PL
Support roller KR 47 PPA SKF 20 × 47 × 66 mm
Specifications
KR 47 PPA SKF
- Designation
- KR 47 PPA
- Manufacturer
- SKF
- Inner diameter d
- 20 mm
- Outer diameter D
- 47 mm
- Width B
- 66 mm
- Dynamic load rating C
- 14.7 kN
- Static load rating C0
- 24.5 kN
- Limiting speed
- 3 000 rpm
- Weight
- 0.381 kg
- Chamfer radius r
- 1 mm
- Thread length lg
- 21 mm
- G thread
- M20x1.5
- Presence of a trunnion
- With journal
- Permissible axial displacement s
- 0.436 mm
- Outer ring width C
- 24 mm
Product summary
KR 47 PPA: track roller, brand SKF. Bore diameter d 20 mm, outside diameter D 47 mm, width B 66 mm. Dynamic load rating C 14.7 kN, static load rating C0 24.5 kN, limiting speed 3000 rpm, weight 0.381 kg.
The thick-walled outer ring runs directly on a track or cam, no housing is needed. It carries radial load, often with a significant shock component.
Where it is used
Cam mechanisms and copying templates, linear guides, roller tables and conveyors, packaging and stamping machines, telescopic booms. Mounted on a stud or on an axle in a yoke, depending on the design.
When not to use
It does not replace an ordinary radial bearing fitted between shaft and housing: its load rating is calculated for the ring rolling on a track, not for uniform support around the whole circumference. The reverse swap is wrong too: the thin outer ring of an ordinary bearing run on a rail will be dented.
Technical data is for information only. Drawings may not show all design features.
About the technical data
* - Technical specifications and other information are provided for reference only. We provide this data and believe the information to be reliable, however, no guarantee of accuracy or completeness of such information can be provided.
- Drawings and images may not reflect all design features of the product.