IKO CF20-1VBUUR Cam Follower, 20 mm stud, 47 mm OD, Sealed, Crowned
Available
This page covers 13 IKO CF Series cam followers (CF6VBUUR to CF30-2VBUUR, 6 to 30 mm stud): a hexagon hole in the stud head, full complement needle rollers, sealed type construction and a crowned outer ring. Choose the size in the options above; each variant has its own dimensions and ratings in the Model Details.
The CF series is the basic stud type in the IKO cam follower range, with stud diameters from 3 mm to 30 mm. A cam follower is a bearing with a stud, with needle rollers inside a thick-walled outer ring. The outer ring rotates and runs directly on the mating track (cam guide surface), so cam followers suit cam mechanisms and linear motions and are used in machine tools, industrial robots, electronic devices and office automation (OA) equipment.
In the part number, the number after CF is the stud diameter in mm; B is the hexagon hole in the stud head, V is the full complement type (no V is with cage), UU is the sealed type (no UU is the shield type), and R is the crowned outer ring (no R is cylindrical). Every model on this page is sealed type, full complement, crowned outer ring.
Where this product is used
- Cam mechanisms, with the outer ring running directly on the cam track
- Linear motion and follower applications
- Machine tools and industrial robots
- Electronic devices and office automation (OA) equipment
Features
- Stud type with a hexagon hole in the stud head: hold the hexagon hole with a hex key and tighten the nut with a spanner
- Full complement needle rollers: suited to heavy loads at low speed rotations
- Sealed type: seals fitted in the narrow clearances keep foreign substances out
- Crowned outer ring (R): moderates the edge load caused by mounting errors
- Prepacked with grease
- Supplied with a nut and, on the larger studs, a grease nipple (see the Model Details for each size)
- Basic dynamic load rating C 6,980 to 67,700 N and static load rating C0 8,500 to 144,000 N (each size in the Model Details)
- Track capacity 1,040 to 10,800 N on a 40 HRC mating surface
Key specifications
| Specification | Detail |
|---|---|
| Type | Standard type cam follower (stud type) |
| Models | CF6VBUUR to CF30-2VBUUR (13 sizes) |
| Stud diameter d1 | 6 to 30 mm |
| Thread G | M6 x 1 to M30 x 1.5 |
| Outer ring diameter D | 16 to 90 mm |
| Outer ring width C | 11 to 35 mm |
| Rolling elements | Full complement needle rollers |
| Seal | Sealed type (UU in the part number) |
| Outer ring | Crowned outer ring (R in the part number) |
| Stud head | Hexagon hole in the stud head (B in the part number) |
| Basic dynamic load rating C | 6,980 to 67,700 N |
| Basic static load rating C0 | 8,500 to 144,000 N |
| Maximum allowable static load | 1,950 to 85,900 N |
| Track capacity (mating surface 40 HRC) | 1,040 to 10,800 N |
| Lubrication | Prepacked with grease |
| Recommended mounting hole tolerance for the stud | H7 |
| Brand | IKO (Nippon Thompson Co., Ltd., Japan) |
Available sizes
Show all 13 sizes with dimensions, load ratings and mass
| Model | Stud d1 (mm) | Thread G | OD D (mm) | Width C (mm) | Length B1 (mm) | C (N) | C0 (N) | Mass (g) |
|---|---|---|---|---|---|---|---|---|
| CF6VBUUR | 6 | M6 x 1 | 16 | 11 | 28.2 max | 6,980 | 8,500 | 19 |
| CF10VBUUR | 10 | M10 x 1.25 | 22 | 12 | 36.2 max | 9,570 | 14,500 | 46 |
| CF10-1VBUUR | 10 | M10 x 1.25 | 26 | 12 | 36.2 max | 9,570 | 14,500 | 61 |
| CF12VBUUR | 12 | M12 x 1.5 | 30 | 14 | 40.2 max | 13,500 | 19,700 | 97 |
| CF12-1VBUUR | 12 | M12 x 1.5 | 32 | 14 | 40.2 max | 13,500 | 19,700 | 107 |
| CF16VBUUR | 16 | M16 x 1.5 | 35 | 18 | 52.1 max | 20,700 | 37,600 | 173 |
| CF18VBUUR | 18 | M18 x 1.5 | 40 | 20 | 58.1 max | 25,300 | 51,300 | 255 |
| CF20-1VBUUR | 20 | M20 x 1.5 | 47 | 24 | 66.1 max | 33,200 | 64,500 | 390 |
| CF20VBUUR | 20 | M20 x 1.5 | 52 | 24 | 66.1 max | 33,200 | 64,500 | 465 |
| CF24-1VBUUR | 24 | M24 x 1.5 | 72 | 29 | 80.1 max | 46,600 | 92,000 | 1,140 |
| CF30VBUUR | 30 | M30 x 1.5 | 80 | 35 | 100 max | 67,700 | 144,000 | 1,870 |
| CF30-1VBUUR | 30 | M30 x 1.5 | 85 | 35 | 100 max | 67,700 | 144,000 | 2,030 |
| CF30-2VBUUR | 30 | M30 x 1.5 | 90 | 35 | 100 max | 67,700 | 144,000 | 2,220 |
Length B1 is the overall length with the stud; where marked max it is a maximum. C is the basic dynamic load rating and C0 the basic static load rating. Mass is for the product body only: the nut, grease nipple and other accessories are not included.
Selecting the right option
Pick the outside diameter of the outer ring (dimension D, in mm) in the options above: the stud size, thread and ratings follow from the model number shown in the Model Details. All sizes on this page are stud types with a hexagon hole in the stud head and full complement rollers.
Some stud sizes come with more than one outer ring, so check the diameter against your cam track: 22 mm OD and 26 mm OD (CF10VBUUR and CF10-1VBUUR); 30 mm OD and 32 mm OD (CF12VBUUR and CF12-1VBUUR); 47 mm OD and 52 mm OD (CF20-1VBUUR and CF20VBUUR); and others in the size table.
Match the stud diameter and thread to your mounting hole and nut: the Model Details list the thread, the thread length and the hexagon hole size.
This page is the crowned outer ring type (R in the part number). The crowned ring is effective in moderating the edge load caused by mounting errors, and it is the type to use if the outer ring does not make good contact with the mating running surface.
Every model here is the full complement type, which is suited to heavy loads at low speed rotations.
Fitting and use
Make the centre axis of the mounting hole perpendicular to the direction of travel and match the stud shoulder accurately with the seating surface given by dimension f (min.) in the Model Details. Keep the chamfer on the mounting hole as small as possible (C0.5 or so), and do not hit the flange head directly with a hammer, because that can lead to irregular rotation or cracking.
Hold the hexagon hole with a hex key and tighten the nut with a spanner: turning the hexagon hole itself to tighten can damage it. Do not exceed the maximum tightening torque in the Model Details, because an over-tightened thread can break. Where loosening is possible, use a lock nut, spring washer or self-locking nut.
The mark on the flange head shows the oil hole position on the raceway: keep the oil hole out of the loading zone. The recommended mounting hole tolerance for the stud is H7.
Lubrication: the models on this page are prepacked with grease.
Track capacity is the load that can be applied continuously on a steel cam guide surface of 40 HRC without deforming or indenting it. For a different hardness it is multiplied by the track capacity factor (0.45 at 30 HRC): ask AIMS if you need the factor for your guide surface.
If you are unsure which size suits your cam track and mounting, send AIMS the part number or the dimensions and we will help you confirm it.
Related products
Other IKO CF series pages (other outer ring, rolling element, seal or material types): CF series cam followers, full complement, sealed, cylindrical, 6 to 30 mm stud, CF series cam followers, with cage, sealed, crowned, 5 to 30 mm stud, CF series cam followers, with cage, sealed, cylindrical, 3 to 30 mm stud, CF series stainless steel cam followers, with cage, sealed, crowned, 6 to 20 mm stud and CF series stainless steel cam followers, with cage, sealed, cylindrical, 3 to 10 mm stud. Related stud types: CFE series eccentric cam followers, full complement, sealed, crowned, M18 to M30 thread and NUCF series cylindrical roller cam followers, full complement, shield type, crowned, 10 to 30 mm stud.
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IKO CF Series Cam Followers, Hex Hole, Full Complement, Sealed, Crowned Outer Ring, 6 to 30 mm stud: 47
SKU: A0156196 | Model: CF20-1VBUUR/IKO
IKO CF20-1VBUUR cam follower, 20 mm stud, 47 mm x 24 mm wide, full complement, sealed, crowned outer ring. Order online from AIMS Industrial.