Small dampers refine end product

4 Motion Control Small dampers refine end product ACE rotary dampers mainly provide an invisible yet valuable service as a maintenance-free machine element to allow controlled deceleration of rotary or linear movements. They are often necessary to make careful opening and closing of small lids, compartments and drawers possible and they protect sensitive components while increasing the quality and value of products. They are easy to integrate. The harmoniously gentle movements of these little decelerators can be achieved with continual rotation or with limited pivoting angles. They slow down left, right or double sided rotation. Suitable for almost any application and currently also available in adjustable variations, they provide braking torques of.5 to 4. Partial Rotation Angle, Adjustable e.g. FYT-H and FYN-H Sealing Ring Damping Vane Fluid General Function Rotary dampers operate on the principle of fl uid damping. The damping moment is determined by the viscosity of the fl uid and the dimensioning of the throttle gap or throttle orifi ces. ACE Stoßdämpfer GmbH. PO Box 5. D-474 Langenfeld. T +49 ()73-96-4. info@ace-int.eu. www.ace-ace.com

Roatary Dampers Technical Information 5 with Rotate for the plus in quality: For smooth, quiet movements of small hoods, fl aps and fans these continuously rotating rotary dampers from ACE decelerate either right, left or two-sided rotation right in the pivot point or linear through a gear and gear rack. The harmoniously gentle process protects components and increases the quality and value of products. The maintenance-free, ready-to-install ACE rotary dampers are fi lled with an inert fl uid, usually silicone oil. The viscosity of the fl uid and the sizing of the throttling gap determine the damping torque. The FFD series is the only exception: These fl uid-free rotary dampers operate according to the principle of friction. The continuously rotating rotary dampers with the designations FRT, FRN, FFD, FDT and FDN are used in household and medical devices as well as in the automotive, electronics and furniture industries. with Partial Rotation Angle For controlled and gentle deceleration: The damping direction of this rotary damper, which is available with adjustable damping torque, can be right, left or two-sided rotation. They can be installed directly in the pivot point of a construction and achieve uniform, quiet movements, which increases quality and value and protects sensitive components. The products are maintenance-free, ready-to-install and fi lled with an inert fl uid, usually silicone oil. A rotor movement presses the fl uid from one chamber into the other. The damping torque is determined by the viscosity of the fl uid and the sizing of the throttling gap the throttle holes. During each reversal of movement, depending on the frame size a certain return damping torque develops. These solutions are used in the automotive sector, in many industrial applications, in the electronics and furniture industries as well as in medical devices. High protection of sensitive components Various designs for every application Maintenance-free and ready-to-install Partial Rotation Angle e.g. FYN-N e.g. FRT-E Rotor Cover Sealing Ring End Cap Rotor Sealing Ring

6 Product Families Overview Continuous rotation FRT-E Small and lightweight for finest braking Page 8 FRT-G Small and lightweight for finest braking Page 9 FRT-C and FRN-C Flexible and cost efficient use Page FRT-D and FRN-D Flexible and cost efficient use Page FRT-F/K and FRN-F/K For very long service life extension Page FFD Precise braking without oil Page 3 FDT The flat disc brake for two-sided damping Page 4 FDN The flat disc brake for one direction of rotation Page 5 Issue 8.6 Specifi cations subject to change

Product Families Overview 7 Partial rotation angle FYN-P Partial Rotation Angle Small diameter, large damping torques Page 6 FYN-N Partial Rotation Angle Small diameter, large braking torques Page 7 FYN-U Partial Rotation Angle Small, strong and very robust Page 8 FYN-S Partial Rotation Angle The flat damper for constant component protection Page 9 Partial rotation angle, adjustable FYT-H and FYN-H Partial Rotation Angle, Adjustable Specific adjustable, strong braking force Page 3 Issue 8.6 Specifi cations subject to change FYT-LA3 and FYN-LA3 Partial Rotation Angle, Adjustable Adjustable High Page 3

8 FRT-E Small and lightweight for finest braking The damping direction of the smallest ACE FRT-E rotary dampers with plastic body is rotating on both sides. They can brake directly in the pivot point or linear through a gear and gear rack. ACE rotary dampers are maintenance-free and ready-to-install. Construction size: Ø Rotational speed max.: 5 rpm Lifetime: 5, cycles ( cycle = 36 left-hand, 36 right-hand). Even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: C to +5 C Pressure angle: Material: Outer body, Shaft, Gear: Plastic Tooth: Involute gearing P.C.D.: 6 No. of teeth: Module:.6 Mounting information: No axial or radial forces may be induced via the shaft. On request: Special designs available on request. Toothed plastic racks (modules.5 to.) are available for the rotary dampers with pinions. Characteristics At 3 C ambient temperature.8.6.4. 3 5 3 4 5 rpm At rpm rotational speed,6,5,4,3,, 3 4 5 C 4 3 4 3..5.6 4 +/-.5 +/-.5 Ø 9 Ø7. Ø. 6 Ø.5 +/-.5 3.5 6 (5.5) Dims. in ( ) without gear Damping direction Gear Weight FRT-E-. +/-.5 bidirectional without.3 FRT-E-. +/-.7 bidirectional without.3 FRT-E-3.3 +/-.8 bidirectional without.3 FRT-E-4.4 +/-. bidirectional without.3 FRT-E--G. +/-.5 bidirectional with.4 FRT-E--G. +/-.7 bidirectional with.4 FRT-E-3-G.3 +/-.8 bidirectional with.4 FRT-E-4-G.4 +/-. bidirectional with.4 The indicated damping torque refers to a rotational speed of rpm and an ambient temperature of 3 C. Issue 8.6 Specifications subject to change

9 FRT-G Small and lightweight for finest braking The damping direction of the ACE FRT-G product family with plastic body is rotating on both sides. The small rotary dampers can brake directly in the pivot point or linear through a gear and gear rack. ACE rotary dampers are maintenance-free and ready-to-install. Construction size: Ø 5 Rotational speed max.: 5 rpm Lifetime: 5, cycles ( cycle = 36 left-hand, 36 right-hand). Even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: C to +5 C Pressure angle: Material: Outer body, Shaft, Gear: Plastic Tooth: Involute gearing P.C.D.: 7 No. of teeth: 4 Module:.5 Mounting information: No axial or radial forces may be induced via the shaft. On request: Special designs available on request. Toothed plastic racks (modules.5 to.) are available for the rotary dampers with pinions. Characteristics At 3 C ambient temperature.5..5 3 5 3 4 5 rpm At rpm rotational speed.4...8.6.4. 3 4 5 C..5 6 45 3 6 45 3.6 9 +/-.5.5 +/-.5 Ø 5 4 Ø8 Ø. 7 Ø 3.6 +/-.5 3.7. 6.6 (5.4) Dims. in ( ) without gear Issue 8.6 Specifications subject to change Damping direction Gear Weight FRT-G-. +/-.7 bidirectional without.6 FRT-G-3.3 +/-.8 bidirectional without.6 FRT-G-45.45 +/-. bidirectional without.6 FRT-G-6.6 +/-. bidirectional without.6 FRT-G-. +/-. bidirectional without.6 FRT-G--G. +/-.7 bidirectional with.8 FRT-G-3-G.3 +/-.8 bidirectional with.8 FRT-G-45-G.45 +/-. bidirectional with.8 FRT-G-6-G.6 +/-. bidirectional with.8 FRT-G--G. +/-. bidirectional with.8 The indicated damping torque refers to a rotational speed of rpm and an ambient temperature of 3 C.

FRT-C and FRN-C Flexible and cost efficient use The damping direction of the simple FRT-C and FRN-C is either right, left or two-sided rotation. These ACE rotary dampers with plastic body can decelerate directly in the pivot point or linear through a gear and gear rack. ACE rotary dampers are maintenance-free and readyto-install. Construction size: Ø 5 Rotational speed max.: 5 rpm Lifetime: 5, cycles ( cycle = 36 left-hand, 36 right-hand). Even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: C to +5 C Pressure angle: Material: Outer body, Gear: Plastic; Shaft: Plastic, steel Tooth: Involute gearing P.C.D.: 8.8 No. of teeth: Module:.8 Mounting information: No axial or radial forces may be induced via the shaft. On request: Special designs available on request. Toothed plastic racks (modules.5 to.) are available for the rotary dampers with pinions. Characteristics At 3 C ambient temperature 5 4 3 3 5 3 4 5 rpm At rpm rotational speed 5 4 3 3 4 5 C 3 3 3.5 +/-.5 Ø 5 7.5 Ø.4 3. 8 Ø 4 -.5.5 7 4 4.5 Damping direction Gear Weight FRT-C- +/-.6 bidirectional without. FRT-C-3 3 +/-.8 bidirectional without. FRT-C--G +/-.6 bidirectional with. FRT-C-3-G 3 +/-.8 bidirectional with. FRN-C-R +/-.6 right without. FRN-C-R3 3 +/-.8 right without.3 FRN-C-R-G +/-.6 right with. FRN-C-R3-G 3 +/-.8 right with.4 FRN-C-L +/-.6 left without. FRN-C-L3 3 +/-.8 left without.3 FRN-C-L-G +/-.6 left with. FRN-C-L3-G 3 +/-.8 left with.3 The indicated damping torque refers to a rotational speed of rpm and an ambient temperature of 3 C. Issue 8.6 Specifications subject to change

FRT-D and FRN-D Flexible and cost efficient use The damping direction of the ACE FRT-D and FRN-D rotary dampers with plastic body is either the right, left or two-sided rotation. They can decelerate directly in the pivot point or linear through a gear and gear rack. ACE rotary dampers are maintenance-free and ready-to-install. Construction size: Ø 5 Rotational speed max.: 5 rpm Lifetime: 5, cycles ( cycle = 36 left-hand, 36 right-hand). Even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: C to +5 C Pressure angle: Material: Outer body, Gear: Plastic; Shaft: Plastic, steel Tooth: Involute gearing (addendum modification coefficient: +.375) P.C.D.: No. of teeth: Module: Mounting information: No axial or radial forces may be induced via the shaft. On request: Special designs available on request. Toothed plastic racks (modules.5 to.) are available for the rotary dampers with pinions. Characteristics At 3 C ambient temperature 5 5 3 5 3 4 5 rpm At rpm rotational speed 5 5 3 4 5 C 4 4 +/-.5 5 Ø 5 5 5 5 5 Ø4.75 Ø 4. R5 Ø 5 -.5 9 5 Issue 8.6 Specifications subject to change Damping direction Gear Weight FRT-D- +/- bidirectional without.8 FRT-D-5 5 +/- 3 bidirectional without.8 FRT-D-5 5 +/- bidirectional without.8 FRT-D--G +/- bidirectional with.9 FRT-D-5-G 5 +/- 3 bidirectional with.9 FRT-D-5-G 5 +/- bidirectional with.9 FRN-D-R +/- right without. FRN-D-R5 5 +/- 3 right without. FRN-D-R5 5 +/- right without. FRN-D-R-G +/- right with. FRN-D-R5-G 5 +/- 3 right with. FRN-D-R5-G 5 +/- right with. FRN-D-L +/- left without. FRN-D-L5 5 +/- 3 left without. FRN-D-L5 5 +/- left without. FRN-D-L-G +/- left with. FRN-D-L5-G 5 +/- 3 left with. FRN-D-L5-G 5 +/- left with. The indicated damping torque refers to a rotational speed of rpm and an ambient temperature of 3 C.

FRT-F/K and FRN-F/K For very long service life extension The damping direction of FRT F/K and FRN-F/K is either the right, left or two-sided rotation. With a damping torque of up to 4, this product family can even handle heavy components. These ACE rotary dampers can decelerate directly in the pivot point or linear through a gear and gear rack. They are maintenance-free and ready-to-install. Construction size: Ø 4 Rotational speed max.: 5 rpm Lifetime: 5, cycles ( cycle = 36 left-hand, 36 right-hand). Even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: C to +5 C Material: Outer body: Plastic; Shaft: Steel Mounting information: No axial or radial forces may be induced via the shaft. On request: Special designs available on request. Characteristics At 3 C ambient temperature 6 5 4 3 43 33 3 3 5 3 4 5 rpm At rpm rotational speed 6 5 4 3 3 4 5 C 43 33 3 3 5 47 36 Ø 4 5 +/-.5 Ø3.5 Ø 5. Ø6 R5.5 -. 6 5 9.5 4.5 Damping direction Weight FRT-K-5 5 +/- bidirectional.8 FRT-K-3 +/- bidirectional.8 FRT-F-3 +/- 4 bidirectional. FRT-F-33 3 +/- 8 bidirectional.5 FRT-F-43 4 +/- bidirectional.5 FRN-K-R5 5 +/- right.57 FRN-K-R3 +/- right.57 FRN-F-R3 +/- 4 right.9 FRN-K-L5 5 +/- left.57 FRN-K-L3 +/- left.57 FRN-F-L3 +/- 4 left.9 The indicated damping torque refers to a rotational speed of rpm and an ambient temperature of 3 C. Issue 8.6 Specifications subject to change

3 FFD Precise braking without oil In comparison to other rotary dampers, the ACE FFD product family does not need any fluid to generate the damping torque, but rather works on the principle of friction. That means temperature or speed changes have virtually no influence on the damping torque. The FFD is available in two different body variants and two types of bearings. ACE rotary dampers are maintenance-free and ready-to-install. Construction size: Ø 5 to 3 Rotational speed max.: 3 rpm Lifetime: 3, cycles ( cycle = 36 left-hand, 36 right-hand). Even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: - C to +6 C Material: Outer body: Plastic Information to the shaft: Ø + / -.3 Hardness > HRC55, surface smoothness RZ<µm Mounting information: Turn the shaft in the opposite direction to the brake direction to avoid damaging the freewheel mount. No axial or radial forces may be induced via the shaft. On request: Special designs available on request. Ordering Example Friction Damper Body Mounting Style (flange = F, standard = S) Model (standard = S, high = W) Damping Direction (right = R, left = L) Damping Torque see chart Complete details required when ordering =. 5 =.5 3 =. 53 =.5 3 =. 53 =.5 33 = 3. Note dimension C. FFD-5-FS-L- Ø B Ø 3. F Flange Type E D C Ø A Ø B G Standard Type H Thickness 4 Ø A J I Model Type Prefix FS = Mounting Style with Flange, Model standard FW = Mounting Style with Flange, Model high SS = Mounting Style Standard, Model standard SW = Mounting Style Standard, Model high Combinations with W for higher damping torque. Issue 8.6 Specifications subject to change and Dimensions Damping direction Model A B C D E F G H I J Weight FFD-5SS./.5/. right or left SS 5 6 3 3 4 34 6. 6 4.4 FFD-8SS./.5/. right or left SS 8 8 3 3 44 36 4 8. 6 4.3 FFD-3SS./.5/./.5 right or left SS 3 3 3 46 38 6. 6 4.9 FFD-5FS./.5/. right or left FS 5 6 3 3 4 34 6. 6 4.4 FFD-8FS./.5/. right or left FS 8 8 3 3 44 36 4 8. 6 4.3 FFD-3FS./.5/./.5 right or left FS 3 3 3 46 38 6. 6 4.7 FFD-5SW./.5/. right or left SW 5 6 9 3 4 34 6. 4.4 FFD-8SW./.5/. right or left SW 8 8 9 3 44 36 4 8. 4.4 FFD-3SW.5/./.5/3. right or left SW 3 9 3 46 38 6. 4.9 FFD-5FW./.5/. right or left FW 5 6 9 3 4 34 6. 4.4 FFD-8FW./.5/. right or left FW 8 8 9 3 44 36 4 8. 4.3 FFD-3FW.5/./.5/3. right or left FW 3 9 3 46 38 6. 4.3 The indicated damping torque refers to a rotational speed of rpm and an ambient temperature of 3 C.

4 FDT The flat disc brake for two-sided damping The damping direction of the flat constructive ACE rotary damper FDT with robust steel body is two-sided rotation. It can brake directly in the pivot point of the square receptacle. ACE rotary dampers are maintenance-free and ready-to-install. Construction size: Ø 47 to 7 Rotational speed max.: 5 rpm Lifetime: 5, cycles ( cycle = 36 left-hand, 36 right-hand). Even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: - C to +5 C Material: Outer body: Steel; Output shaft sleeve: Nylon Mounting information: No axial or radial forces may be induced via the shaft. On request: Special designs available on request. Characteristics At 3 C ambient temperature 8 6 4 3 4 5 rpm At rpm rotational speed 8 6 4 3 4 5 C FDT-7 FDT-63 FDT-57 FDT-47 FDT-7 FDT-63 FDT-57 FDT-47 R C -. -. B A Ø F Ø E Ø J -, C Recoended Drive Shaft Size and Dimensions Ø D G H Damping direction A B FDT-47. +/-.3 bidirectional 65 56 8 4.5 47 4.8.6.3 4.5.5 FDT-57 4.7 +/-.5 bidirectional 79 68 5.5 57 5.4.6. 5.5 3.75 FDT-63 6.7 +/-.7 bidirectional 89 76.5 6.5 63 58.6.6.3 6.5 7.95 FDT-7 8.7 +/-.8 bidirectional 95 8.5 6.5 7 65.4.6.3 6.5 7. The indicated damping torque refers to a rotational speed of rpm and an ambient temperature of 3 C. C D E F G H R J Weight Issue 8.6 Specifications subject to change

5 FDN The flat disc brake for one direction of rotation The damping direction of the flat, strong FDN rotary dampers with steel body can be either right or left rotation. They can brake directly in the pivot point. ACE rotary dampers are maintenance-free and ready-to-install. Construction size: Ø 47 to 7 Rotational speed max.: 5 rpm Lifetime: 5, cycles ( cycle = 36 left-hand, 36 right-hand). Even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: - C to +5 C Material: Outer body: Steel Information to the shaft: FDN-47: Ø 6 + / -.3 FDN-57 to FDN-7: Ø + / -.3 Hardness > HRC55, surface smoothness R Z <µm Mounting information: Turn the shaft in the opposite direction to the brake direction to avoid damaging the freewheel mount. No axial or radial forces may be induced via the shaft. On request: Special designs available on request. Characteristics At 3 C ambient temperature 4 8 6 4 3 4 5 6 rpm At rpm rotational speed 4 8 6 4-3 - - 3 4 5 6 C FDN-7 FDN-63 FDN-57 FDN-47 FDN-7 FDN-63 FDN-57 FDN-47 R B A Ø F Ø E Ø C Ø D G H Issue 8.6 Specifications subject to change and Dimensions Damping direction A B C D E F G H R Weight FDN-47-R. +/-.3 right 65 56 6 4.5 47 4.8.6.3 4.5.55 FDN-57-R 5.5 +/-.3 right 79 68 5.5 57 5.4.6 4 5.5.95 FDN-63-R 8.5 +/-.8 right 89 76 6.5 63 58.6.6 3.9 6.5.5 FDN-7-R. +/-. right 95 8 6.5 7 65.4.6 3 6.5.35 FDN-47-L. +/-.3 left 65 56 6 4.5 47 4.8.6.3 4.5,55 FDN-57-L 5.5 +/-.3 left 79 68 5.5 57 5.4.6 4 5.5.95 FDN-63-L 8.5 +/-.8 left 89 76 6.5 63 58.6.6 3.9 6.5.5 FDN-7-L. +/-. left 95 8 6.5 7 65.4.6 3 6.5.35 The indicated damping torque refers to a rotational speed of rpm and an ambient temperature of 3 C.

6 Partial Rotation Angle FYN-P Small diameter, large damping torques The damping direction of the rotary damper FYN-P can be either right or left rotation. The dampers can be directly mounted in the pivot point. During each reverse movement of the unilateral decelerating versions there is a certain return damping torque that depends on the size. Differentiation of the damping direction through the coloured shaft. ACE rotary dampers are maintenance-free and ready-to-install. Construction size: Ø 8.5 Lifetime: 5, cycles, even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: -5 C to +5 C Material: Outer body, Shaft: Plastic Rotation angle max.: 5 Note: Damping direction: Right hand damping = damping action in clockwise direction (when looking onto the output shaft or output shaft sleeve, depending on the damper type). A play of approx. 5 can occur at the beginning of movement. Mounting information: No axial or radial forces may be induced via the shaft. On request: Special designs available on request. Rotation 5 Ø 7.5 Ø 8.5 Ø white shaft: left-hand damping black shaft: right-hand damping 8 4 5 4 8 4 Return Damping Torque Damping direction Weight FYN-P-R3 3 right. FYN-P-R53 5 5 right. FYN-P-R83 8 8 right. FYN-P-L3 3 left. FYN-P-L53 5 5 left. FYN-P-L83 8 8 left. 8 Issue 8.6 Specifications subject to change

Partial Rotation Angle 7 FYN-N Small diameter, large damping torques The damping direction of the rotary damper FYN-N can be either right or left rotation. The dampers can be directly mounted in the pivot point. During each reverse movement of the unilateral decelerating versions there is a certain return damping torque that depends on the size. Differentiation of the damping direction through coloured end cap. ACE rotary dampers are maintenance-free and ready-to-install. Construction size: Ø Lifetime: 5, cycles, even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: -5 C to +5 C Material: Outer body, Shaft: Plastic Rotation angle max.: Note: Damping direction: Right hand damping = damping action in clockwise direction (when looking onto the output shaft or output shaft sleeve, depending on the damper type). A play of approx. 5 can occur at the beginning of movement. Mounting information: No axial or radial forces may be induced via the shaft. On request: Special designs available on request. Rotation Ø6-. Ø Ø -. white end cap: left-hand damping black end cap: right-hand damping. 8-. 3 6 4 8-. Issue 8.6 Specifications subject to change Return Damping Torque Damping direction Weight FYN-N-R3 right. FYN-N-R3 4 right. FYN-N-R53 5 4 right. FYN-N-R33 3 8 right. FYN-N-L3 left. FYN-N-L3 4 left. FYN-N-L53 5 4 left. FYN-N-L33 3 8 left.

8 Partial Rotation Angle FYN-U Small, strong and very robust The damping direction of the rotary damper FYN-U can be either right or left rotation. The dampers can be directly mounted in the pivot point. The body is made of especially robust die-cast zinc. During each reverse movement of the unilateral decelerating versions there is a certain return damping torque that depends on the size. ACE rotary dampers are maintenance-free and ready-to-install. Construction size: Ø 6 Lifetime: 5, cycles, even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: -5 C to +5 C Material: Outer body, Shaft: Zinc die-cast Rotation angle max.: 5 Note: Damping direction: Right hand damping = damping action in clockwise direction (when looking onto the output shaft or output shaft sleeve, depending on the damper type). A play of approx. 5 can occur at the beginning of movement. Mounting information: No axial or radial forces may be induced via the shaft. On request: Special designs available on request. Rotation 5 Ø 3 Ø 6 Ø 6 5 34 8 Return Damping Torque Damping direction Weight FYN-U-R3 4 right.4 FYN-U-R53 5 4 right.4 FYN-U-R33 3 8 right.4 FYN-U-L3 4 left.4 FYN-U-L53 5 4 left.4 FYN-U-L33 3 8 left.4 8 Issue 8.6 Specifications subject to change

Partial Rotation Angle 9 FYN-S The flat damper for constant component protection The self-compensating FYN-S rotary damper with zinc die-cast body provides a constant sequence of movement for different masses. The damping direction can be either right or left rotation. During each reverse movement of the unilateral decelerating versions there is a certain return damping torque that depends on the size. ACE rotary dampers are maintenance-free and ready-to-install. Construction size: Ø 6 Lifetime: 5, cycles, even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: -5 C to +5 C Material: Outer body: Zinc die-cast; Output shaft sleeve: Plastic Rotation angle max.: 3 Note: Damping direction: Right hand damping = damping action in clockwise direction (when looking onto the output shaft or output shaft sleeve, depending on the damper type). A play of approx. 5 can occur at the beginning of movement. Mounting information: No axial or radial forces may be induced via the shaft. On request: Special designs available on request..5+/-.5 5.5 5 R 6.5 -. -. Issue 8.6 Specifications subject to change 6+/- 5 3.5 Ø 5.5 7 +/-. 83 -. Ø6 Recoended Drive Shaft Size Return Damping Torque Damping direction Weight FYN-S-R4 5 -.5 right. FYN-S-L4 5 -.5 left.

3 Partial Rotation Angle, Adjustable FYT-H and FYN-H Specifically adjustable, strong braking force The damping direction of the adjustable FYT-H and FYT-H can be right, left or two-sided rotation. During each reverse movement of the unilateral decelerating versions there is a certain return damping torque that depends on the size. The brakes have a particularly robust zinc die-cast body and shafts made of steel. ACE rotary dampers are maintenance-free and ready-to-install. Construction size: Ø 45 Lifetime: 5, cycles, even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: -5 C to +5 C Material: Outer body: Zinc die-cast; Shaft: Steel Rotation angle max.: 5 Maximum side load: 5 N Note: Damping direction: Right hand damping = damping action in clockwise direction (when looking onto the output shaft or output shaft sleeve, depending on the damper type). A play of approx. 5 can occur at the beginning of movement. On request: Special designs available on request. 5 Rotation Adjusting Screw 6 M5 Ø 4 Ø 45 Ø 8 P 6 +/-.5 8 56 66 Keyed output shaft shown in mid-travel position 5 3 Return Damping Torque Damping direction Weight FYT-H -.5 bidirectional.35 FYN-H-R -.5 right.35 FYN-H-L -.5 left.35 Issue 8.6 Specifications subject to change

Partial Rotation Angle, Adjustable 3 FYT-LA3 and FYN-LA3 Adjustable high performance The damping direction of this adjustable high-performance rotary damper can be right, left or two-sided rotation. During each reverse movement of the unilateral decelerating versions there is a certain return damping torque that depends on the size. The brakes have a particularly robust zinc die-cast body and shafts made of steel. ACE rotary dampers are maintenance-free and ready-to-install. Construction size: Ø 8 Lifetime: 5, cycles, even after this time, the dampers still produce over approx. 8 % of their original damping moment. The service life may be significantly higher or lower, depending on the application. Operating temperature range: -5 C to +5 C Material: Outer body: Zinc die-cast; Shaft: Steel Rotation angle max.: Maximum side load: N Note: Damping direction: Right hand damping = damping action in clockwise direction (when looking onto the output shaft or output shaft sleeve, depending on the damper type). A play of approx. 5 can occur at the beginning of movement. On request: Special designs available on request. Rotation 8 Adjusting Screw Ø 8 3 Ø 5 P Ø 7 Issue 8.6 Specifications subject to change.5-.5 Ø 6.5 7 6 96 Keyed output shaft shown in mid-travel position 48 78 5 Return Damping Torque Damping direction Weight FYT-LA3 4-4 4 bidirectional.7 FYN-LA3-R 4-4 right.75 FYN-LA3-L 4-4 left.75

3 Calculations and Accessories Calculation Example Damping of a Lid To select an appropriate rotary damper for the adjacent calculation example, the length and the weight or the centre of gravity of the fl ap have to be known. After determining the value of the max. torque at an unfavourable angle of the fl ap, select the appropriate damper. Calculation Steps. Calculate max. torque damper will be exposed to (with example shown on the left max. torque is at α = ).. Decide upon rotation speed desired. 3. Choose a rotary damper that can handle the torque calculated above. 4. With the aid of the damper performance curves, check if the r.p.m. given at your torque corresponds to the desired closing speed of the lid. 5. If the r.p.m. is too high choose a damper with a higher torque rating. If the r.p.m. is too low choose a damper with a lower torque rating. Closing Torque M = L / m cos α (L / = centre of gravity) m Mass of a lid [] ( = 9.8 N) L Length of lid from pivot [cm] n Rotation speed [r.p.m.] Special Accessories Toothed Racks for with Gear Rotary dampers with gears are available in four standard modules which can be optionally supplied with plastic toothed racks as accessories. M.5, M.6, M.8, M. Toothed Rack M.8P Toothed Rack Ø 4,5 C,3 C A B A B Delivery Notes Delivery form: Toothed plastic racks with modules.5 to. availables ex stock On request: Toothed metal racks Dimensions A B C Model Type M.5 5 4 4.5 rigid, milled M.6 5 4 6 rigid, milled M.8 5 6 8 rigid, milled M.8P 7 8 4. fl exible, milled M. 5 9 9 rigid, milled M. 5 rigid, milled Mounting Information The rotary axis, square receptacles or free-wheel receptacles are not designed for lateral loads. An external guide or bearing support is fundamentally recoended. Side loading End loading Angular offset Misalignment Issue 8.6 Specifi cations subject to change

33 Application Examples FDT Finger protection when cutting bread To exclude the possibility of injury when using bread slicing machines on self-service counters, the automatic bread slicing process does not start until the fl ap of the modern machine is closed. To simplify the operation and to thereby increase acceptance of the self-slicing principle among users, two-way rotary dampers of the type FDT-57 ensure smooth opening and closing of the door. Even when rotary dampers must act only in one direction, ACE has appropriate variants readily available. Protective fl aps secured with rotary dampers: the simple operation of bread slicing machines can then be easily managed by hand Daub Bakery Machinery BV, 55 AB Goirle, Netherlands FDN-R Invisible protection for cooker hoods For ergonomic handling, modern cooker hoods can be driven by a motor into an up position and then down again. When driven downwards, an AC load can result in a total loss through current being fed back into the voltage source. One of the tasks of the ACE rotary dampers type FDN-63-R is to prevent this. The modern machine elements are also built to provide protection against motor failure. Sliding the hood down too quickly could lead to further costly damage to the hood and the ceiling console and even cause personal injury. Issue 8.6 Specifi cations subject to change Rotary dampers in high-end cooker hoods safeguard the protection of drive units and protect chefs, even during power failures berbel Ablufttechnik GmbH, 4843 Rheine, Germany