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US Series Freewheel |
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Performance： The US Series freewheels are not self-centering. It is therefore required to place one or two bearings next tothe freewheel so that the outer race can rotate centrallyto the inner race. US freewheels have ball bearings with the same dimensions as the 62.. Series. The torque forces are transmitted from the shaft to the inner race by means of a key and from the outer race to the seating by means of an interference fit on the r6 tolerance of the external diameter. Shaft tolerance must be either h6 or j7; the tolerances for the seating must be either H7 or J6. Before being put onto service, the freewheels must be lubricated with suitable lubricants following the instructions given on page 12. Oil lubrication is essential when a high number of rotations in neutral is reached. |
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USNU Series Freewheels |
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Performance： The USNU Series freewheels are not self-centering. It istherefore necessary to place one or two bearings next to the freewheel so that the outer race can rotate centrally to the inner race. USNU freewheels have ball bearings with the same dimensions as the 63.. series. The torque forces are transmitted from the shaft to the inner race by means of a key and from the outer race to the seating by means of front pullers or by means of an interference fit if the seating tolerance is made a K6. Shaft tolerance must be either h6 or j7; the tolerances for the seating must be either H7 or F7. When front pullers are not used, the seating tolerance should be K6. Before being put onto service, the freewheels must be lubricated with suitable lubricants following the instructions given on page 12. Oil lubrication is essential when a high number of rotations in neutral is reached. |
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UF Series Freewheels |
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Performance： The UF Series freewheels are not self- centering. It is therefore necessary to place one or two bearings next to the freewheel so that the outer race can rotate centrally to the inner race. The torque forces are transmitted from the shaft to the inner race by means of a key and from the outer race to the seating by means of front pullers. Shaft tolerance must be either h6 or j6; the tolerances for the seating must be either H7 or G7. When front pullers are not used, the seating tolerance should be K6. Before being put onto service, the freewheels must be lubricated with suitable lubricants following the instructions given on page 12. Oil lubrication is essential when a high number of rotations in neutral is reached. |
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GF Series Freewheels |
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Performance： The GF Series freewheels are self centering. From size 8 to size 20, centering is steel on steel, while from size 25 to 130, centering is ensured by 2 160.. series bearings. Torque forces are transmitted from the shaft to the inner race by means of a keyway and from the outer race to the seat by means of front pullers. Shaft tolerances must be either h6 or j6, seating tolerances must be H7 or G7. If no front pullers are used, the seating tolerance becomes K6. Before being put onto service, the freewheels must be lubricated with suitable lubricants following the instructions given on page 12. Oil lubrication is essential when a high number of rotations in neutral is reached. |
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GV Series Freewheels |
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Performance： GV Series freewheels are with rollers, centering between the inner race and outer race is carried out by means of bushes. The torque forces are transmitted from the shaft to the inner race by means of a key. Shaft tolerance must be h6. When the freewheel is used as a non return device, the lever fixed to the outer race must be sandwiched between two brackets; otherwise a pin must be inserted in the looped hole. When locked to the frame of a machine, it stops the freewheel rotating. If the freewheel is used as an intermittent feed, the lever must be attached lengthways using the hole for a pushrod or similar. In any case, to avoid overloading the bushes, the lever must be given a certain amount of clearance to allow for the axial movement. The freewheel is supplied already greased. |
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GVG Series Freewheels |
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Performance： GVG series freewheels are with sprags cages, centering between the inner race and outer race is carried out by means of bushes. The torque forces are transmitted from the shaft to the inner race by means of a key. Shaft tolerance must be h6. When the freewheel is used as a non return device, the lever fixed to the outer race must be sandwiched between two brackets; otherwise a pin must be inserted in the looped hole. When locked to the frame of a machine, it stops the freewheel rotating. If the freewheel is used as an intermittent feed, the lever must be attached lengthways using the hole for a pushrod or similar. In any case, to avoid overloading the bushes, the lever must be given a certain amount of clearance to allow for the axial movement. The freewheel is supplied already greased. |
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GL Series Freewheels |
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Performance： GL type freewheels have 160.. Series ball bearings that are used to center the inner race with the outer race. The torque forces are transmitted from the shaft to the inner race by means of the key and from the outer race to the external area by means of screws. Shaft tolerances must be h6 or j6 and outer race key tolerances H7. Either grease or oil lubrication must be applied to the freewheels before operation, following instructions given on page 12. Each freewheel is supplied with two paper gaskets that must be inserted between the outer race and the flanges. If they are not used, the freewheel could be badly damaged. |
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GL...F2-D2(D3) Series Freewheels |
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Performance： The GL ... F2 – D2 (D3) Series features fits between the GL freewheel, the F2 fixing flange and the D2 or D3 cover flange. Normally the flanged freewheel is fitted by the customer in the required direction of rotation, using the paper gaskets and screws supplied (running without the gaskets, the freewheel can be seriously damaged). Shaft tolerances must be h6 or j6 and outer race key tolerances must be H7. The torque forces are transmitted from the shaft to the inner race by means of a key and from the outer race to the pulled part by means of screws. Either grease or oil lubrication must be applied to the freewheels before operation, following instructions given on page 12. If a D3 cover is used, a gasket must be fitted to the inner race facing towards the shaft to avoid loss of lubricant through the keyway. |
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GL...F4-D2 Series Freewheel |
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Performance： The GL ... F4 – D2 Series features fits between the GL freewheel, the F2 fixing flange and the D2 cover flange. Normally the flanged freewheel is fitted by the customer in the required direction of rotation by using the paper gaskets and screws supplied (without the gaskets, the freewheel can be badly damaged). Shaft tolerances must be h6 or j6 and the tolerances of the driven part must be either D6 or H6. Torque forces are transmitted from the shaft to the inner race by means of a key and from the outer race to the driven part by means of screws. The driven part (pulley, gear etc.) is centered on the protrusion D6h7 of flange F4. Either grease or oil lubrication must be applied to the freewheels before operation, following instructions given on page 12. |
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GL...F5-D2(D3) Series Freewheel |
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Performance： The GL ... F5 – D2 (D3) Series features fits between the GL freewheel, the F5 fixing flange and the D2 or D3 cover flange. Normally the flanged freewheel is fitted by the customer in the required direction of rotation by using the paper gaskets and screws supplied (without the gaskets, the freewheel can be seriously damaged). Shaft tolerances must be either h6 or j6. The rotation of the outer race is stopped by flange F5 that includes a stop pin and therefore requires a suitable hole to be drilled in the frame to support the pin; otherwise a strut or tie rod must be fitted. In order to avoid damage to the freewheel and the bearings, both the free axial and radial movement of the pin inside the seating must be checked (clearance: 1% of pin diameter). Either grease or oil lubrication must be applied to the freewheels before operation, following instructions given on page 12. |
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GLP...F7-D7 Series Freewheel |
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Performance： The GLP ... F7 – D7 Series features fits between the GLP freewheel (GL with a keyway found on the outer race), the F7 fixing flange and the D7 cover flange. Normally the flanged freewheel is fitted by the customer in the required direction of rotation by using the paper gaskets and screws supplied (without the gaskets, the freewheel can be badly damaged). Shaft tolerances must be either h6 or j6 and the outer race key tolerance H7. The torque forces are transmitted from the shaft to the inner race and from the outer race to the attached part by means of keys. Either grease or oil lubrication must be applied to the freewheels before operation following instructions given on page 12. |
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GL...TR Series Freewheel |
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Performance： The GL ... TR Series features fits between the GL freewheel, the D2 cover flange and the TRASCO flexible joint with a precision fit. The flanged freewheel and the joint are normally fitted by the client in the required direction of rotation by using the gaskets and screws supplied. Shaft tolerances must be h6 or j6. The flexible joint is used to absorb vibrations and compensate axial movements or angle errors without causing excessive loading on the bearings. Either grease or oil lubrication must be applied to the freewheel before operation, following instructions given on page 12. |
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GLG Series Freewheels |
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Performance： The GLG Series freewheels are particularly suitable for applications requiring long operation times in neutral at high speeds. These have the same bodies as the GL series but a cage of the GP series is mounted inside which makes it possible for the bodies to detach when running in neutral to reduce wear. Flanges are from the GL series, see pages 32 to 37 for dimensions. Models with holes 70 and 80 are produced by modifying only the internal ring of the GLG60/GL2G60, for which the same kind of flanges are mounted. The torque forces are transmitted from the shaft to the inner race by means of a key and from the outer race to the external area by means of screws. Shaft tolerances must be h6, whilst tolerances for the driven part must be H7. Grease lubrication with a labyrinth seal allows a high reduction of heat due to oil movement and friction between sealing rings. Each freewheel is supplied with paper gaskets (without paper gaskets, the freewheel can be seriously damaged). |
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GO Series Freewheels |
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Performance： The GO type freewheels have contacting parts and are self centering on ball bearings. They have an oil lubricated watertight seal. By adding the suffix GR (GO – GR), they are supplied already greased. By adding the suffix GRL (GO – GRL), they are supplied with a labyrinth seal and already greased. Shaft tolerance must be h6. |
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GM Series Freewheels |
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Performance： The GM Series.... is a cage with contact elements running on a metric sized freewheel race. The smaller dimensions and the high transmission torque offer some interesting technical and cost-saving solutions. Fitting multiple cages side-by-side increases torques. It is necessary to place one or two bearings next to the freewheel so that the outer race can rotate centrally to the inner race. When the sliding race is machined in the seats or on the shafts, the following specifications must be adhered to: 1) 60/62 HRC surface hardness 2) 1 mm minimum depth of tempering after grinding 3) ensure the concentric rotation of the races 4) lubrication suitable for the application. For further information, please contact our Technical Department. |
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GP Series Freewheels |
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Performance： The GP Series... is a cage with contact elements running as freewheel on races primarily measured in inches. The smaller dimensions and the high transmission torque offer some interesting technical and cost-saving solutions. Fitting multiple cages side-by-side increases torques. It is necessary to place one or two bearings next to the freewheel so that the outer race can rotate centrally to the inner race. When the sliding race is machined in the seats or on the shafts, the following specifications 1) must be adhered to 60/62 HRC surface hardness 2) 1 mm minimum depth of tempering after grinding 3) ensure the concentric rotation of the races 4) lubrication suitable for the application. For further information, please contact our Technical Department. |
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GP Series Races With Metric Measurements |
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Performance： The GP Series races with metric measurements are standard solutions always warehoused which makes using Type GP cages easy. The inner H and J races are already set to be fitted with centring bearings, that are needed each time GP cages are used. The outer A and B races must be key inserted. Make sure that the seat is not deformed after being fitted. We recommend you lubricate them properly as well as the relevant seals. For further information, please contact our Technical Department |
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CB-200 Series Freewheels |
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Performance： Type CB-200 is a sprag type free wheel not self-centring. It is therefore necessary to place one or two bearings next to the free wheel so that the outer race can rotate centrally to the inner race. The bearings to use next to the free wheel are written in the following table. A key will transmit the torque between outer ring and the shaft. The tolerance of the housing bore must be H7. The sprags work on the shaft made by the user which must be realized following these indications: 1) carburized depth after grinding 0,6 mm 2) surface hardness of HRC 58-62 3) core hardness of HRC 35-45 4) surface roughness must not exceed 6,3 μm 5) maximum shaft taper 0,01 mm per 50 mm length CB-200 series can be lubricated with grease or oil but they must not have EP additives |
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UK..ZZ Series Freewheels |
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Performance： The UK..ZZ series is a freewheel incorporating a 62.. series bearing. The self-centring freewheels are already greaselubricated and come with dust-proof protection For the UK..ZZ model, the transmission occurs by fitting keying with n6 tolerance for shaft and N6 for the seat. The UKC..ZZ model is equipped with a keyway on the inner race and should be fitted on k6 tolerance shafts. Seat fitting must be carried out with N6 keying tolerance. The UKCC..ZZ model is equipped with a keyway on the inner and outer race, the tolerances are h6 for the shaft and H6 for the rigid seat. The UK..ZZ Series is built with a C5 clearance that turns into a normal clearance after keying. The races can be glued to the shaft and the seat. In this case, the clearance remains C5. Working temperature: -10°C +60°C In case of different values please contact us |
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UK..2RS Series Freewheels |
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Preformance： The UK..2RS series is a freewheel incorporating a 62.. series bearing. The self-centring freewheels are already greaselubricated and come with water protection For the UK..2RS model, the transmission occurs by fitting keying with n6 tolerance for shaft and N6 for the seat. The UKC..2RS model is equipped with a keyway on the inner race and should be fitted on k6 tolerance shafts. Seat fitting must be carried out with N6 keying tolerance. The UK..2RS Series is built with a C5 clearance that turns into a normal clearance after keying. The races can be glued to the shaft and the seat. In this case, the clearance remains C5. Working temperature: -10°C +60°C In case of different values please contact us |
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GS Series Freewheels |
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Performance： The GS series is a sprag type free wheel with 59.. series integrated ball bearing. It’s a self centering free wheels already grease lubricated. It’s also possible on oil lubrication. In any case during the assembly seals have to be provided as illustrated in the next page. The torque is transmitted by a press fit assembly with tolerance R6 for the housing and tolerance p5 for the shaft. It’s supplied with an initial radial clearance for compensating the change of dimensions due to the press fitting. Working temperature: -20°C + 100°C For different values please contact us. |
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CKN Series Freewheels |
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Performance： The CKN series is a freewheel incorporating a 62.. series bearing, self-centring, grease-lubricated and comes with water protection This model is equipped with a keyway on the inner race and should be fitted on k6 tolerance shafts. Seat fitting must be carried out with N6 keying tolerance. The series is built with a C5 clearance that turns into a normal clearance after keying. The races can be glued to the shaft and the seat. In this case, the clearance remains C5. |
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