GQZ NJ220 EM1 C3 Cylindrical Roller Bearing 100×180×34mm With Machined Brass Cage For Heavy Gear Units
NJ220 EM1 C3 is single row cylindrical roller bearing of NJ type structure. NJ means inner ring with single rib, outer ring without ribs; EM1 represents robust solid machined brass cage. C3 stands for increased radial internal clearance. This bearing can withstand heavy radial load and limited one-way axial load. The roller assembly can be separated from inner ring for convenient installation, inspection and maintenance. Widely used for heavy-duty gearboxes, mining conveyors, metallurgical equipment and construction machinery transmission assemblies.
Formal quotation will be sent within 24 hours upon your inquiry.
| Model | NJ220 EM1 C3 |
|---|---|
| Dimensions | d100 mm, D180 mm, B34 mm |
| Net weight | approx 4.26 kg |
| Dynamic load rating Cr | 358 kN |
| Static load rating Cor | 432 kN |
| Limiting speed | Grease 2600 rpm, Oil 3200 rpm |
| Structure | Single row cylindrical roller bearing, NJ type |
| Cage | EM1 solid machined brass cage |
| Clearance | C3 enlarged radial internal clearance |
| Material | GCr15 bearing chrome steel |
| Precision class | P0 standard; P6 optional |
Complete dimension drawings and load data available on request.
- NJ structural design, supports heavy radial load and limited unidirectional axial positioning load
- EM1 machined brass cage offers high temperature resistance, stable performance under sustained heavy loads
- C3 extra clearance provides thermal expansion allowance for continuously operating equipment
- Separable roller assembly simplifies disassembly and on-site maintenance work
- High rigidity and strong impact resistance, suitable for alternating heavy load industrial conditions
- Customizable options: OEM laser marking, special clearance grades, surface strengthening treatment
Effectively reduce failure risk for heavy load power transmission systems.
- Large heavy-duty industrial gearboxes and speed reducers
- Mining belt conveyor drive assemblies
- Metallurgical plant roller supporting shafts
- Water pump, compressor heavy load bearing positions
- Construction machinery and heavy vehicle transmission parts
- Medium speed equipment requiring high radial rigidity and one-way axial loion
25 years professional bearing manufacturer
Products exported to over 50 countries worldwide
Strict inspection on raw material hardness, surface finish, load capacity and rotational smoothness before delivery
24-hour professional technical support for installation and clearance matching guidance
Sufficient bulk stock for heavy industry and machinery distributors
We supply stable dimensional accuracy, reliable heavy-load performance and long-term cooperative support.
GCr15 raw material chemical composition and hardness inspection
Complete quenching & tempering heat stabilization treatment
Precision superfinishing grinding for bearing rings and cylindrical rollers
Brass cage precision machining and deburring processing
Full dimension tolerance, clearance detection and rotational performance testing
If you need NJ220 EM1 C3 cylindrical roller bearings:
Send inquiry to obtain below supports:
- Quick formal quotation within 24 hours
- Professional installation and clearance selection suggestions
- Custom marking and special technical requirements available
- Competitive factory direct price
Contact our sales team for full technical datasheets and formal offer.
Q1: What do EM1 and C3 stand for?
EM1 = solid machined brass cage; C3 = enlarged radial internal clearance.
Q2: Main dimensions of NJ220 EM1 C3?
100×180×34 mm NJ type cylindrical roller bearing.
Q3: Load characteristic of NJ structure?
Mainly bears radial load and allows limited one-way axial load.
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