Sprag-Type Freewheel-Clutches

More documents

Recommendations

Info

IntroductionMounting InstructionsSpeed LimitsGMN Sprag-Type-Clutches Series 8000Basic and Specific InformationThe sprag-type freewheel clutches ofseries 8000 are based on a newlydeveloped sprag with a nominal heightof 8.33 mm ( 21 /64 in). For shaft sizes of38 to 150 mm or corresponding inchsizes this series offers alternative optionsor additional solutions for our famousseries FE 400. Similar to FE 400 the new8000 series provides very high torquecapacity in relation to the requiredmounting space due to the largequantity of sprags. The newly designedclamping curve offers smooth andreliable torque pick up, which guaranteesoptimum performance for any freewheelclutch application such as indexing,overrunning or backstopping.The diameter range mentioned abovedoes not show the limits for the usage ofthis series. For special requirements ofour customers we will be pleased todevelop and offer new types below orabove the existing standard programme.We offer clutches of the 8000 series infour different widths: 13, 16, 19, 25 mm.The partnumber shows this dimension.The standard does not incorporate allwidths for any diameter right now, butmissing combinations will be realisedupon requirement. The two or three lastdigits of the part number show theclosest full shaft diameter of the metricconversion of the basically inch size ofthe metric conversion of the basicallyinch size of the shaft. e.g. FE 8072 for72.21 mm = 2 27 /32 in. Special clutchescould be designed for exact pure metricshafts or housings (just one of them at atime).The race ways the series 8000 insertclutches should run on must behardened and ground. When surfacehardening is used, the minimumhardening depth (Eht) at full torque mustbe 1.3 mm. Lower torque requirementsallow lower depths.The tolerances for the mating parts ofseries 8000 have not to be assofisticated as with series 400 due to thelarger size of the sprags and the differentshape of the clamping curve.Mounting fits:(only series 8000)Shaft: d L = h6Housing: D L = H6Hardness: HRC = 60 +4HardeningDepth: Eht ≥ 1.3 mmSurface Finish: R Z ≤ 2.5 µmExcentricity: e ≤ 0.09 mm(coaxiality of inner and outer race way)Axial limitation for the insert clutch will benecessary and can be arranged by ashoulder, a washer or snapring (roundedge towards the clutch). For ease ofmounting we recommend chamferedshafts and housings.When torque is transmitted the spragsare in a fixed position between innerandouter race. Under these conditons –theoretically – there is no speed limit. Inbackstopping and overrunningapplications the influence of centrifugalforces has to be considered.Tests showed that with oil lubricationseries 8000 sprags surf on ahydrodynamic lubricating film underconstant conditions (v = const.) withrotating shaft. The clutch itself turns veryslowly under these conditions and socentrifugal forces do not becomeeffective. The same situation could beexpected with grease lubrication at aslightly higher speed level.Due to the idling behaviour of our spragsof series 8000 there would be no needfor sprags lifting off by centrifugal forceor for dual cages or cages fix by clips orsprings.The rotating speed of the clutch itselfdepends on size, viscosity andtemperature. With a hydrodynamiclubricating film only minimal wear couldbe expected.Please note that in indexing applicationsdue to alternating conditions ahydrodynamic lubricating film cannot becreated. Please contact our technicalstaff for some advise if this kind ofapplications should arise.22
FE 8000Dimensions Part Torque M Dimensions[mm] number [Nm] [ft lb] [in]d L D L B d L D L B27,76 44,42 13 FE 8027 Z 13 210 155 1.0929 1.7488 0.511838,09 54,75 13 FE 8038 Z 13 333 245 1.4996 2.1555 0.511816 FE 8038 Z 16 479 353 0.629919 FE 8038 Z 19 627 462 0.748040,00 56,66 13 FE 8040 Z 13 361 266 1.5748 2.2307 0.511816 FE 8040 Z 16 517 381 0.629919 FE 8040 Z 19 677 499 0.748044,45 61,11 13 FE 8044 Z 13 427 315 1.7500 2.4059 0.511816 FE 8044 Z 16 614 453 0.629919 FE 8044 Z 19 803 592 0.748049,72 66,38 13 FE 8049 Z 13 515 380 1.9574 2.6134 0.511816 FE 8049 Z 16 741 546 0.629919 FE 8049 Z 19 970 715 0.748054,76 71,42 13 FE 8054 Z 13 606 447 2.1559 2.8118 0.511816 FE 8054 Z 16 874 644 0.629919 FE 8054 Z 19 1140 840 0.748025 FE 8054 Z 25 1682 1240 0.984358,00 74,66 19 FE 8058 Z 19 1260 929 2.2835 2.9394 0.748068,00 84,66 16 FE 8068 Z 16 1266 933 2.6772 3.3331 0.629972,21 88,87 13 FE 8072 Z 13 977 720 2.8429 3.4988 0.511816 FE 8072 Z 16 1411 1040 0.629919 FE 8072 Z 19 1845 1360 0.748025 FE 8072 Z 25 2715 2001 0.984379,69 96,36 25 FE 8079 Z 25 2619 1930 3.1374 3.7937 0.984383,34 100,00 25 FE 8083 Z 25 3407 2511 3.2811 3.9370 0.984393,34 110,00 19 FE 8093 Z 19 2907 2143 3.6748 4.3307 0.7480103,23 119,89 16 FE 8103 Z 16 2674 1971 4.0642 4.7201 0.629919 FE 8103 Z 19 3322 2449 0.748025 FE 8103 Z 25 4600 3391 0.9843123,34 140,00 25 FES 8123 Z 25 5965 4397 4.8559 5.5118 0.9843123,88 140,54 25 FE 8123 Z 25 5990 4415 4.8772 5.5331 0.9843126,22 142,88 25 FE 8126 Z 25 5998 4421 4.9693 5.6252 0.9843129,39 146,05 25 FE 8129 Z 25 6244 4602 5.0941 5.7500 0.9843140,00 156,66 25 FE 8140 Z 25 6686 4928 5.5118 6.1677 0.9843150,00 166,66 25 FE 8150 Z 25 7448 5490 5.9055 6.5614 0.9843GMN Sprag-Type-Clutches Series 8000Insert Element without Bearing* The nominal torque is based on the conditions for torque determination on pages 7 and 8.23
Page 2 and 3: QUALITÄTS-MANAGEMENTDie Qualitäts
Page 4 and 5: Series 400 - 8000: 2 Product Lines
Page 6 and 7: GMN Sprag-Type-ClutchesBasic Inform
Page 8 and 9: Transmittable Torque based on wall
Page 10 and 11: F NaF Nifriction contactFRFunctiona
Page 12 and 13: Freewheel-Clutchas an insert elemen
Page 14 and 15: FE 400FE 400 ZFE 400 Z2Mounting spa
Page 16 and 17: FR 400FP 400FPD 400122734GMN Sprag-
Page 18 and 19: Please note also ourflyer Ball Bear
Page 20 and 21: GMN Sprag-Type-ClutchesTolerance Ta
Page 24 and 25: Proper lubrication with only qualif
Page 26 and 27: Mounting Series 400 and Series 8000
Page 28: Sprag-TypeFreewheel-ClutchesPrintin

Sprag-Type Freewheel-Clutches

Create successful ePaper yourself

Delete template?

Save as template?