NJ221M Cylindrical Roller Bearing
Cylindrical roller bearings in many designs, dimension series and sizes. The majority are single row bearings with a cage. Single and double row full complement bearings (without cage) complete the standard assortment for general engineering. Bearings with a cage can accommodate heavy radial loads and operate at high speeds. Full complement bearings are suitable for very heavy radial loads at moderate speeds.
Product picture&2D Drawing of NJ221M Cylindrical Roller Bearing
| Specifications |
| Design Units Metric |
Weights 3.47Kgs |
Cage Material Brass |
Type NJ |
Tapered Bore N |
| Dimensions |
| d Bore 105.00mm |
| D Outer Diameter 190.00mm |
| B Inner Ring Width 36.00mm |
| C Outer Ring Width 36.00mm |
| Abutment and Fillet Dimentions |
| R Inner Ring Radius 2.1mm |
| r Outer Ring Radius 2.1mm |
da Inner Ring Backing Diameter 116.00mm |
| Db Outer Ring Backing Diameter 172.00mm |
| Basic Load Ratings |
| Cr Dynamic Load Rating 201kN |
| C0r Static Load Rating 241kN |
| Factors |
| Grease Reference Speed 3,400rpm |
| Oil Reference Speed 4,000rpm |
Cylindrical Roller Bearing can be used in many fields
- Motors, hydraulic cylinders, generators, wood-working machines
- Gas turbines, vibrating screens, lifting and transport machines
- Internal combustion engines, reducers, arge agricultural machines
- Machine tool spindle, coal grinding machines, extrusion machines
- Rolling mills, railway vehicles
SUN Bearing can provide professional consults to customer for your application fields and offer you specific application solutions with high efficiency and precise cost control.
Quality control of SUN Bearing for all bearing series
- Assembly
- Windage test
- Cleaning
- Rotary test
- Greasing and gland
- Noise inspection
- Apprearance inspection
- Rust prevention
- Product packing
Processing
Each bearing is 100% inspection by qualified inspectors and instruments in all above processes.
A. Package instuctions of SUN Bearing for all bearing series.
- Commercial packaging: 1pc/plastic bag + color box + carton + pallet
- Industrial packaging: a). plastic tube + carton + pallet; b). plastic bag + kraft paper + carton + pallet
- Customized packaging solutions according to customers' requirements
- High quality rubber cover: waterproof, wear-resisting, high temperature resistance,corrosion resistance
B. Shipping
- By courier like EMS, DHL, UPS, TNT, Fedex
- By air to air port
- By sea to sea port
- Select the best shipment mode after customers' confirmation through negotiations between us
- Generally it is 3-15days if the goods are in stock. Or it is 10-45days if the goods are not in stock, it is subject to customers' quantity.
- SUN Bearing can provider OEM or ODM service according to samples or drawings offered by customers.
- Lead time is usually 5-15days.
- Confirm the specifications of the customized bearing through researching application lines, environment&conditions,matched equipments specifications,etc.
- Assure the customized bearing complied with clients' requiements to give our customer the most stable use effect of the beairng.
SUN Bearing's sample instructions for all bearing series.
- The bearing value below 80USD is for free.
- Customers only need to pay the freight in advance. We will send samples within 7days by (DHL, FedEx, TNT, EMS).
- As we have so many customers asking for samples all over the world,we can’t pay for the express charges for every customer.
- Pay back the express charges to our customers when customers engage a trial order.
Click on navigation modules of the home and the company frofile on the top ,you can get specific details of SUN Bearing to know more about us.
Feel free to contact me when you need any information about bearings,contact details as following:
Michael Li
Sales manager
Web: http://www.sunbearing.net
Tel/Fax:+86-411-88700549
Mob.:+8615942892735
Facebook:facebook.com/michaelli2735
