Bolt Type Cylindrical Roller Bearings for Cam Drives and Conveyors
Bolt type cylindrical roller bearings, also called stud type roller bearings, run directly on a track. The thick walled outer ring is what lets them carry high radial load while keeping deformation and bending stress under control.
- Stud type track roller construction
- Thick walled outer ring for high radial load
- Flange rings carry axial load from deflection or inclined running
- Used in cam drives and conveyor systems
Key Benefits
Three properties that define this bearing.
High Radial Load Capacity
The thick walled outer ring carries high radial loads and reduces deformation and bending stresses at the same time.
Axial Load Capability
Flange rings let the bearing take the axial loads that result from deflection or inclined operation on the track.
Long Life On Imperfect Tracks
Where the outer ring may be inclined relative to the track, the design minimises edge stresses which is what extends service life.
Where It Is Used
Applications.
- Cam drives
- Conveyor systems
- Track guided machinery
- Linear motion arrangements with rolling contact
Who It Is For
- Machine builders using track rollers
- Conveyor system maintenance teams
- Plants replacing stud type rollers
- Buyers sourcing NUKR series equivalents
Problems It Solves
- Outer ring deformation under high radial load
- Axial load from inclined or deflected running
- Edge stress concentration on imperfect tracks
- Short roller life in cam and conveyor duty
Technical Features
Design detail.
Thick Walled Outer Ring
Wall thickness is what carries load and limits deformation where the roller contacts the track.
Flange Ring Configuration
Flange rings give the bearing its axial capability under inclined running.
Stud Mounting
The stud design mounts directly into the machine structure without a separate housing.
Specifications
NUKR 35 is one size in the series. Other sizes are supplied on request.
| Type | Bolt type, stud type cylindrical roller bearing |
|---|---|
| Reference Model | NUKR 35 |
| Outer Ring | Thick walled for high radial load |
| Axial Capability | Through flange rings |
| Applications | Cam drives, conveyor systems, track running |
| Mounting | Stud mounted directly to the structure |
Materials
- Bearing steel rings and rollers
- Hardened track running surface
- Sealed and greased assembly
Manufacturing Process
Model Selection
Track load, speed and mounting arrangement define the size.
Ring Manufacturing
Rings are turned, heat treated and ground.
Roller And Stud Production
Rollers and the mounting stud are produced to tolerance.
Assembly And Sealing
The bearing is assembled, greased and sealed.
Quality Control
- Outer ring hardness and geometry inspection
- Radial clearance check
- Stud thread and dimension verification
- Seal integrity check
Customization Options
- Sizes across the series
- Seal specification for the environment
- Stud length and thread to your structure
- Batch supply for conveyor system overhauls
Use Guide
- Check track condition when rollers wear unevenly
- Keep the outer ring aligned with the track where possible
- Re grease at the interval set for load and speed
- Replace rollers in groups on a conveyor section
How It Compares
Against other track roller types.
| Thin walled track rollers | A thick walled outer ring carries higher radial load with less deformation and bending stress. |
|---|---|
| Rollers without flange rings | Flange rings handle the axial load that arises from deflection or inclined operation. |
| Plain bushings on track | Rolling contact generates less friction, heat and wear than sliding contact. |
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Read MoreBolt Type Cylindrical Roller Bearings NUKR 35 FAQ
What are these bearings used for?
They run on a variety of tracks and are used in cam drives, conveyor systems and similar track guided machinery.
Can they take axial load?
Yes. Flange rings allow the bearing to withstand axial loads resulting from deflection or inclined operation.
Why is the outer ring thick walled?
It carries high radial loads and reduces deformation and bending stresses at the same time.
What if our track is not perfectly aligned?
The design minimises edge stresses where the outer ring may be inclined relative to the track, which is what extends life in those conditions.
Can you supply sizes other than NUKR 35?
Yes. Send the size or a sample and we quote the equivalent.
What do you need to quote?
Bearing designation or dimensions, track load and speed, mounting detail and quantity.
Source Track Roller Bearings
Send your bearing designation and application data and we come back with a quotation.