| N311EM | NU311EM | NJ311EM | 55 | 120 | 29 | 128.0 | 138.0 | 1.61 |
| N312EM | NU312EM | NJ312EM | 60 | 130 | 31 | 142.0 | 155.0 | 1.94 |
| N313EM | NU313EM | NJ313EM | 65 | 140 | 33 | 170.0 | 188.0 | 2.42 |
| N314EM | NU314EM | NJ314EM | 70 | 150 | 35 | 195.0 | 220.0 | 2.90 |
| N315EM | NU315EM | NJ315EM | 75 | 160 | 37 | 228.0 | 260.0 | 3.59 |
| N316EM | NU316EM | NJ316EM | 80 | 170 | 39 | 245.0 | 270.0 | 3.90 |
| N317EM | NU317EM | NJ317EM | 85 | 180 | 41 | 265.0 | 280.0 | 5.20 |
| N318EM | NU318EM | NJ318EM | 90 | 190 | 43 | 290.0 | 320.0 | 6.17 |
| N319EM | NU319EM | NJ319EM | 95 | 200 | 45 | 320.0 | 350.0 | 6.92 |
| N320EM | NU320EM | NJ320EM | 100 | 215 | 47 | 355.0 | 380.0 | 8.24 |
| N322EM | NU322EM | NJ322EM | 110 | 240 | 50 | 415.0 | 470.0 | 11.20 |
| N326EM | NU326EM | NJ326EM | 130 | 280 | 58 | 615.0 | 735.0 | 19.30 |
| N328EM | NU328EM | NJ328EM | 140 | 300 | 62 | 665.0 | 795.0 | 23.70 |
| N330EM | NU330EM | NJ330EM | 150 | 320 | 65 | 715.0 | 855.0 | 26.80 |
APPLICATION
Q: Are you trading company or manufacturer ?
A: We are factory. Welcome to visit our factory.
Q: How to get price ?
A: Please send inquiry directly. Our salesman replys very fast.
Q: Do you provide Free Samples ?
A: Yes, we could offer you free samples, but do not pay the cost of freight.
Q: What's the MOQ ?
A: The MOQ depends on bearing's model number and price.Usually the total cost will be $1000 at least.
Q: What's your Payment Terms ?
A: T/T (Bank Wire)
Western Union
Money Grame
Paypal
Q: How long is your lead-time?
A: Generally it is 2 to 4 days if the goods are in stock, or it will be about 6 to 15 days depends on quantity.
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