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Cam Follower CF-AB Model (CF18VUU-AB)

THK

Compact and rigid shaft bearing with a needle bearing in the cam follower. Ideal for use as a linear motion guide roller in the cam mechanism of automatic and dedicated machines.
[Features]
・ CF-AB model comes with hex sockets at both ends of the stud and grease fitting for lubrication in the back. Can be installed and refilled from both directions.

(i)Caution

Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.

Part Number

Configured Part Number is shown.

CF18VUU-AB

Product Specifications
Part Numbers
Catalog

Drawing

Product Specifications

Optional specifications		Symbol
Guidance method of the roller	With cage	No symbol
Guidance method of the roller	Full rollers	V
Materials	Carbon steel	No symbol
Materials	Stainless steel	M
Seal	No Seal	No symbol
Seal	With seal	UU
Outer ring shape	Cylindrical Outer Ring	No symbol
Outer ring shape	Spherical Outer Ring	R

Standards Table

Stud diameter d	Part number	Main dimensions
		Outer Diameter D	Outer ring width C	Thread G	G₁	B	Overall length B₁	B₂	B₃	C₁	d2	H	r smin	Shoulder dimensions f (Minimum)
		Outer Diameter D	Outer ring width C	Thread G	G₁	B	Overall length B₁	B₂	B₃	C₁	d2	H	r smin	Shoulder dimensions f (Minimum)
12	CF 12-AB	30	14	M12 × 1.5	13	15	40	25	6	0.6	3	6	0.6	20
12	CF 12-1-AB	32	14	M12 × 1.5	13	15	40	25	6	0.6	3	6	0.6	20
16	CF 16-AB	35	18	M16 × 1.5	17	19.5	52	32.5	8	0.8	3	6	0.6	24
18	CF 18-AB	40	20	M18 × 1.5	19	21.5	58	36.5	8	0.8	3	6	1	26
20	CF 20-AB	52	24	M20 × 1.5	21	25.5	66	40.5	9	0.8	4	8	1	36
20	CF 20-1-AB	47	24	M20 × 1.5	21	25.5	66	40.5	9	0.8	4	8	1	36
24	CF 24-AB	62	29	M24 × 1.5	25	30.5	80	49.5	11	0.8	4	8	1	40
24	CF 24-1-AB	72	29	M24 × 1.5	25	30.5	80	49.5	11	0.8	4	8	1	40
30	CF 30-AB	80	35	M30 × 1.5	32	37	100	63	15	1	4	8	1	46
30	CF 30-1-AB	85	35	M30 × 1.5	32	37	100	63	15	1	4	8	1	46
30	CF 30-2-AB	90	35	M30 × 1.5	32	37	100	63	15	1	4	8	1	46

Stud diameter d	Part number	Basic Rated Load				Maximum Allowable Load F₀ kN	Track Load Capacity		Limit rotation speed *		Weight
		With cage		Full rollers			Cylindrical Outer Ring kN	Spherical Outer Ring kN	With cage min^-1	Full rollers min^-1	With cage g	Full rollers g
		C kN	C₀ kN	C kN	C₀ kN		Cylindrical Outer Ring kN	Spherical Outer Ring kN	With cage min^-1	Full rollers min^-1	With cage g	Full rollers g
12	CF 12-AB	7.87	9.79	13.4	19.8	9.37	7.06	2.45	14,000	5,800	105	107
12	CF 12-1-AB	7.87	9.79	13.4	19.8	9.37	7.45	2.74	14,000	5,800	115	117
16	CF 16-AB	12	18.3	20.6	37.6	17.3	11.2	3.14	10,000	4,500	205	207
18	CF 18-AB	14.7	25.2	25.2	51.3	26.1	14.4	3.72	8,500	3,800	295	300
20	CF 20-AB	20.7	34.8	33.2	64.8	32.1	23.2	8.23	7,000	3,400	525	530
20	CF 20-1-AB	20.7	34.8	33.2	64.8	32.1	21	7.15	7,000	3,400	450	455
24	CF 24-AB	30.6	53.2	46.7	92.9	49.5	34.2	10.5	6,500	2,900	915	925
24	CF 24-1-AB	30.6	53.2	46.7	92.9	49.5	39.8	12.9	6,500	2,900	1,150	1,160
30	CF 30-AB	45.4	87.6	67.6	145	73.7	52.6	14.9	5,000	2,300	1,880	1,890
30	CF 30-1-AB	45.4	87.6	67.6	145	73.7	56	16.1	5,000	2,300	1,950	1,960
30	CF 30-2-AB	45.4	87.6	67.6	145	73.7	59.3	17.3	5,000	2,300	2,000	2,010

*) Please refer to the digital catalog for accuracy standards.
* Compatible with unsealed, grease lubrication. Up to 130% of this value is acceptable for oil lubrication and up to 70% of this value for sealed.

Product features details

Figure 1 Cam Follower CF: UU-A type structure

Structure and features

A cam follower is a compact and highly rigid shaft bearing that has a needle roller built into it and is used as a cam mechanism and a guide roller for linear motion.
Since the outer ring rotates while in direct contact with the mating surface, it is designed to be thick and able to withstand impact loads.
In addition, a needle roller with a precision cage is built into the outer ring to prevent skewing, provide excellent rotation performance, and withstand high-speed rotation.
The outer diameter of the outer ring has a spherical surface and a cylinder, and the spherical outer ring easily absorbs the deviation of the axial center at the time of mounting and helps to alleviate the eccentric load.
It is widely used in automatic machines, cam mechanisms for dedicated machines, various conveyors, conveyors, bookbinding machines, tool changers for machining centers, pallet changers, automatic painting machines, sliding forks in automated warehouses, etc.

Cam follower with grease fitting

In the conventional product, it was necessary to manufacture a jig and attach a plug and grease nipple, but the cam follower CF-AB type with grease fitting has grease nipples on both sides, so it can be used immediately after taking it out of the box.
You can also use a hex key to fix the stud from either the head side or the threaded side, and you can lubricate from both directions. Work efficiency is improved because installation and maintenance can be performed without worrying about the installation space.

Cam follower with thrust ball

In a harsh high-speed cam mechanism, a slight mounting error may cause abnormal wear on the thrust of the cam follower, etc. In such a case, using the cam follower CFN type with thrust ball has a great effect on durability.
The CFN type can receive only the thrust load due to a slight mounting error, but please be careful in designing and assembling so that the thrust component force is not generated as much as possible.

Figure 2

Selection support information

Part number configuration example

*) Please refer to the digital catalog for accessories.

Cautions/Prohibitions

Handling
(1) Do not disassemble each part. It may cause loss of function.
(2) Do not drop or hit the cam follower. It may cause injury or damage. Also, if it is impacted, it may lose its function even if it does not look damaged.
(3) When handling the product, wear protective gloves, safety shoes, etc., as necessary to ensure safety.

Usage precautions
(1) Refer to Digital Catalog Table 1 for the fastening torque when fixing the cam follower, and use a torque wrench or the like to turn the nut to fasten.
(2) Avoid using the product above 80°C. If this temperature is exceeded, the resin and rubber parts may be deformed or damaged.
(3) Be careful not to let foreign objects such as chips and coolant flow in. Excessive tightening will cause damage.
(4) If foreign objects such as chips adheres, clean it and then refill the lubricant.
(5) Since the cam follower supports radial load, avoid using it to apply thrust load.
(6) In the case of slight rocking, it is difficult for an oil film to form on the contact surface between the rolling surface and the rolling element, which may cause fretting, therefore, use grease with excellent fretting resistance. In addition, it is recommended to form an oil film on the rolling surface and rolling element by periodically applying an operation of about 1 rotation.
(7) If the rigidity and accuracy of the mounting member are insufficient, the bearing load will be locally concentrated and the bearing performance will be significantly reduced. Therefore, carefully consider the rigidity and accuracy of the housing and base, and the strength of the fixing bolts.

Lubrication
(1) Lithium soap-based grease No. 2 is used as standard grease for cam followers.
(CFN type uses urea grease No. 2)
Please re-grease as appropriate during use. Avoid relubricating different lubricants. Even if the greases have the same type of thickener, they may adversely affect each other due to different additives, etc. (See Digital Catalog Dust Protection and Lubrication)
(2) Apply lubricant between the cam follower and the rolling surface of the other party before use.
(3) CF, CFH24 and above cam followers (Symbol-A, excluding SUS) with hex socket heads have a structure that prevents grease from leaking from the hex sockets by press-fitting a plug into the through hole that connects the hex socket bottom and the grease hole (refer to ød1, ød2: Digital Catalog Dimensional Diagram).
When greasing, be careful not to remove the plug from the bottom of the hexagonal hole due to excessive pressure.
(4) When using the product in a place where vibration is constantly applied, in a cleanroom, in a vacuum, or in a special environment such as low or high temperature, use grease suitable for the specifications and environment.
(5) The cone penetration of grease changes depending on the temperature. Please note that the sliding resistance of the cam follower also changes depending on the change in cone penetration.
(6) After lubrication, the sliding resistance of the cam follower may increase due to the stirring resistance of the grease. Be sure to run-in and let the grease spread sufficiently before operating the machine.
(7) Even if it has a seal, excess grease may scatter around at the beginning of use or immediately after re-greasing, so wipe it off if necessary.
(8) Grease deteriorates in properties over time and its lubrication performance deteriorates, so it is necessary to check and replenish the grease according to the frequency of use.
(9) The greasing interval varies depending on the usage conditions and operating environment. Please set the final greasing interval and amount on the actual machine.

Storage
Please keep the cam follower indoors in the manufacturer's packaging, avoiding high temperature, low temperature and high humidity.
For products that have been stored for a long period of time, the internal lubricant may have deteriorated over time, so re-lubricate the product before use.

Disposal
Please dispose of the product appropriately as industrial waste.

: 30; 45; 60

Part Number
CF18VUU-AB

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Outer Diameter D (Ø)	Width C (mm)	Roller Type	Cam follower stud screw (mm)	Material	Rolling Guide Method	Basic Load Rating Dynamic Rating (kN)	Basic Load Rating Static Rating (kN)	Allowable Rotational Speed (rpm)	Sealing Structure	Track Load Capacity (kN)
	SGD 53.52	1 Piece(s)		4 Day(s) or more	10	40	20	Cylindrical Outer Ring	M18	Carbon Steel	Total roller type	25.2	51.3	3800	With Seal	14.4

Basic Information

Product Category	Cam Followers	Fastening Methods	With Head Screw Part Hexagonal Hole	Cam Followers Type	Standard
Size Standard	Metric System	Roller Lining	No	Axis	Presence

Please check the type/dimensions/specifications of the part CF18VUU-AB in the Cam Follower CF-AB Model series.

Configure

1 Part Numbers

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Configure Remaining Specifications

Completed

Specification/Dimensions

type
- CF-AB
- CF-M-AB
- CF-MR-AB
- CF-R-AB
- CF-V-AB
- CF-VM-AB
- CF-VMR-AB
- CF-VR-AB
Clear
Outer Diameter D(Ø)
30

32

35

40

47

52

62

72

80

90
Clear
Width C(mm)
14

18

20

24

29

35
Clear
Roller Type
- Spherical Outer Ring
- Cylindrical Outer Ring
Clear
Cam follower stud screw(mm)
M12

M16

M18

M20

M24

M30
Clear
Material
- Carbon Steel
- Stainless Steel
Clear
Rolling Guide Method
- With Gage
- Total roller type
Clear
Allowable Rotational Speed(rpm)
2300

2900

3400

3800

4500

5000

5800

6500

7000

8500

10000

14000
Clear
Sealing Structure
- No Seal
- With Seal
Clear
Track Load Capacity(kN)
2.45

2.74

3.14

3.72

7.06

7.15

7.45

8.23

10.5

11.2

12.9

14.4

14.9

17.3

21

23.2

34.2

52.6
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

4 Day(s) or Less

11 Day(s) or Less

21 Day(s) or Less

22 Day(s) or Less

33 Day(s) or Less

83 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Similar Part Numbers

Part Number
CF12-1R-AB
CF12-1UU-AB
CF12-1UUR-AB
CF18VUUR-AB
CF20-1-AB
CF20-1MUU-AB

Standard Unit Price	Minimum order quantity	Days to Ship	RoHS	Outer Diameter D (Ø)	Width C (mm)	Roller Type	Cam follower stud screw (mm)	Material	Rolling Guide Method	Basic Load Rating Dynamic Rating (kN)	Basic Load Rating Static Rating (kN)	Allowable Rotational Speed (rpm)	Sealing Structure	Track Load Capacity (kN)
SGD 34.10	1 Piece(s)	4 Day(s) or more	10	32	14	Spherical Outer Ring	M12	Carbon Steel	With Gage	7.87	9.79	14000	No Seal	2.74
SGD 36.88	1 Piece(s)	4 Day(s) or more	10	32	14	Cylindrical Outer Ring	M12	Carbon Steel	With Gage	7.87	9.79	14000	With Seal	7.45
SGD 44.67	1 Piece(s)	4 Day(s) or more	10	32	14	Spherical Outer Ring	M12	Carbon Steel	With Gage	7.87	9.79	14000	With Seal	2.74
SGD 63.70	1 Piece(s)	4 Day(s) or more	10	40	20	Spherical Outer Ring	M18	Carbon Steel	Total roller type	25.2	51.3	3800	With Seal	3.72
SGD 49.52	1 Piece(s)	4 Day(s) or more	10	47	24	Cylindrical Outer Ring	M20	Carbon Steel	With Gage	20.7	34.8	7000	No Seal	21
SGD 180.04	1 Piece(s)	22 Day(s) or more	10	47	24	Cylindrical Outer Ring	M20	Stainless Steel	With Gage	20.7	34.8	7000	With Seal	21

Tech Support

Factory Automation, Electronics, Tools, & MRO (Maintenance, Repair and Operations): Tel：(65) 6733 7211 / FAX：(65) 6733 0211; 9:00am - 6:00pm (Monday - Friday); Technical Inquiry

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Cam Follower CF-AB Model (CF18VUU-AB)

(i)Caution

Drawing

Product Specifications

Standards Table

Product features details

Structure and features

Cam follower with grease fitting

Cam follower with thrust ball

Selection support information

Part number configuration example

Cautions/Prohibitions

Basic Information

Configure

Specification/Dimensions

type

Outer Diameter D(Ø)

Width C(mm)

Roller Type

Cam follower stud screw(mm)

Material

Rolling Guide Method

Allowable Rotational Speed(rpm)

Sealing Structure

Track Load Capacity(kN)

CAD

Days to Ship

Specify Alterations

Similar Part Numbers

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