NU 322 ECM/C4VA301 Cylindrical Roller Bearing 110x240x50 mm For Railway Vehicle Traction Motors
The NU322ECM/C4VA301 is a single-row cylindrical bearing with NU design. The outer ring of this bearing has two rigid ribs, while the inner ring has none. As a result, NU bearings are only capable of supporting radial forces. This bearing type is commonly used as a floating bearing. Floating bearings allow axial displacement of the shaft relative to the housing in both directions. This is necessary in applications where the shaft material shrinks or expands due to temperature changes (thermal expansion). NU bearings can also be used as support bearings by combining them with HJ angle rings (available separately). Support bearings can support radial forces and also axial forces in a single direction.
EC: Optimized Internal Design Incorporating More And/Or Larger Rollers And With Modified Roller/End Flange Contact.
M: Two-Piece Machined Brass Cage, Roller Centered
C4: Bearing Internal Clearance Greater Than C3.
VA301: Bearing For Railway Vehicle Traction Motors
| Part Number |
NU322ECM/C4VA301 |
Package |
Carton Box+Pallet |
| Size: |
110x240x50 mm |
Material |
Bearing steel |
| Bore diameter (d): |
110 mm (4.331 Inch) |
Place of Origin |
Germany |
| Outside Diameter (D): |
240 mm (9.449 Inch) |
Structure |
Cylindrical Roller Bearing |
| Width, outer ring (T): |
50 mm (1.969 Inch) |
Sealing |
No seal |
| Profile |
Complete with Outer and Inner Ring |
Grease Limiting Speed (r/min) |
3000 r/min |
| Relubricatable |
Yes |
Oil Limiting Speed (r/min) |
3400 r/min |
| Radial internal clearance |
C4 |
Cage |
Brass Cage |
| Precision Grade |
P6, P5, P4 |
Certifications |
ISO9001:2015 |
| Number of Row |
1 |
Basic dynamic load rating |
530 kN |
| MOQ |
1PCS |
Basic static load rating |
540 kN |
| Weight |
11.6 KG |
Lead Time |
3~5 Days |
| Payment Term |
TT or Western Union |
Application |
Railway Vehicle Traction Motor |
| Brand Name |
As per requirement |
Snap Ring |
No |
| Bore Type |
Cylindrical |
Seperable |
Inner Ring-Both Sides |
| Bore Profile |
Straight |
Heat Stabilization |
Temperatures up to 120 °C |
| Retainer |
Yes |
Other Features |
Plain Inner Ring, 2 Rib Outer Ring, Cage on Outer Ring ID, High Capacity |
| Design |
NU |
Number of flanges, outer ring |
2 |
| Number of flanges, inner ring |
0 |
Loose flange |
None |
| Fatigue load limit (Pu) |
61 kN |
Tolerance class |
Normal |
| F |
143 mm |
D1 |
200.05 mm |
| s max |
3 mm |
r1,2 min |
3 mm |
| r3,4 min |
3 mm |
da min. |
124 mm |
| da max |
139 mm |
db min. |
146 mm |
| Da max |
225.2 mm |
ra max. |
2.5 mm |
| rb max |
2.5 mm |
kr |
0.15 mm |
| e |
0.2 mm |
Y |
0.6 mm |
Why choose us ?
1.
Quality Control To ensure the quality of our vehicles and other products, Our QC staffs do strict supplier evaluations, in-coming inspections, in-process inspections, final inspections and pre-delivery inspections. The most important is that we listen to what our customers say and are always looking for ways to improve the quality of our products through continuous improvement.
2.
OEM Ability We have built stable and long-term cooperate relationshilp with supermarkets,we canalso provide ODM, OEM and Agent services to our customers over the world.
3.
Parts Available We have spare bearings for immediate delivery to anywhere in the world. Our Bearings widely used in the fields of motor, fan, injection molding machine, mining, mechanical equipment, metallurgy, rolling, automobile, railway, iron and steel, power, textile, packaging, petroleum, paper making, etc
4.
Good Warranty We take customer satisfaction and product quality as the first priority for us. We supply reliable warranties and good after-sales services.
1.
Quality Control To ensure the quality of our vehicles and other products, Our QC staffs do strict supplier evaluations, in-coming inspections, in-process inspections, final inspections and pre-delivery inspections. The most important is that we listen to what our customers say and are always looking for ways to improve the quality of our products through continuous improvement.
2.
OEM Ability We have built stable and long-term cooperate relationshilp with supermarkets,we canalso provide ODM, OEM and Agent services to our customers over the world.
3.
Parts Available We have spare bearings for immediate delivery to anywhere in the world. Our Bearings widely used in the fields of motor, fan, injection molding machine, mining, mechanical equipment, metallurgy, rolling, automobile, railway, iron and steel, power, textile, packaging, petroleum, paper making, etc
4.
Good Warranty We take customer satisfaction and product quality as the first priority for us. We supply reliable warranties and good after-sales services.
F A Q
*Q:Can I get samples from you?
A:We are honored to offer you samples for quality check.
*Q:What parts are manufactured by you?
A: :90% of bearings are manufactured by us.
*Q:What's the leading time? (How long do you need to prepare my goods?)
A:10 days for sample orders. 30 days for mass production orders (based on different quantities)
*Q:How long do I need to wait before my goods arrive?
A:3-5 days for international express. 5-7 days for air transportation, 35-40 days for sea transportation.
*Q:Can you put my brand name (logo) on these products?
A: Yes, or container order. Sticker order qty over 100pcs.
*Q:What payment methods do you accept?
A:T/T, L/C, Western Union, etc.
*Q:What certificates do you have?
A: All of our products are with CE IAF certificate. For some models, the certificates are already available. For other models, we will need your assistance to apply the certificates. For some models, the certificates are already available. For other models, we will need your assistance to apply the certificates.
*Q:What is your product quality?
A:Our raw materials are purchased from qualified suppliers. And we have a strong quality control team to guarantee our quality. We always care what you care!!
*Q:What is your warranty?
A:Our warranty is 24 months after delivery. We always pay high attention to after sale service!! For those out of warranty, we have adequate parts.
Electrical and easy wear parts are not included in warranty range.
*Q:How are parts availability?
A:We keep stock of spare parts and make sure all parts available whenever you need.
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