Roller bearings
Four-Row Cylindrical Roller Bearings
The backing-bearing class for roll necks: four rows of line-contact rollers on one inner ring give the highest radial capacity that fits inside a chock of a given width.
- Series
- Per drawing
- Bore
- 100 – 1000 mm
- Class
- P5
Design
Capacity per chock width.
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.
- Radial capacity per chock widthFour rows share the load, so the chock stays compact for the tonnage it carries.
- Axial float controlledThe design allows the controlled axial float a roll neck needs as it heats.
- Pin-type or brass cagePin-type cage for the heaviest duty, machined brass where speed is higher.
- Inner ring optionsPlain or tapered bore, with or without a rib, to suit the roll neck fit.
Technical data
Per drawing| Designs | Four rows on a common inner ring, with or without ribs |
|---|---|
| Bore range | 100 – 1000 mm |
| Outer diameter | 180 – 1400 mm |
| Rows | 4 |
| Accuracy | P5, with bore and OD measured per set |
| Cage | Pin type or machined brass |
| Axial float | Controlled, to drawing |
| Lubrication | Oil circulation standard |
Where it is used
Common applicationsRoll necks
Backing-roll and work-roll necks in strip mills.
Calender rolls
Paper and plastics calenders running at temperature.
Leveller rolls
Roller levellers where radial load is high and speed is low.
Heavy conveyors
Large-diameter pulleys and trunnion supports.
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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