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Proveedor Auditado China Supplier NU308EM Cylindrical Roller Bearing for Textile Machinery
Application
Continuous Casting Machines Mechanical Fans and Blowers
Gearbox and Pumps Wind Turbines
Material Handling Marine Propulsion and Offshore Drilling
Mining and Construction Equipment Pulp and Paper Processing Equipment
The roller of the cylindrical roller bearing is in line contact with the raceway, so the bearing can bear heavier
radial load. Applications are found in situations characterizes by heavy load and shock load, and also by
high-speed rotation. These bearings are separable bearings, and convenient to be mounted and dismounted.
They are designed as types of single, double and multiple rows among which the single row cylindrical roller
bearings are most applicable. Normally these bearings can accommodate radial load only, none but single
row bearings with ribs both on inner and outer rings can carry lighter constant axial load.
Chrome Steel Single Row Cylindrical Roller Bearing
| Product Name | Cylindrical Roller Bearing |
| Precision Rating | P6, P0, P5, P4, P2 |
| Material | Bearing Steel (GCr15) |
| Clearance | C0 C1 C2 C3 C4 C5 |
| Vibration & Noisy | Z1,Z2,Z3 V1,V2,V3 |
| Cage | Brass, Nylon, Steel |
| Seal | ZZ, 2RS, RZ, NR, N |
| Features | High Precision, High Speed, Long Life, High Reliability, Low Noise , Reduce Friction |
| Certification | ISO 9001:2008 |
| Packing | 1.Neutral Packing Bearing 2.Industrial Packing 3.Commercial Packing Bearing 4.Customize |
| Delivery Time | 30 - 45 Days After The Order is Confirmed |
| Shippment | 1.By Sea 2.By Air 3.By Express |
| Website | http://hlimachinery.en.made-in-china.com |
Cylindrical Roller Bearing Specification
| 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 |
| N324EM | NU324EM | NJ324EM | 120 | 260 | 55 | 440.0 | 552.0 | 14.10 |
| 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 |
| N332EM | NU332EM | NJ332EM | 160 | 340 | 68 | 860.0 | 1050.0 | 33.00 |
| N334EM | NU334EM | NJ334EM | 170 | 360 | 72 | 795.0 | 1010.0 | 37.50 |
| N336EM | NU336EM | NJ336EM | 180 | 380 | 75 | 905.0 | 1150.0 | 43.50 |
HENGLI Machinery Company is a well-established Chinese bearing supplier. We design, manufacture and
wholesale bearings. Our specialized manufacturer of Spherical Roller Bearing & Cylindrical Roller
Bearing, LUAN Rolling Bearing Co., Ltd was established in 1970 and is accredited by the Chinese Ministry
of Machine Building.
We invested in two additional specialized bearing factories, which allow us to provide our clients with top of
the line products such as Needle Roller Bearings, Cam Follower Bearings, Thrust Bearings, Spherical
Plain Bearings,Rod Ends Bearings, Ball Joint Bearings, Tapered Roller Bearings, Wheel Hub Bearings
and Non-Standard Bearings.
A - Manufacturer - Do it only with the Best;
-Your Choice make different.
Q2 - Our Products
A - Spherical Roller Bearing, Cylindrical Roller Bearing, Needle Roller Bearing, Cam Followers,
Thrust Bearing
- Spherical Plain Bearing, Rod End, Ball Joint, Wheel Hub, Tapered Roller Bearing
Q3 - Process of our production
A - Heat Treatment - Grinding - Parts Inspection - Assembly - Final Inspection - Packing
Q4 - How to customize bearing(non-standard) from your company?
A -We offer OEM,Customized(Non-standard) service and you need to provide drawing and detailed
Technical Data.
Q5 - What should I care before installation?
A - Normally, the preservative with which new bearings are coated before leaving the factory does
not need to be removed; it is only necessary to wipe off the outside cylindrical surface and bore,
if the grease is not compatible with the preservative, it is necessary to wash and carefully dry the
bearing.
-Bearings should be installed in a dry, dust-free room away from metal working or other machines
producing swarf and dust.
Q6 - How to stock and maintenance my bearings right?
A - Do not store bearings directly on concrete floors, where water can condense and collect on the
bearing;
-Store the bearings on a pallet or shelf, in an area where the bearings will not be subjected to high
humidity or sudden and severe temperature changes that may result in condensation forming;
-Always put oiled paper or, if not available, plastic sheets between rollers and cup races of tapered
roller bearings.
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Proveedor Auditado 
