NJ2311-E-XL-M1 Single Row NJ Type Cylindrical Roller Bearing Machined Brass M1 Cage 55x120x43mm Heavy Duty Reducer Equipment
Price:
negotiation
MOQ:
100.PCS
Delivery Time:
5 working days
Brand:
GQZ
Product Description
1. Product Overview
The NJ2311-E-XL-M1 single row cylindrical roller bearing adopts NJ semi-loing structure, optimized E roller profile, XL enhanced load design and M1 solid machined brass cage. It can bear ultra-heavy radial load and limited unidirectional axial thrust load, separable inner and outer ring structure simplifies disassembly and maintenance, widely matched to heavy-duty gearboxes, mining equipment and construction machinery under continuous heavy impact working conditions.
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2. Technical Specifiions
| Parameter | Value |
|---|---|
| Model | NJ2311-E-XL-M1 |
| Inner Diameter (d) | 55mm |
| Outer Diameter (D) | 120mm |
| Overall Width (B) | 43mm |
| Roller Assembly Diameter Fw | 70.5mm |
| Min Fillet Radius r/r1 | 2mm |
| Structure | NJ type single row cylindrical roller bearing, double ribs outer ring, single rib inner ring |
| Profile Type | E optimized crowned roller for stress reduction |
| Design Standard | XL enhanced high load series |
| Cage Type | M1 solid machined brass cage (roller guided) |
| Material | GCr15 high carbon chromium bearing steel |
| Basic Dynamic Load Cr | 235000N |
| Basic Static Load C0r | 230000N |
| Fatigue Load Limit Cur | 44000N |
| Reference Speed (Grease) | 4500rpm |
| Limiting Speed (Oil) | 10400rpm |
| Approximate Net Weight | 2.24kg |
| Operating Temperature Range | -30℃ ~ +130℃ |
| Permissible Single Direction Axial Displacement | Max 3.5mm |
| Gear Type (if any) | None |
???? Full technical data and drawings available upon request
3. Key Advantages
- XL enhanced internal structural design greatly upgrades radial load capacity, adapts to long-term heavy continuous load operation
- E crowned roller profile eliminates edge stress concentration, reduces vibration and prolongs service life under impact load
- M1 integral machined brass cage features high rigidity, anti-deformation and high-temperature resistance, stable at high rotating speed
- NJ semi-loing structure bears large radial load and unidirectional axial force, restricts single-side axial shaft floating
- Separable inner/outer ring split design allows independent installation, inspection and replacement without disassembling whole shaft
- Standard metric ISO interchangeable size, compatible with general heavy machinery housing and shaft assemblies
- Optional variants: polymer E cage version, C3/C4 enlarged clearance, open standard clearance type
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4. Appliions
This heavy-load brass cage cylindrical roller bearing is widely used in:
- Heavy industrial gear reducers, speed change boxes and main drive transmission assemblies
- Mining conveyors, crusher rotary shafts and large mine transportation equipment
- Construction mixers, road rollers and heavy engineering machinery rotary supporting parts
- Metallurgical rolling auxiliary equipment, large agricultural heavy-duty transmission shafts
???? Ideal for customers seeking high rigidity heavy-duty semi-loing cylindrical roller bearing solutions
5. Why Choose Us
- 25+ years experience in heavy load machined brass cage cylindrical roller bearing manufacturing
- Exported to many countries worldwide
- Rich OEM bulk order experience for reducer and mining machinery bearing projects
- Strict full-process load fatigue, cage rigidity and high-speed rotation aging inspection before shipment
- Fast professional engineer technical response within 24 hours
- Stable mass supply for long-term heavy industry and mining equipment factory cooperation
???? We focus on stable high-rigidity heavy-load anti-fatigue running performance and reliable long-term partnership
6. Quality Assurance
- GCr15 bearing steel raw material composition and hardness inspection
- Precision superfinishing grinding for raceway and crowned cylindrical rollers
- Standard quenching & tempering heat treatment control
- Brass cage rigidity test, radial heavy load fatigue test and full dimensional recheck
- Individual anti-rust oil treatment and independent plastic packaging for each bearing
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7. CTA
Get a Quote Now
Looking for a reliable M1 machined brass cage XL high load NJ type cylindrical roller bearing supplier?
???? Send your inquiry to get:
- Fast quotation within 24 hours
- Professional engineer technical support
- Custom clearance grade, polymer cage and high-temperature lubriion solution suggestions
- Competitive factory wholesale price
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8. FAQ
Q1: Can you provide custom cylindrical roller bearings?
Yes, we support OEM custom production based on clearance grade, cage material and special load requirements.
Q2: What is your delivery time?
Standard stock NJ2311-E-XL-M1: 7–12 working days
Custom C4 clearance / special high temp products: 12–18 working days
Custom C4 clearance / special high temp products: 12–18 working days
Q3: Do you support bulk orders?
Yes, we provide stable continuous mass supply for long-term heavy reducer and mining machinery factory cooperation.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Wuxi Guangqiang Bearing Trade Co.,Ltd
Location
No. 650 North Xingyuan Road, Beitang District, Wuxi, China.
Contact Person
Mike Zhang