GQZ NJ211E.M1 Single Row Cylindrical Roller Bearing 55×100×21mm Solid Machined Brass Cage For One-Way Axial Loion Shafts
NJ211E.M1 is single row separable cylindrical roller bearing with E optimized reinforced rollers and M1 solid machined brass cage. It features single ribs on outer ring, enabling one-way axial positioning to limit shaft single-side displacement. Separable inner and outer ring simplifies assembly and maintenance; line contact roller structure provides outstanding radial load capacity, widely used for heavy-load transmission shafts requiring unidirectional axial fixation.
Formal quotation will be sent within 24 hours upon your inquiry.
| Parameter | Value |
|---|---|
| Model | NJ211E.M1 |
| Dimensions | d55 mm, D100 mm, B21 mm |
| Roller track diameter Fw | 67.2 mm |
| Minimum chamfer r | 1.5 mm |
| Net weight | approx 0.73 kg |
| Dynamic load rating Cr | 112 kN |
| Static load rating Cor | 110 kN |
| Limiting speed | Grease 5300 rpm, Oil 6300 rpm |
| Structure | Single row E reinforced rollers, NJ one-way loing structure, M1 machined brass cage |
| Material | GCr15 bearing chrome steel, high-strength machined brass cage |
| Clearance | Standard C0; C2/C3/C4 enlarged clearance optional |
Complete dimension drawings and load data available on request.
- NJ single rib outer ring design realizes reliable one-way axial positioning, avoids shaft single-direction movement
- E-type optimized roller surface improves contact uniformity, stronger shock resistance and higher load capacity
- M1 solid brass cage owns high rigidity and heat resistance, not easy to deform under low-speed heavy load
- Separable inner and outer ring allows separate installation, convenient disassembly and parts replacement
- Low friction rolling design supports stable medium-high speed running with low noise
- Standard ISO metric size, fully interchangeable with same-spec cylindrical roller bearings
- Customizable options: special clearance grades, OEM laser marking, high-temperature grease, dust shields
Effectively reduce roller abrasion, restrict single-side axial drift and extend service life of transmission equipment.
- Industrial gearboxes, reducers and heavy transmission housings
- Driving motors, generator shafts and pump rotary assemblies
- Metallurgical, mining conveying and vibratory machinery
- Machine tool spindles, textile printing roller transmission parts
- Construction and agricultural machinery power output shafts
- General industrial equipment needing heavy radial load and one-way axial loion
- 25 years professional manufacturer of cylindrical roller bearings
- Products exported to over 50 countries worldwide
- Strict inspection on raw material hardness, roller finish, load capacity and running smoothness before delivery
- 24-hour professional technical support for clearance selection and installation guidance
- Sufficient bulk stock for gearbox, motor and heavy machinery distributors
- We provide stable dimensional accuracy, reliable positioning and heavy-load performance with long-term cooperation support.
- GCr15 raw material composition and hardness inspection
- Complete quenching & tempering heat stabilization treatment
- Superfinishing grinding for raceways and roller surfaces
- Precision machining and deburring for solid brass cage
- Full dimension tolerance, static & dynamic load and rotational performance testing
If you need NJ211E.M1 brass cage cylindrical roller bearings:
Send inquiry to obtain below supports:
- Quick formal quotation within 24 hours
- Professional clearance matching suggestion for different load & speed conditions
- Custom lubriion and marking solutions
- Competitive factory direct price
Contact our sales team for full technical datasheets and formal offer.




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