SKF KRE 47 PPA cam follower and support roller
- Brand
- SKF
- Category
- Bearings
- Subcategory
- Cam follower and support roller
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Description
SKF KRE 47 PPA belongs to cam follower and support roller, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for KRE 47 PPA and any equivalents.
The SKF KRE PPA cam follower is a stud-type roller bearing that carries radial loads and transmits motion along cams, raceways, or linear guides. The stud mounts fixed while the outer ring rotates, making it a direct replacement for bushings or plain rollers in actuating linkages. Its sealed design and outer profile suit positions that demand stiffness and accurate contact.
The series code breaks down into two parts: KRE denotes a cam follower with a needle cage and integral stud, while PPA covers the sealing arrangement and outer raceway characteristics. The number between the letters, as in KRE 47 PPA, gives the outside diameter in millimeters. Sizes across the series vary to match load and envelope requirements.
Typical installations include machine tool cams, conveyor guide systems, packaging machinery, and automated assembly lines. Presses, punching machines, stamping equipment, and material feed mechanisms also use these rollers. In food and pharmaceutical plants, where hygiene and sealing matter, they appear in handling and positioning devices. Lifting and linear motion applications with limited space and high load needs are another common fit.
Selecting a cam follower starts with outside diameter, width, and sealing type. The KRE PPA range guards against contaminants, which helps in dusty or chip-prone areas. During mounting, align the stud precisely with the raceway; misalignment shortens service life. Lubrication and internal clearance also affect running quality, so check that the roller turns smoothly and quietly. For shock-loaded positions, consider a larger diameter or a wider raceway.
SKF cam followers can be exchanged with other brands that use the same dimensional designation, such as INA, NTN, or NSK, but tolerances and sealing must be verified. Interchange is not automatic: a roller with the same outside diameter may differ in width, raceway radius, or load capacity. Review compatibility tables or ask for technical guidance before substituting a component.
To replace an SKF KRE PPA series cam follower, send the complete part number through WhatsApp to MR Industrial Accessories. The team will quote it and help confirm the correct replacement. MR Industrial Accessories supplies power transmission components and bearings.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What does PPA mean in an SKF cam follower?
- PPA refers to the sealing type and outer raceway profile. In the KRE series, PPA suffixes generally indicate a double-lip seal and a raceway designed for rolling contact. For exact details, check the manufacturer's technical data or send us the full part number.
- How do I choose the right cam follower?
- Look at outside diameter, width, load capacity, and sealing for the environment. Also check alignment and lubrication. If you are unsure, send us dimensions and operating conditions; we will help you select the correct model.
- Are SKF rollers interchangeable with other brands?
- They may interchange with rollers from other brands that share the same dimensional designation, but it is not automatic. Differences in tolerances, sealing, or load capacity can affect performance. Consult us before replacing one brand with another.