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MALAYA · Cylindrical Roller Bearings
NJ321ECM
Cylindrical Roller Bearings
- ⌀d105mm
- ⌀D225mm
- B49mm
MALAYA NJ321ECM is a cylindrical roller bearing manufactured to ISO dimensional and tolerance standards for industrial plant and OEM use. It has a 105 mm bore, a 225 mm outside diameter and a width of 49 mm. Supplied with CN internal clearance and brass cage. Rated to 3,800 rpm under oil lubrication. Dimensionally interchangeable with SKF NJ 321 ECJ and Timken NJ321EMAC3.
Quoted the same working day. Orders placed before 4 PM dispatch same day.
Interchange
Same ISO envelope. These designations share the dimensions above and fit the same housing.
- SKFNJ 321 ECJ
- TimkenNJ321EMAC3
Specification
Dimensions
| Bore Ø | 105mm |
|---|---|
| Outside Ø | 225mm |
| Width | 49mm |
| Mass | 10.3kg |
Design
| Type | Single Row Roller |
|---|---|
| Rolling element | Roller |
| Rows | Single Row |
| Sealing | Open |
| Cage | Brass |
| Clearance | CN |
| Precision | Grade 0 |
| Size standard | Metric System |
Performance
| Dynamic load C | 500kN |
|---|---|
| Static load C₀ | 500kN |
| Fatigue limit Pu | 57kN |
| Limiting speed (oil) | 3,800rpm |
| Limiting speed (grease) | 3,200rpm |
| Min temperature | -40°C |
| Max temperature | 120°C |
Nearest sizes
Same family, closest bore — the usual substitutions.