Features of the Cam Follower

Transcription

1 507E Features and Types Features o the ring Seal Side plate Stud Needle roller Cage Fig.1 Structure o Model CF UU-A Structure and Features The is a compact and highly rigid bearing with a shat. It contains needle rollers and is used as a guide roller or cam mechanisms or straight motion. Since its rotates while keeping direct contact with the mating surace, this product is thickwalled and designed to bear an impact load. Inside the, needle rollers and a precision cage are incorporated. This prevents the product rom skewing and achieves a superb rotation perormance. And, as a result, the product is capable o easily withstanding high-speed rotation. There are two types o the in shape: spherical and cylindrical. The spherical easily absorbs a distortion o the shat center when the cam ollower is installed and helps lighten a biased load. The is used in a wide range o applications such as cam mechanisms o automatic machines, dedicated machines as well as carrier systems, conveyors, bookbinding machines, tool changers o machining centers, pallet changers, automatic coating machines, and sliding orks o automatic warehouses. A

2 507E Features and Types Features o the with Grease Nipple With previous models it was necessary to abricate a jig in order to install a plug or grease nipple. The Model CF-AB with grease nipples comes equipped with grease nipples on both sides, so it can be used immediately, without modii cation. An Allen wrench can be used to anchor the stud rom either the head or the threaded end, and it can be lubricated rom either end as well. This ensures that there will be adequate space to install the unit and perorm maintenance, improving work ei ciency. Dedicated nozzle o Grease Gun Unit Jig Grease nipple Grease nipple Jig Dedicated nozzle o Grease Gun Unit CF-AB Conventional type Containing Thrust Balls Even a slight mounting error in a high speed cam mechanism operating in a harsh environment could cause abnormal wear to the thrust unit o the cam ollower. In such a case, using Containing Thrust Balls model CFN will bring about a signiicant eect in increasing the durability. Models CFN5 to 12 are standard-stock items. I desiring a size other than the standard items, contact THK. Model CFN is capable o receiving a thrust load caused by a slight mounting error. However, it is necessary to minimize a component o thrust orce, or prevent it rom occurring, when designing the cam mechanism and installing the Cam Follower. Fig.2 A

3 Types o the Types and Features with Grease Nipple Model CF-AB A hexagonal socket is provided on both stud ends, and a grease nipple or greasing is i tted to the inside. Thereore, lubrication and mounting rom both directions is possible. Speciication Table Stud : mm Model CF-AB Popular Type Model CF It is a popular type o provided with a driver groove on the head o the stud. Speciication Table Stud : 5 10 mm Model CF with a Hexagon Socket Model CF-A Since the stud head has a hexagon socket, this model can easily be installed using a hexagon wrench. Speciication Table Stud : 3 10 mm Model CF-A A

4 Features and Types Types o the Eccentric Models CFH-AB, CFH-A Because there is an eccentricity o 0.25 to 1.0 mm between the mounting shat o the stud and the stud head, slight positioning adjustments can easily be made simply by rotating the stud. This eliminates the need to align the cam ollower with the cam groove or perorm precision machining on the mounting hole, greatly reducing the time and labor required or machining and assembly. Model CFH-AB: Equipped with grease nipple and hexagonal sockets; compatible with stud s o 12 to 30 mm. Model CFH-A: Equipped with hexagonal sockets; compatible with stud s o 5 to 10 mm. Speciication Table Model CFH-A Containing Thrust Balls Model CFN-R-A On the inside, this model is equipped with thrust-load ball bearings. This eectively prevents riction and wear on the slip surace when a thrust load occurs due to aulty installation or the like. Stud : 5 12 mm with a Tapped Hole or Greasing Model CFT Basically the same as the popular type Cam Follower, this model is provided with tapped holes or piping on the stud head and the thread. It is optimal or locations where an integrated piping or greasing is required. Speciication Table Model CFN-R-A Speciication Table Stud : 6 30 mm Model CFT A

5 -ring Compact-type Model CFS-A Speciication Table This contains extremely ine needle rollers. The external is extremely small relative to the stud, allowing a compact design. Stud : mm Model CFS-A Easy-mount Model CF-SFU For easy mounting, the stud is equipped with a slot enabling it to be secured with a screw. This greatly reduces the time and labor required or installation and is ideal or applications where there is no space to secure the stud with a nut. Speciication Table Stud : 6 20 mm Model CF-SFU Model NUCF-AB Double-row Cylindrical-roller This model, which employs a double row o cylindrical rollers, can accommodate high radial loads. A hexagonal socket is provided on both stud ends, and a grease nipple or greasing is i tted to the inside. Thereore, lubrication and mounting rom both directions is possible. Stud : mm Speciication Table Model NUCF-AB A

6 Features and Types Types o the Options Note: Dierent eatures and options are available, depending on the model. For details, please reer to the dimension table or the product in question. Roller guide With cage No Symbol The caged ormat, which oers optimal lubrication conditions, is best or high-speed rotation. Full rollers V The ull-complement roller ormat is best or low-speed rotation and heavy loads. Note: Please make sure to ollow the lubrication schedule. Type o material Carbon steel and stainless steel are available. Stainless steel, which is more resistant to corrosion, is the best choice or use in clean rooms and other oil-ree environments. With/without a seal Without seal No symbol Seal With seal UU Equipped with a highly wear-resistant synthetic rubber seal to keep oreign matter out o the unit's interior. ring outer surace coniguration Flat Curved Cylindrical No Symbol This model oers an expansive area o contact between rolling suraces and is thereore ideal or heavy loads and low-rigidity rolling suraces. Spherical R This helps alleviate the eects o an eccentric load in the event o adverse conditions around the and rolling surace. A

7 Model CF-AB with Grease Nipple nipple C B3 Optional speciications Symbol Roller guide With cage No Symbol Full rollers V Material Carbon steel No Symbol Stainless steel M Seal Without seal No Symbol With seal UU ring Cylindrical No Symbol shape Spherical R H D r B C1 2 B2 G1 nipple G H B1 Stud Threaded ring width Main dimensions Overall length Shoulder height d Model No. D C G G 1 B B 1 B 2 B 3 C 1 d 2 H r smin (Min.) 12 CF 12-AB M CF 12-1-AB M CF 16-AB M CF 18-AB M CF 20-AB M CF 20-1-AB M CF 24-AB M CF 24-1-AB M CF 30-AB M CF 30-1-AB M CF 30-2-AB M Note) For inormation on accuracy standards, please reer to. Model number coding CF12 V M UU R -AB Model No. Note) For accessories, see. No symbol: With cage V : Full-roller Type No symbol: Carbon steel M : Stainless steel Stud With Hexagonal Socket At Both Ends No Symbol : Cylindrical R : Spherical No symbol: Without seal UU : With seal

8 R500 (CF12 to CF18) R1000 (CF20 or higher) R500 (CF12 to CF18) R1000 (CF20 or higher) Model CF-R-AB Model CF-UUR-AB Basic Load Rating With cage Full rollers Maximum permissible load Track Load Capacity Rotational speed limit * Cylindrical Spherical With cage Full rollers With cage Unit: mm Mass Full rollers C C 0 C C 0 F 0 kn kn kn kn kn kn kn min 1 min 1 g g Note) The rotation speed limit value in the table (*) applies to models that have no seal and use grease lubrication. With those models using oil lubrication, up to 130% o this value is permitted. With those attached with seals, up to 70% o this value is permitted.

9 Model CF (Popular Type) C Optional speciications Symbol Roller guide With cage No Symbol Full rollers V Material Carbon steel No Symbol Stainless steel M Seal Without seal No Symbol With seal UU ring Cylindrical No Symbol shape Spherical R φ D φ d1 r B C1 φ d B2 G1 G B1 Stud ring width Threaded Main dimensions Overall length Shoulder height d Model No. D C G G 1 B B 1 B 2 C 1 d 1 r smin (Min.) 5 CF M CF M CF M CF M CF M Note) For inormation on accuracy standards, please reer to. Model number coding CF6 V M UU R -N Model No. No symbol: No grease nipple No symbol: With cage N : Dedicated grease nipple included See V : Full-roller Type No symbol: Carbon steel M : Stainless steel no symbol: without seal No Symbol : Cylindrical UU : With seal R : Spherical Note) Full-roller Type is applicable or Stud Diameter 6 to 10.

10 φ R250 (CF5) R500 (CF6 to CF10) R250 (CF5) R500 (CF6 to CF10) Model CF-R Basic load rating With cage Full rollers Maximum permissible load Model CF UUR Track load capacity Rotational speed limit * Mass Cylindrical Spherical With cage Full rollers With cage Unit: mm Full rollers C C 0 C C 0 F 0 kn kn kn kn kn kn kn min -1 min -1 g g Note) The rotation speed limit value in the table (*) applies to models that have no seal and use grease lubrication. With those models using oil lubrication, up to 130% o this value is permitted. With those attached with seals, up to 70% o this value is permitted.

11 with Hexagon Socket Model CF-A Optional speciications Symbol Roller guide With cage No Symbol Full rollers V Material Carbon steel No Symbol Stainless steel M Seal Without seal No Symbol With seal UU ring Cylindrical No Symbol shape Spherical R φ φ Stud Main dimensions Threaded Overall ring length width Shoulder height d Model No. D C G G 1 B B 1 B 2 C 1 H r smin (Min.) 3 CF 3-A 10 7 M (1.5) CF 4-A 12 8 M (2) CF 5-A 13 9 M (2.5) CF 6-A M CF 8-A M CF 10-A M CF 10-1-A M Note) For inormation on accuracy standards, please reer to. Those models do not have a greasing hole and cannot be replenished with grease. Model number coding CF10 V M UU R -A N Model No. No symbol: No grease nipple No symbol: With cage N : Dedicated grease nipple included (see ) V : Full-roller Type Stud head with a hexagon socket No symbol: Carbon steel No Symbol : Cylindrical M : Stainless steel R : Spherical no symbol: without seal UU : With seal Note) Full-roller Type is applicable or Stud Diameter 6 to 10.

12 φ R250 (CF5 or lower) R500 (CF6 to CF10) R250 (CF5 or lower) R500 (CF6 to CF10) With cage Basic load rating Model CF-R-A Full rollers Maximum permissible load Model CF UUR-A Unit: mm Track load capacity Rotational speed limit * Mass Cylindrical Spherical With cage Full rollers With cage Full rollers C C 0 C C 0 F 0 kn kn kn kn kn kn kn min -1 min -1 g g Note1) indicates that the dimensions in the parentheses in this row apply to stainless steel types. The rotation speed limit value in the table (*) applies to models that have no seal and use grease lubrication. With those models using oil lubrication, up to 130% o this value is permitted. With those attached with seals, up to 70% o this value is permitted.

13 Eccentric with Grease Nipple Model CFH-AB Optional speciications Symbol Roller guide With cage No Symbol Full rollers V Material Carbon steel No Symbol Stainless steel M Seal Without seal No Symbol With seal UU ring Cylindrical No Symbol shape Spherical R H nipple D r C B C1 B2 G1 nipple G H e B1 Stud ring Threaded width Main dimensions Overall length Runout Shoulder height d Model No. D C G G 1 B B 1 B 2 C 1 e H r smin (Min.) 12 CFH 12-AB M CFH 12-1-AB M CFH 16-AB M CFH 18-AB M CFH 20-AB M CFH 20-1-AB M CFH 24-AB M CFH 24-1-AB M CFH 30-AB M CFH 30-1-AB M CFH 30-2-AB M Note) For inormation on accuracy standards, please reer to. Model number coding CFH12 V M UU R -AB Model No. Note) For accessories, see. No symbol: With cage V : Full-roller Type No symbol: Carbon steel M : Stainless steel Stud With Hexagonal Socket At Both Ends No Symbol : Cylindrical R : Spherical No symbol: Without seal UU : With seal

14 R500 (CFH18 or lower) R1000 (CFH20 or higher) R500 (CFH18 or lower) R1000 (CFH20 or higher) Model CFH-R-AB Model CFH-UUR-AB Basic Load Rating With cage Full rollers Maximum permissible load Track load capacity Rotational speed limit * Mass Cylindrical Spherical With cage Full rollers With cage Unit: mm Full rollers C C 0 C C 0 F 0 kn kn kn kn kn kn kn min 1 min 1 g g Note) The rotation speed limit value in the table (*) applies to models that have no seal and use grease lubrication. With those models using oil lubrication, up to 130% o this value is permitted. With those attached with seals, up to 70% o this value is permitted.

15 Eccentric with Hexagon Socket Model CFH-A Optional speciications Symbol Roller guide With cage No Symbol Full rollers V Material Carbon steel No Symbol Stainless steel M Seal Without seal No Symbol With seal UU ring Cylindrical No Symbol shape Spherical R H φ D r C B φ d G1 C1 B1 B2 φ d1 G e Stud ring width Threaded Main dimensions Overall Runout Shoulder length height d Model No. D C G G 1 B B 1 B 2 C 1 e H r smin (Min.) 5 CFH 5-A 13 9 M CFH 6-A M CFH 8-A M CFH 10-A M CFH 10-1-A M Note) THK also manuactures types that have a driver groove and a greasing hole on the head. (Model numbers o types with a driver groove do not include symbol -A in the end.) For inormation on accuracy standards, please reer to. Those models do not have a greasing hole and cannot be replenished with grease. Model number coding CFH10 V M UU R -A N Model No. No Symbol : No grease nipple No symbol: With cage N : Dedicated grease nipple included See V : Full-roller Type Stud head with a hexagon socket No symbol: Carbon steel No Symbol : Cylindrical M : Stainless steel R : Spherical no symbol: without seal UU : With seal Note) Full-roller Type is applicable or Stud Diameter 6 to 10.

16 φ Model CFH-R Basic load rating With cage Full rollers Maximum permissible load Model CFH UUR Track load capacity Rotational speed limit * Mass Cylindrical Spherical With cage Full rollers With cage Unit: mm Full rollers C C 0 C C 0 F 0 kn kn kn kn kn kn kn min -1 min -1 g g Note1) : Model CFH5M-A is available only in carbon steel. Note2) The rotation speed limit value in the table (*) applies to models that have no seal and use grease lubrication. With those models using oil lubrication, up to 130% o this value is permitted. With those attached with seals, up to 70% o this value is permitted.

17 Containing Thrust Balls Model CFN-R-A Optional speciications Symbol Roller guide With cage No Symbol Material Carbon steel No Symbol Seal Without seal No Symbol ring shape Spherical R H φ D r C B3 φ d2 φ d G1 φ d1 G B C1 B1 R250 (CFN5) R500 (CFN6 to CFN12) B2 Stud Model No. Main d Spherical ring width Threaded Overall length D C G G 1 B B 1 B 2 B 3 C 1 d 1 5 CFN 5R-A 13 9 M CFN 6R-A M CFN 8R-A M CFN 10R-A M CFN 12R-A M Note) For inormation on accuracy standards, please reer to. Those models marked with do not have a greasing hole and cannot be replenished with grease. Model number coding CFN12 R -A N Model No. No Symbol : No grease nipple R Spherical N : Dedicated grease nipple included See Stud head with a hexagon socket

18 φ Unit: mm dimensions Basic load rating Permissible thrust load Maximum permissible load Rotational Track load speed capacity limit * Mass Shoulder height C C 0 F 0 d 2 H r smin (Min.) kn kn N kn kn min -1 g Note) The rotation speed limit value in the table (*) applies to models using grease lubrication. With those models using oil lubrication, up to 130% o this value is permitted.

19 with Tapped Greasing Hole Model CFT C B3 Optional speciications Symbol Roller guide With cage No Symbol Full rollers V Material Carbon steel No Symbol Stainless steel M Seal Without seal No Symbol With seal UU ring Cylindrical No Symbol shape Spherical R φ D S1 r B φ d2 φ d C1 B2 G1 S1 G B1 Stud ring Threaded width Main dimensions Overall length Shoulder height d Model No. D C G G 1 B B 1 B 2 B 3 C 1 S 1 d 2 r smin (Min.) 6 CFT M M CFT M M CFT M M CFT M M CFT M M CFT M M CFT M PT 1/ CFT M PT 1/ CFT M PT 1/ CFT M PT 1/ CFT M PT 1/ CFT M PT 1/ CFT M PT 1/ CFT M PT 1/ CFT M PT 1/ Note) For inormation on accuracy standards, please reer to. Those models marked with have a greasing hole only on the head. Model number coding CFT30-1 V M UU R -N Model No. No symbol: With cage V : Full-roller Type No symbol: Carbon steel M : Stainless steel No Symbol : No grease nipple N : Dedicated grease nipple included See No Symbol: Cylindrical R : Spherical No symbol: Without seal UU : With seal

20 φ R500 (CFT18 or lower) R1000 (CFT20 or higher) R500 (CFT18 or lower) R1000 (CFT20 or higher) Model CFT-R Model CFT UUR With cage Basic load rating Full rollers Maximum permissible load Track load capacity Rotational speed limit * Mass Cylindrical Spherical With cage Full rollers With cage Unit: mm Full rollers C C 0 C C 0 F 0 kn kn kn kn kn kn kn min -1 min -1 g g Note) The rotation speed limit value in the table (*) applies to models that have no seal and use grease lubrication. With those models using oil lubrication, up to 130% o this value is permitted. With those attached with seals, up to 70% o this value is permitted.

21 -ring Compact-type Model CFS-A C Optional speciications Symbol Roller guide With cage No Symbol Full rollers V Material Carbon steel No Symbol Stainless steel M Seal Without seal No Symbol ring shape Cylindrical No Symbol H φ D B C1 φ d B2 G1 G B1 Stud ring width Threaded Main dimensions Overall length Shoulder height d Model No. D C G G 1 B B 1 B 2 C 1 H (Min.) 2.5 CFS 2.5-A 5 3 M CFS 3-A 6 4 M CFS 4-A 8 5 M CFS 5-A 10 6 M CFS 6-A 12 7 M Note) For inormation on accuracy standards, please reer to. Model number coding CFS3 V M -A Model No. No symbol: With cage V : Full-roller Type No symbol: Carbon steel M : Stainless steel Stud head with a hexagon socket Note) Model CFS is only compatible with cylindrical types without seals and with stud head hexagon sockets.

22 φ Unit: mm With cage Basic load rating Full rollers Maximum permissible load Track load capacity Cylindrical outer ring Mass With cage Full rollers C C 0 C C 0 F 0 kn kn kn kn kn kn g g Since model CFS does not have a greasing hole, it cannot be replenished with grease.

23 Easy-mount Model CF-SFU C l1 l2 Optional speciications Symbol Roller guide With cage No Symbol Material Carbon steel No Symbol Seal With seal No Symbol ring Cylindrical No Symbol shape Spherical R φ D φ d1 r φ d B C1 e B2 90 B1 Stud ring width Overall length Main dimensions d Model No. D C B B 1 B 2 C 1 l 1 l 2 d 1 r smin e 6 CF-SFU CF-SFU CF-SFU CF-SFU CF-SFU CF-SFU CF-SFU CF-SFU CF-SFU CF-SFU Note) For inormation on accuracy standards, please reer to. Model number coding CF-SFU-6 R -N Model No. No Symbol : Cylindrical R : Spherical No Symbol : No grease nipple N : Dedicated grease nipple included See Note) Model CF-SFU is itted with UU seals even where no UU symbol is used.

24 h t φ φ H R500 (CF-SFU-6 to CF-SFU-18) R1000 (CF-SFU-20 or higher) Model CF-SFU R Mounting dimension H Mounting dimensions Shoulder height Basic load rating Maximum permissible With cage load Track load capacity Cylindrical Spherical Rotational speed limit * With cage Unit: mm Mass With cage Tolerance t h C C 0 F 0 H7 (Min.) (Min.) (reerence value) kn kn kn kn kn min -1 g Note) *The rotational speed limit applies to models with grease lubrication and seals. Model CF-SFU is delivered with a stopper plug i tted.

25 Double-row Cylindrical-roller Model NUCF-AB nipple r C B3 nipple Optional speciications Symbol Roller guide Full rollers No Symbol Material Carbon steel No Symbol Seal Without seal No Symbol ring Cylindrical No Symbol shape Spherical R H φ D φ d φ d2 G1 G H C1 B B2 B1 Stud ring width Threaded Main dimensions Overall length Shoulder height d Model No. D C G G 1 B B 1 B 2 B 3 C 1 d 2 H r smin (Min.) 16 NUCF 16-AB M NUCF 18-AB M NUCF 20- AB M NUCF 20-1-AB M NUCF 24-AB M NUCF 24-1-AB M NUCF 30-AB M NUCF 30-2-AB M Note) For inormation on accuracy standards, please reer to. Model number coding NUCF16 R -AB Model No. AB: Stud With Hexagonal Socket At Both Ends No Symbol: Cylindrical R : Spherical Note) For accessories, see.

26 φ R500 (NUCF18 or lower) R1000 (NUCF20 or higher) Unit: mm Basic load rating Maximum permissible load Track load capacity Cylindrical Spherical Rotational speed limit Mass C C 0 F 0 kn kn kn kn kn min -1 g