
NTN KR19FXLL/3AS cam follower
- Brand
- NTN
- Category
- Bearings
- Subcategory
- Cam follower and support roller
- Series
- KR
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Description
NTN KR19FXLL/3AS belongs to cam follower, 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 KR19FXLL/3AS and any equivalents.
A cam follower from the NTN KR series combines a roller bearing with a stud that is built into the unit, so it bolts straight to the frame instead of needing a separate shaft and housing. That stud mounting keeps the assembly rigid and compact, which suits cam drives, guide tracks and similar motion applications. MR Industrial Accessories supplies this series to maintenance and purchasing teams in the United States and Latin America.
The part number tells you most of what you need. KR signals a stud-type cam follower. The digits after it give the roller outside diameter in millimeters, so KR16 means a 16 mm outside diameter. Suffixes carry the rest: FX points to a special sealing arrangement, LL means double sealing, and AS marks a change in the stud or cage design. Reading the code this way lets you match a replacement to the original without guessing.
You will find these rollers in machine tools, packaging lines, conveyors, presses, cranes and material handling equipment, as well as on automotive assembly lines and in cam mechanisms. Their stud mounting and small envelope make them a practical choice where space is tight and the roller has to take radial load while guiding motion.
Selection comes down to a few practical points: the radial load the roller will see, the speed it turns at, the environment it works in and how it will be lubricated. Where dust or moisture is present, the FXLL sealing option is the one to look at. Correct alignment at mounting and a suitable grease or oil charge matter just as much as the part number itself.
On interchangeability, cam followers that follow the same nomenclature and share the same dimensions can serve as replacements across brands. Check tolerances and seal type before committing, since those details decide whether the swap works. If anything is unclear, send the application details and the team can point you to a suitable equivalent.
Quotes are handled by part number. Send the complete designation by WhatsApp or email and you will get a prompt reply with the information you need to order or specify the part.
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
- How do I read a designation like KR16FXLL/3AS?
- KR means a cam follower with a stud. The 16 is the roller outside diameter in millimeters. FX and LL describe the sealing arrangement, with LL indicating double sealing, and 3AS identifies a stud design variant.
- What kinds of equipment use KR series cam followers?
- They appear in machine tools, conveyors, packaging equipment, presses, cranes and cam mechanisms, including automotive assembly lines. The common thread is a need to carry radial load in a compact space.
- What should I check before ordering a replacement?
- Confirm the radial load, speed, environment and lubrication method, and decide whether the sealing option suits the conditions. Compare tolerances and seal type when considering an equivalent, and send your part number if you want help.

