Built-In Freewheels TYPE

Transcription

1 AS TYPE T ype AS is a roller type freewheel non-bearing supported. Bearings are required to support axial and r adial loads. Lubrication and sealing must also be provided by the installation. Nominal outside dimensions are the same as series.. ball bearings. A typical arrangement is to install this type alongside a series bearing within the same location tolerances, as shown on the following page. The inner race is keyed to the shaft (except mm bore). The outer race has a positive R tolerance to give a press fit in a H housing. The outer housing must be strong enough to not expand after assembly. This design can accept an axial misalignment of inner and outer race of ± S/.... P--SC-A /

2 AS AS Type Size Overrunning speeds Weight Drag torque T KN ) n imax ) n amax ) D r D L s e f T R d H [Nm] [min - ] [min - ] [kg] [Ncm], , 0, 0, 0, 0,0 0,, 0 00, 0, 0, 0,0 0,, 00 0,, 0, 0, 0,0 0, 0 00, 0, 0, 0,0 0, 0 0, 0, 0, 0,0 0, , 0, 0, 0,, 0 0,, 0, 0, 0,, AS (NSS) 0 0, 0, 0,, 00, 0, 0,, , 0, 0, 00 0,, 0, 0 0,, 0, 00 0,, 0, ,,, 0, ,,,, NOTES AS without keyway. ØD = -0-0,00 AS- keyway to DIN., other sizes to DIN. ) T max = T KN» Refer to Selection page to MOUNTING EXAMPLE ) Inner race overruns ) Outer race overruns Mounting dimensions are identical to ball bearings series.» Refer to mounting and maintenance instructions page to P--SC-A /...

3 ASNU TYPE T ype ASNU is a roller type freewheel non-bearing supported. Bearings are required to support axial and radial loads. Lubrication and sealing must also be provided by the installation. Nominal outer diameter is the same as a series.. ball bearing. A typical arrangement is to install this type alongside a bearing within the same location tolerances, as shown on the following page. The inner race is keyed to the shaft. The outer race has positive n tolerance, to give a press fit in a H housing. Additional side notches in the outer race provide for positive torque transmission. If the housing is to K tolerance, use of the notches is not necessary, but the housing must be strong enough to not expand after assembly. This design can accept an axial misalignment of inner and outer race of ± S/.... P--SC-A /

4 ASNU ASNU Type ASNU Overrunning Speeds Weight Drag Torque [kg] [Ncm] 0, 0, 0,0, dh TKN) nimax) namax) Dn D L b t s e f [Nm] 0 000,, TR 0 000,, 0, 0, 0,0, 0 00,, 0, 0, 0,, 0 0,,, 0, 0,, 0 0,,, 0, 0,, 00,,, 0, 0,, 0 0 0,,, 0, ,,, 0, 0 0,,, 0, ,,,, 0 0 0,,,, 0 0 0,,,,, 0 00,,,,, ,,,,,0 00 0,0,,, 0 0 0,,,, ,,, ,,, ,, 00 NOTES ASNU-, ASNU0 keyway to DIN., other sizes to DIN. ) Tmax = TKN» Refer to Selection page to MOUNTING EXAMPLE ) Inner race overruns ) Outer race overruns» Refer to mounting and maintenance instructions page to P--SC-A /...

5 AE TYPE T ype AE is a roller type freewheel non-bearing supported. Bearings are required to support axial and radial loads. Lubrication and sealing must also be provided by the installation. Nominal outside diameter is a standard ball bearing dimension. A typical arrangement is to install this type beside a bearing with the same housing diameter tolerance as shown on the following page. The inner race is keyed to the shaft. The outer race has a h tolerance and should be fitted in a housing with a K tolerance. Additional side notches provide for positive torque transmission. If the housing tolerance is to R, use of the notches is not necessary, but the housing must be strong enough to not expand after assembly. This design can accept an axial misalignment of inner and outer race of ± S/.... P--SC-A /

6 AE AE Type AE Size Overrunning speeds Weight Drag torque [kg] [Ncm] 0, 0, dh TKN) nimax) namax) Dh D D L s f e b t [Nm] 0 000, 0, 0, TR 00, 0,,, 0,, , 0,,, 0,, 00 0,, 0, ,,, ,,, ,,,, ,,,, 0,,,, 0 00,,, ,,, ,,,, NOTES MOUNTING EXAMPLE ) Tmax = TKN» Refer to Selection page to ) Inner race overruns ) Outer race overruns Keyway to DIN.» Refer to mounting and maintenance instructions page to P--SC-A /...

7 AA TYPE T ype AA is a roller type freewheel non-bearing supported. Bearings are required to support axial and radial loads. Lubrication and sealing must also be provided by the installation. Standard lubrication is oil. A typical installation is shown on the following page. The inner race is keyed to the shaft. The fit for centering of the outer race must be to H tolerance. Connection of the outer race is via through bolts to grade. or better. This design can accept an axial misalignment of inner and outer race of ± S/.... P--SC-A /

8 AA AA Type AA Size Overrunning speeds) Number dh TKN) nimax) namax) Dh D D D [Nm] 0 0 Z Weight Drag torque [kg] [Ncm], 0, 0, O L f s, 0, TR 00, 0,, 0,, , 0,, 0,0, 000,,, ,,,00 0 0,,, ,,, 0 0,,,00 0 0,,,00 0,, ,, 0 0 0,,, ,,, 0 00,, ,, ,, , , , 0 NOTES MOUNTING EXAMPLE ) Tmax = TKN» Refer to Selection page to ) Inner race overruns ) Outer race overruns Keyway to DIN.» Refer to mounting and maintenance instructions page to P--SC-A /...

9 NF TYPE T ype NF is a roller type freewheel non-bearing supported. Bearings are required to support axial and radial loads. Lubrication and sealing must also be provided by the installation. Standard lubrication is oil. Nominal outside diameter is a standard ball bearing dimension. A typical arrangement is to install this type alongside a bearing with the same housing tolerances, as shown on the following page. The inner race is keyed to the shaft. The outer race has a positive n tolerance to give a press fit in a H housing. A dditional side notches provide for positive torque transmission. If the housing tolerance is to K, use of the notches is not necessary, but the housing must be strong enough to not expand after assembly.... P--SC-A /

10 NF NF Type Size Overrunning speeds Weight dh TKN) nimax) namax) Dn D D L t bh r r [Nm] [kg] ,0, 0, ,0, 0, 00 00,,, 0, 00 00,,0,0 0, ,,0, NF ,,,0, 0 0 0,,, 0 0 0,0,, ,0,, 0 0 0,,,0, ,,0, ,,,, 0 0 0,,, ,0,,0 0 00,,0,0, ,,0,0, ,0,0,0 00 0,0,0,0 NOTES MOUNTING EXAMPLE ) Tmax = TKN» Refer to Selection page to ) Inner race overruns ) Outer race overruns Keyway to DIN.» Refer to mounting and maintenance instructions page to P--SC-A /...

11 S0 TYPE T ype S0 is a non bearing supported sprag type freewheel. The sprags run directly on the shaft provided by the user. Bearings are required to support axial and radial loads. Lubrication and sealing must also be provided by the installation. A typical arrangement is to install this type alongside a bearing as shown on the following page. The housing bore to receive the outer race will be machined with a H tolerance. A key will transmit the torque. The shaft on which the sprags run must have a surface hardness of HRc 0 to for a finished depth of 0, mm minimum. Core hardness should be HRc to. Surface roughness must not exceed CLA. M aximum shaft taper 0,0 mm per 0 mm length. Concentricity between shaft and housing bore should be maintained within TIR 0,0 mm. The preferred lubrication is oil. The Stieber design allows the use of most of the common lubricants used in power transmission including gear oils with EP additives. When necessary grease lubrication is also possible.... P--SC-A /

12 S0 S0 Type Size Overrunning speeds d+0 D L b t [Nm], ,0, -0,0-0,0-0,0-0,0 TKN nmax ) namax Drag torque ) ) Bearing series Weight Tr [Ncm] [kg] 0,0 0, 0,0 0, 0,0 0, 0,0 0,0-0,0 0,0 0,0 0-0,0, 0,0 0, -0,0, 0,0 0, -0,0, 0,0,00-0,0, ,0, ,0 S0, 0 0-0,0, ,0, ,0, ,0, ,0 NOTES MOUNTING EXAMPLE ) Tmax = TKN» Refer to Selection page to ) Inner race overruns ) Outer race overruns» Refer to mounting and maintenance instructions page to P--SC-A /...

13 DC TYPE T ype DC is a sprag type freewheel cage without inner or outer races. It must be installed in a design providing races, bearing support for axial and radial loads, lubrication and sealing. The DC type version-n accepts all types of lubricants currently used in the power transmission equipement. The sprag space tolerance must not be exceeded. Inner and outer races must both have a minimum plain width e, without any recess, to ensure the freewheel functions correctly as shown on following pages. Alternatively, races can be made in case hardened steel shafts, or housings, to the specification below. Surface hardness of the finished part should be HRC 0 to, for a depth of 0, mm minimum. Core hardness to be HRC to. Surface roughness not to exceed CLA. Maximum taper between races: 0,00 mm for mm width.... P--SC-A /

14 DC DC Overrunning speeds Size DCG-N Sprag space + 0,00-0,00 ± 0,0 Number of clips Number of sprags Weight 0,0 TKN) nimax) namax) emin Ødmin Øbmax [Nm] 00 0,,, ±0,0,0 0 Øa Øc [kg] DC-N 0 0,,, ±0,0, 0,0 DC-N 0 0,,000, ±0,0, 0,00 DC(C)-N ,0,, ±0,0, 0,00 DCA-N 000 0,0,, ±0,0,0 0,0 DC(C)-N 00,,, ±0,0, 0,0 DCA-N 0 0,0,, ±0,0,0 0,0 DC(C)-N 0 0,,, ±0,0, 0,0 DCA-N 00,,, ±0,0,0 0, DCA(C)-N 00,,, ±0,0,0 0, DCB(C)-N 00,,, ±0,0,0 0, DCC(C)-N 00,,, ±0,0, 0,0 DCA-N 0 0 0,0,, ±0,0,0 0, DCB-N , 0,000, ±0,0,0 0, DC(C)-N 00,,, ±0,0, 0, DCB-N 00,,, ±0,0,0 0, DCB(C)-N 00,,, ±0,0,0 0, DCC(C)-N 0 00,,, ±0,0, 0, DCC-N 0, 0,000, ±0,0, 0,0 DCA-N 0 0 0,,, ±0,0,0 0, DCA(C)*-N 0 0,**,, ±0,0,0 0 0, DCC*-N ,**,000, ±0,0, 0 0 0,00 DCC(C) 0 0,,0,0 ±0,, 0 0,00 NOTES MOUNTING EXAMPLES ) Tmax = TKN» Refer to Selection page to ) Inner race overruns ) Outer race overruns *) The inner cage centering flange is on the opposite side **) Extension of tolerance to ± 0,0 permissible Other dimensions on request» Refer to mounting and maintenance instructions page to P--SC-A /...

15 DC-RACES TYPE D C races are offered for use with the DC freewheel cages shown on the previous pages. The cage and race assembly, makes a non-bearing supported freewheel. Bearing support for axial and radial loads must be provided, along with lubrication and sealing. The sprag space tolerance must not be exceeded when all bearing clearances and mounting tolerances are considered, (» see table page ). Taper between races should be below 0,00 mm for mm width. Outer races type A and B should be pressed into housings that will not deform after assembly. Please contact our technical department if you need to transmit maximum freewheel torque capacity with A and G type. Key stresses may have to be checked.... P--SC-A /

16 DC-RACES OUTER RACES INNER RACES ) Keyway to DIN. Size Number of holes ø DC A,, DC B, DC C, DC G-,0 DC G-,0 DC G-,0 DC H-,0 DC H-,0 DC H- d H L G L H L J D j T D i + 0,00-0,00 L S An b P t S Bs S Cg DL ±0, D a ± 0,0,0 DC J- 0,0 DC J- 0,0 DC J- 0,0 DC A, DC B, DC C, DC G-, DC G-, DC G-, DC H- 0, DC H- 0, DC H- 0, DC J- 0, DC J- 0, DC J- 0, DC A,, DC B, DC C 0, DC G-0 0, DC G-, DC G-0 0, DC H-0 0, DC H-, DC H-0 0, DC J-0 0, DC J-, DC J-0 0, DC A,, DC B, DC C 0, DC G-, DC G-0 0, DC G-, DC H- 0, DC H-0 0 0, DC H- 0, DC J- 0 0, DC J , Number of holes ø DC A DC A DC A (c) DC (c) DC B DC B (c) DC A (c) P--SC-A /...

17 NFR TYPE T ype NFR is a bearing supported roller type freewheel without any sealing. Lubrication and sealing must be provided by the installation. Standard lubrication is oil. Size to units use steel on steel bearing support from the inner race. Above size, two.. series ball bearings are used, giving a higher overrunning speed capacity. A typical arrangement is shown overleaf. The inner race is keyed to the shaft. The outer race has a positive n tolerance to give a press fit in a housing to H.Additional side notches provide for positive torque transmission.the housing must be strong enough to not expand after assembly.... P--SC-A /

18 NFR NFR -* Type Size d NFR (ANR-ANG) NFR -** H Overrunning speeds Bearing TKN ) nimax ) namax Weight Dn D D L I t r r [kg] *, 0, 00 *, 0, 0 *,,, 0, ) [Nm] b H 0 0 *, 0, ** ,,, ** 0,,, 00 ** 0 0 0,,,, **,,, ** 0 0,,, ** 0 0,,,, 0 00 ** 0,,, ** 0,,,, ** 0,,,, ** 0,,0 0 ** 0 0,,, ** 0,,, 0 00 ** 0,,0 NOTES MOUNTING EXAMPLE ) Tmax = TKN» Refer to Selection page to ) Inner race overruns ) Outer race overruns Keyway to DIN. *) With plain bearing steel on steel **) With ball bearings series.» Refer to mounting and maintenance instructions page to P--SC-A /...