SL18 Series Full Complement Cylindrical Roller Bearings
SL18 series full complement cylindrical roller bearings are guided by two flanges of one ring, with rollers and guide rings forming a single assembly. They deliver high radial load capacity with low noise and low friction between rolling elements and the ring flange.
- SL18 full complement series
- High radial load capacity
- Low noise at high speed
- Separable, easy to install and dismount
Key Benefits
Three defining features.
High Load Capacity
Compared with a deep groove ball bearing of the same dimensions, the radial load capacity is much larger.
Low Noise And High Speed
Low friction between the rolling elements and the ring flange supports high speed rotation with low noise.
Straightforward Mounting
The separable design is easy to install and disassemble, particularly with interference fits on both shaft and housing.
Where It Is Used
Where they are used.
- High radial load positions in industrial machinery
- Gearboxes and drive units
- Wind energy yaw and pitch systems
- Metallurgical equipment bearings
Who It Is For
- Machine builders selecting bearings
- Maintenance teams replacing SL18 bearings
- Plants standardising bearing supply
- Buyers qualifying a second source
Problems It Solves
- Ball bearings at their radial load limit
- Mounting difficulty with double interference fits
- Noise and friction at speed
- Sourcing full complement bearings in specific sizes
Technical Features
Construction detail.
Two Flange Guidance
Bearings are guided by two flanges of one ring, with rollers and guide rings as a single assembly.
Separable Design
The separable construction simplifies assembly and removal in tight fits.
Radial Duty
These bearings are generally used for radial loads, with axial capability only where flanges exist on both rings.
Specifications
Sizes are selected from your housing and shaft dimensions.
| Series | SL18 full complement cylindrical roller bearings |
|---|---|
| Diameter Range | 20 mm to 1200 mm across the SL family |
| Load Direction | Primarily radial |
| Axial Capability | Only with flanges on both inner and outer rings |
| Guidance | Two flanges of one bearing ring |
| Construction | Separable |
| Characteristics | High load capacity, low noise, high speed |
Materials
- Bearing steel rings and rollers
- Ground raceways
- Guide rings per series
Manufacturing Process
Selection
Housing and shaft dimensions with load and speed define the size.
Ring Manufacturing
Rings are turned, heat treated and ground.
Roller Production
Rollers are ground and sorted for even load sharing.
Assembly And Inspection
The bearing is assembled, cleaned and clearance checked.
Quality Control
- Raceway geometry inspection
- Radial clearance measurement
- Hardness verification
- Cleanliness check before packing
Customization Options
- Boundary dimensions to your application
- Clearance class for the installed fit
- Flange configuration where axial load exists
- Documentation package for qualified programmes
Use Guide
- Follow the interference fit values for both rings
- Use the separable design during mounting
- Keep lubrication clean for full complement bearings
- Order by the designation on the existing bearing
How It Compares
Against comparable bearings.
| Deep groove ball bearings | Much larger radial load capacity at the same boundary dimensions. |
|---|---|
| Caged cylindrical roller bearings | Full complement construction raises roller count and load rating in the same space. |
| Non separable designs | Separable construction makes mounting practical where both rings are interference fitted. |
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Read MoreSL18 Series Full Complement Cylindrical Roller Bearings FAQ
What makes SL18 different from a caged bearing?
It is full complement, so the raceway is filled with rollers instead of being spaced by a cage, which raises load capacity in the same envelope.
Can it carry axial load?
These bearings are generally used for radial loads. Only single row bearings with flanges on both inner and outer rings take small axial loads or large intermittent axial loads.
Why is it easy to mount?
The design is separable, which helps particularly where the inner and outer rings need interference fits with shaft and housing.
What sizes can you supply?
Across the SL family, from 20 mm up to 1200 mm. Send your dimensions or the current designation.
Are they suitable for wind energy?
Yes, SL18 series bearings are used in wind turbine yaw and pitch systems with appropriate material and sealing specification.
What do you need to quote?
Bearing designation or boundary dimensions, load and speed, clearance requirement and quantity.
Source SL18 Bearings
Send your designation or housing dimensions and we come back with an equivalent and price.