Roller bearings
Cylindrical Roller Bearings
Line contact instead of point contact. A cylindrical roller bearing carries far more radial load than a ball bearing of the same envelope, and the rib configuration decides how the shaft floats.
- Series
- NU · NJ · N · NUP
- Bore
- 20 – 500 mm
- Class
- P5 / P4
Design
Line contact, controlled float.
Every batch is measured on the finished part, and the measurement file travels with the goods. Send a designation, a drawing or a photo of the failed part and an engineer will answer with a lead time and a price, usually inside 48 hours.
- Four rib configurationsNU floats in the housing, NJ locates one way, NUP both ways, N has no ribs at all.
- E and EC geometryOptimised roller and raceway profile raises capacity without changing the envelope.
- Cage by dutyMachined brass for shock and heat, steel for standard, polymer for high speed.
- Cylindrical or tapered boreTapered bore versions for adaptor sleeves and preloaded arrangements.
Technical data
NU · NJ · N · NUP| Designs | NU · NJ · N · NUP · NF |
|---|---|
| Bore range | 20 – 500 mm |
| Outer diameter | 42 – 720 mm |
| Rows | 1 |
| Accuracy | P5 / P4 |
| Cage | Machined brass, pressed steel or polymer |
| Internal geometry | Standard or E / EC optimised |
| Lubrication | Oil or grease |
Where it is used
Common applicationsElectric motors
NU on the drive end where thermal growth must float.
Gearboxes
Locating and non-locating positions in the same shaft train.
Crushers and mixers
Heavy radial load with shock, brass cage.
Rolling-mill drives
Spindle supports and gear couplings.
Send the part number.
We will send the answer.
A designation, a drawing, or a photo of the failed part is enough to start. Technical questions reach an engineer, not a mailbox.
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