NN3038 Double Row Cylindrical roller Bearings mill roll bearing
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 pc
- Supply Capability:
- 5000000 pc/month
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Specification of Double Row Cylindrical roller bearings:
Double row Cylindrical roller bearings belong to separable bearings, whose inner and outer rings are linearly contacted with rollers. They have small friction coefficient, bigger capacity of bearing radial load and are applicable to both bearing heavy load and impact load and high-speed rotation. Cylindrical roller bearings have the advantages of compact structure, strong stiffness, big bearing capacity, small deformation after loaded etc.
CNBM has already successfully developed split cylindrical roller bearings which can be freely installed at any time and any place, to meet the demand of driving and conveying rollway bearings at cooling area of continuous casting. CNBM also can provide special cylindrical roller bearings according to requirement of customers.
Product Application:
- Iron and steel metallurgical industry
- Medium and large motor
- Generator
- Combustion engines
- Machine tool spindle
- Speed reducer
- Loading and unloading machinery and all kinds of industrial machinery
Double row cylindrical roller bearings
- NN double row cylindrical roller bearings
This kind of bearings with inner rid, no outer rid. This assembly part can be separated from another ring, and they have larger radial load capacity than other single row cylindrical roller bearings with the same size, but the axial or housing is free axial displacement, so this kind of bearings can only bear the axial load.
- NNU, NNU…K double row cylindrical bearings
NNU,NNU...K type bearings with outer rid, no inner rid. There are tow kinds of holes, one is cylindrical hole, and another is tapered hole. Axial or housing is free axial displacement, so this kind of bearings can not bear the axial load. But these kind of bearings have larger radial load capacity than other single row roller bearings with the same size.
- NUP single row cylindrical roller bearings
NUP type bearings with double outer rid, single inner rid and loose rid, this design is possible to limit the axial displacement of the shaft or the housing in double direction within the scope of the axial clearance. in addition they mainly used to bear radial load, also can withstand diameter, the axial union load. Therefore this NUP suitable for fixed end bearings.
- NNCF double row cylindrical bearings
NNCF type bearings with three inner rids and one outer rid. They can take a direction axial positioning. There is a fixed ring in the other side of the outer rid, it can make bearing keep as one.
Double Row Cylindrical Roller Bearings Catalogue:
Desiganations | Basic load rating KN | Principal dimensions | Spead ratings rpm. | Weight | |||||||||||
Cr | Cor | d | D | B | r | Ew.Fw | Grease | Oil | kg | ||||||
NN3032K | 345 | 675 | 160 | 240 | 60 | 2.1 | 219 | 3800 | 3200 | 8.39 | |||||
NN3032KTN1 | 345 | 335 | 160 | 240 | 60 | 2.1 | 219 | 3800 | 3200 | 7.86 | |||||
NN3032K/W33 | 345 | 675 | 160 | 240 | 60 | 2.1 | 219 | 3000 | 2200 | 8.38 | |||||
NN3032K/YB2 | 345 | 675 | 160 | 240 | 60 | 2.1 | 219 | 3000 | 2200 | 8.39 | |||||
NN3032 | 345 | 675 | 160 | 240 | 60 | 2.1 | 219 | 3000 | 2200 | 8.38 | |||||
NN3034K | 435 | 860 | 170 | 260 | 67 | 2.1 | 236 | 3600 | 3000 | 12.9 | |||||
NN3034/YA8 | 435 | 860 | 170 | 260 | 67 | 2.1 | 236 | 3000 | 2200 | 13.3 | |||||
NN3036K | 555 | 1090 | 180 | 280 | 74 | 2.1 | 255 | 3400 | 2800 | 16.9 | |||||
NN3036 | 555 | 1090 | 180 | 280 | 74 | 2.1 | 255 | 2800 | 2000 | 16.9 | |||||
4382936 | 337 | 703 | 180 | 250 | 69 | 2.3 | 201 | 2800 | 2000 | 9.8 | |||||
NN3038K | 565 | 1140 | 190 | 290 | 75 | 2.1 | 265 | 3200 | 2600 | 17.9 | |||||
NN3038K/W33 | 565 | 1140 | 190 | 290 | 75 | 2.1 | 265 | 2600 | 1900 | 17.1 | |||||
NN3038 | 565 | 1140 | 190 | 290 | 75 | 2.1 | 265 | 2600 | 1900 | 18 | |||||
NNU4938B-W33 | 560 | 1250 | 190 | 260 | 69 | 3 | 212 | 2600 | 1900 | 11 | |||||
NNU6038 | 1260 | 3200 | 190 | 290 | 180 | 2.1 | 219 | 2600 | 1900 | 43.6 | |||||
NN3034K | 675 | 1340 | 200 | 310 | 82 | 2.1 | 282 | 3000 | 2400 | 22 | |||||
NN3034 | 675 | 1340 | 200 | 310 | 82 | 2.1 | 282 | 2400 | 1900 | 22.1 | |||||
NN3044K | 795 | 1610 | 220 | 340 | 90 | 3 | 310 | 2800 | 2200 | 30.1 | |||||
NN3044K/W33 | 795 | 1610 | 220 | 340 | 90 | 3 | 310 | 2200 | 1800 | 30 | |||||
NN3044 | 795 | 1610 | 220 | 340 | 90 | 3 | 310 | 2200 | 1800 | 31 | |||||
NN3048K | 810 | 1690 | 240 | 360 | 92 | 3 | 330 | 2600 | 2000 | 32.7 | |||||
NN3048 | 810 | 1690 | 240 | 360 | 92 | 3 | 330 | 2000 | 1700 | 31.6 | |||||
482752U | 605 | 1500 | 260 | 360 | 80 | 2.1 | 282 | 1600 | 1900 | 28.2 | |||||
NN3056K | 1060 | 2290 | 280 | 420 | 106 | 4 | 384 | 2200 | 1800 | 49.7 | |||||
NN3056 | 1060 | 2290 | 280 | 420 | 106 | 4 | 384 | 1700 | 1400 | 52.3 | |||||
3182160 | 1290 | 2790 | 300 | 460 | 118 | 4 | 418 | 1200 | 1500 | 76.2 | |||||
3282160 | 1290 | 2790 | 300 | 460 | 118 | 4 | 418 | 1200 | 1500 | 77.9 | |||||
31821/600 | 4050 | 9850 | 600 | 870 | 200 | 6 | 805 | 600 | 800 | 384 | |||||
32821/600K | 4050 | 9850 | 600 | 870 | 200 | 6 | 805 | 600 | 800 | 403 | |||||
31821/630 | 4350 | 10600 | 630 | 920 | 212 | 7.5 | 850 | 550 | 750 | 438 | |||||
32821/630K | 4350 | 10600 | 630 | 920 | 212 | 7.5 | 850 | 550 | 750 | 460 | |||||
NN3030K | 330 | 650 | 150 | 225 | 56 | 2.1 | 206 | 4000 | 3400 | 7.7 | |||||
NN3030/YA8 | 330 | 650 | 150 | 225 | 56 | 2.1 | 206 | 4000 | 3400 | 7.7 | |||||
NN3030 | 330 | 650 | 150 | 225 | 56 | 2.1 | 206 | 3200 | 2400 | 7.75 | |||||
NN3030/C9 | 330 | 650 | 150 | 225 | 56 | 2.1 | 206 | 3200 | 2400 | 7.75 | |||||
NN3030/C9YA8 | 330 | 650 | 150 | 225 | 56 | 2.1 | 206 | 3200 | 2400 | 7.79 | |||||
NN3030K/C91W33 | 330 | 650 | 150 | 225 | 56 | 2.1 | 206 | 3200 | 2400 | 7.7 |
- Q:Why should the main shaft be coupled with double row cylindrical roller bearings?
- Separable, easy to install and disassemble, mainly used in lathe, milling machine, machining center and other high-precision machine tool spindle. Hope to be of help to you.
- Q:How should I find the concentricity of cylindrical roller bearings after installation?
- Any form of assembly, adjustment center is a very troublesome thing, but also in the measuring installation is not very complete, the usual method is to in the base below (or below) thin copper with different thickness, until you feel better, but each installation to re adjust.
- Q:Can you make it clear? I don't understand. Thank you for being here first.
- Oh, My God!!! Do you understand the bearings in this way?! What is called "roller" means that the rolling column is cylindrical and similar to cylindrical shape, such as short cylindrical, long cylindrical, tapered roller, spherical roller, etc.." This kind of statement should be listed as the promotion answer!!! Absurd! Laughable! !!The standard answer is: Bearings in accordance with the direction of force, divided into radial bearings and thrust bearings, in simple terms, if the main force to bear the axial thrust bearings, thrust bearings; otherwise, that is, radial bearings. As for radial roller bearings, simply speaking, it is the roller bearings that mainly bear radial forces. It's so simple, there's so much nonsense!!!
- Q:How to check the thrust cylindrical roller bearings?
- Bearing dimensions (or bearing samples) have "basic rated load (KN)", this column can be directly detected, in general, according to the use of appropriate multiplied by a (1.2~1.5) safety factor. In accordance with the requirements of the design manual, the equivalent load can be calculated (considering the speed, temperature, load and stability).
- Q:Full use cylindrical roller bearings, uses and advantages?
- Full cylindrical roller bearings are designed to withstand heavy loads. At the same width, this kind of bearing, compared with the traditional belt cage bearing, has a very high carrying capacity, radial cross-section is small, it can save space, but the speed is relatively low.
- Q:KOYO cylindrical roller bearings, //KOYO cylindrical roller bearings, how to determine the accuracy level?
- Bearing accuracy grade standards for, divided into 0, 6X, 6, 5, 4, 2, six grades.The accuracy of bearings is increased in order of magnitude 0, which is adequate for general 0, but requires 5 or higher accuracy when used in other conditions or situations.In most cases, it is sufficient to apply KOYO bearings (tolerance grade PN) with general dimensional accuracy and rotational accuracy. When higher requirements are required, the bearings require higher levels of accuracy, for example, the spindle axis of the machine toolBearing. In order to achieve higher precision requirements, the standard specifies the tolerance levels of P6, P6X, P5, P4 and P2. KOYO also specified P4S, SP and UP tolerances for some special bearings in accordance with company standards.
- Q:The Russian bearing suffix No. ZST is a cylindrical roller bearing
- The suffix code is not used to distinguish the bearings, but it helps to explain the structure of the bearings and the material.
- Q:What is called a semi convex roller, a fully convex roller, a logarithmic curve roller?
- The convex roller refers to the basic cylindrical or conical roller with a continuous micro convex radian in the plane containing the roller axis, and the logarithmic curve roller is also a convex roller, which belongs to a full convex roller;Convexity roller refers to the plane containing the axis of roller in the outer surface of a continuous convex curved basic cylindrical or conical roller, roller is logarithmic curve convexity roller, roller is all convex; convexity roller refers to the plane containing the axis of roller in the outer surface of a continuous convex curved basic cylinder or conical roller,The logarithmic curve roller is also a convex roller, which belongs to a full convex roller; a modified roller refers to a roller that has a slightly modified diameter at the end of the outer surface to prevent the contact between the roller and the raceway.
- Q:What is the limit speed and rated dynamic load of NSK full M40-19g cylindrical roller bearings, HTF?
- D - tapered roller bearings with a contact angle of 28 degrees. C, CA (with solid brass cage), CD (with stamping cage), spherical roller bearing with high load. E -- high load cylindrical roller bearing. H - thrust roller bearing high load. J - tapered roller bearings of the outer raceway, the small end diameter, angle, outer ring width is consistent with the provisions of ISO. (2) material G - ring, rolling body is carburizing steel. H - ring, roll for stainless steel. (3) holder M - copper alloy solid cage. T - synthetic resin cage. W - press holder. V - no cage. (4) sealing ring, dust cover Z, ZS - one side with steel plate dust cover. ZZ, ZZS -- dust cover for two side steel plate. D, DU - one side contact rubber ring. DD, DDU -- two faced contact rubber ring. V - one with a non-contact rubber ring. VV -- two side non-contact rubber sealing ring. (5) ring shape K - taper hole, taper 1:12. K30 -- taper hole, taper 1:30. E - there is a notch or oil hole in the ring. E4 - oil tank with oil holes on the outer ring. N -- outside outer diameter band stop groove. NR -- outer ring, outer band, stop groove, stop ring.
- Q:For bearing type, no outer ring single row cylindrical roller bearings, bore 40, thickness 21, roller diameter 8, roller length 12
- Specific circumstances need to be further confirmed with your drawings.Reminder: please buy the product specifications and product quality guarantee, so as not to buy fake and inferior bearing products.Handmade, thank you for your adoption, and if you have any questions, please continue to ask.
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NN3038 Double Row Cylindrical roller Bearings mill roll bearing
- Loading Port:
- Shanghai
- Payment Terms:
- TT OR LC
- Min Order Qty:
- 50 pc
- Supply Capability:
- 5000000 pc/month
OKorder Service Pledge
OKorder Financial Service
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