SKF Bearing

 NNU4936BK/SPW33 SKF super-precision cylindrical roller bearings

Cylindrical roller bearings

SKF super-precision cylindrical roller bearings are characterized by:

  • High speed capability
  • High radial load carrying capacity
  • High rigidity
  • Low friction
  • Low cross-sectional height

These bearings are therefore particularly well suited for machine tool spindles where the bearing arrangement must accommodate heavy radial loads and high speeds, while providing a high degree of stiffness.

SKF super-precision single row cylindrical roller bearings have a higher speed capability than double row bearings while double row bearings are more suitable for heavier loads.

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SKF super-precision cylindrical roller bearings

Designation Principal dimensions Basic load ratings Attainable speeds
dynamic static Grease lubrication Oil-air lubrication
d[mm] D[mm] B[mm] C[kN] C0[kN] [r/min] [r/min]
NNU 4920 BK/SPW33   100   140   40   128   255   5 600   6 300
  NNU 4921 BK/SPW33   105   145   40   130   260   5 300   6 000
  NNU 4922 BK/SPW33   110   150   40   132   270   5 300   6 000
  NNU 4924 BK/SPW33   120   165   45   176   340   4 800   5 300
  NNU 4926 BK/SPW33   130   180   50   187   390   4 300   4 800
  NNU 4928 BK/SPW33   140   190   50   190   400   4 000   4 500
  NNU 4932 BK/SPW33   160   220   60   330   680   3 600   4 000
  NNU 4934 BK/SPW33   170   230   60   336   695   3 400   3 800
  NNU 4936 BK/SPW33   180   250   69   402   850   3 000   3 400
  NNU 4938 BK/SPW33   190   260   69   402   880   2 800   3 200
  NNU 4940 BK/SPW33   200   280   80   484   1 040   2 600   3 000
  NNU 4944 BK/SPW33   220   300   80   512   1 140   2 400   2 800
  NNU 4948 BK/SPW33   240   320   80   528   1 220   2 200   2 600
  NNU 4952 BK/SPW33   260   360   100   748   1 700   2 000   2 400
  NNU 4956 BK/SPW33   280   380   100   765   1 800   1 900   2 200
  NNU 4960 BK/SPW33   300   420   118   1 020   2 360   1 800   2 000
  NNU 4964 BK/SPW33   320   440   118   1 060   2 500   1 700   1 900
  NNU 4924 BK/SPW33   120   165   45   176   340   4 800   5 300
  NNU 4926 BK/SPW33   130   180   50   187   390   4 300   4 800
  NNU 4928 BK/SPW33   140   190   50   190   400   4 000   4 500
  NNU 4930 BK/SPW33   150   210   60   330   655   3 800   4 300
  NNU 4932 BK/SPW33   160   220   60   330   680   3 600   4 000
  NNU 4934 BK/SPW33   170   230   60   336   695   3 400   3 800
  NNU 4936 BK/SPW33   180   250   69   402   850   3 000   3 400
  NNU 4938 BK/SPW33   190   260   69   402   880   2 800   3 200
  NNU 4940 BK/SPW33   200   280   80   484   1 040   2 600   3 000
  NNU 4944 BK/SPW33   220   300   80   512   1 140   2 400   2 800
  NNU 4948 BK/SPW33   240   320   80   528   1 220   2 200   2 600
  NNU 4952 BK/SPW33   260   360   100   748   1 700   2 000   2 400
  NNU 4956 BK/SPW33   280   380   100   765   1 800   1 900   2 200
  NNU 4960 BK/SPW33   300   420   118   1 020   2 360   1 800   2 000
  NNU 4964 BK/SPW33   320   440   118   1 060   2 500   1 700   1 900

You can get competitive price from our company. More information, please contact us  E-mail：sale@adyrbearing.com

We can provide bearing and non-standard bearings, linear bearings, automotive bearings, large bearings, railway bearings, spherical plain bearings, high temperature, super-precision bearings, as well as some rare types customized to your need.ADYR Bearing Co.,Limited. has been engaged in bearing industry for many years, we provide a wide selections of brands including FAG bearing, FAG bearing, FAG bearing, NTN bearings, SKF bearings, deep groove ball bearings, cylindrical roller bearings, tapered roller bearings, self-aligning ball bearings,thrust ball bearings, rolling mill bearings, spherical roller thrust bearings, spherical bearings, adapter sleeves, withdrawal sleeves, lock nut, lock washer,locking device, etc.

Our bearings are exported to countries and regions in Europe (the UK, France, Italy, Germany), North America (USA, Canda),

Middle East and Southeast Asia.Our goal is to exceed our customers’ expectation in providing quality products and continue to improve the services we
provide on a timely manner.Please view the products at our website that we can supply. You can also contact our sales representative to request a
price quotation on the products that you are looking for that may not been shown on our website.

Packaging & Shipping
1.industrial packing+industrial cartons+pallets
2.single brand box+brand cartons+pallets
3.follow customer’s requests
A.Plastic Tubes or Single Boxes ( Usually 10pcs in one plastic tube for steel bearings);
B.Cartons ( No more than 30kg for one carton );
C. Pallet ( Usually more than 400kg totally will use pallet )
D. Delivery time :7-35 days ( by sea or by air )
Generally,We will choose the most suitable packing method for products. If you have any special requirements for packing, pleasecontact us in advance.
 After Sales Service
In order to meet the increasing market demand, and better serve the customers, we has built a professional team composed of sales engineers to provide perfect pre-sales and after-sales services.We provide consulting services for maintenance, procurement and design staff concerning the basic knowledge, selection, installation and removal, lubrication, maintenance and equipment management of imported bearings.All these services are mean to reduce the installation errors, form good work and safety habits and improve the efficiency of maintenance personnel, thus achieving the best use effect and the maximum bearing life.We also help users analyze the failure of the bearing, confirm the causes, provide solutions for this issue and give suggestions on precautionary measures.
FAQ
Q:What’s your after-sales service and warranty?
A: We promise to bear the following responsibilities when defective products were found:
1.12 months warranty from the first day of receiving goods;
2. Replacements would be sent with goods of your next order;
3. Refund for defective products if customers require.
Q:Do you accept ODM&OEM orders?
A: Yes, we provide ODM&OEM services to worldwide customers, we also customize OEM box and packing as your requirements.
Q:What’s the MOQ?
A: MOQ is 10pcs for standardized products; for customized products, MOQ should be negotiated in advance. There is no MOQ for sample orders.
Q:How long is the lead time?
A: The lead time for sample orders is 3-5 days, for bulk orders is 5-15 days.
Q:Do you offer free samples? 
A: Yes we offer free samples to distributors and wholesalers, however customers should bear freight. We DO NOT offer free samples to end users.
Q:How to place order?
A: 1. Email us the model, brand and quantity,shipping way of bearings and we will quote our best price for you;
2. Proforma Invoice made and sent to you as the price agreed by both parts;
3. Deposit Payment after confirming the PI and we arrange production;
4. Balance paid before shipment or after copy of Bill of Loading.Contact with us now!

 

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