Miniature carriage units - corrosion-resistant - with cylindrical roller flat cages (MAI 77)
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Miniature carriage units corrosion-resistant RMWE..VA > Cylindrical roller flat cages corrosion-resistant > through hardened, corrosion-resistant steel with aminimum hardness of 620 HV > cage strip made from corrosion-resistant steel > precision ground raceways for rolling elements > counterbored through holes for the fixing screws >

Static load safety factor The static load safety factor S > indicates the security with regard to permissible permanent deformation in the bearing without affecting the guidance accuracy and smooth running ofthe bearing. It can be determined using the following formula:If high demands are placed on accuracy and smoothness of running, the static load safety factor should not be less than S C S -------= > > P > M S -------= > > M > = 3.For high loads, the load carrying capacity of the fixing screws must be checked!The equivalent static bearing load is determined by themaximum load F > max . P...

Preload Miniature carriage units RMWE..VA are preloaded (Table 1). Increasing the preload has the effect of increasing: ֢֠ the rigidity > Locating face Set no.Set no. ■ the moment load carrying capacity ■ the guidance accuracy.However, preload also influences the displacement resistance and the operating life of cage guidance systems! Table 1 Preload class > Marking area Class Preload Suitable applicationsV10,005 ׷ Cto0,02 CLow to moderate loads;moderate to high rigidity;moment loads Figure 2 ׷ Locating face and marked face > 156 192 Location of guideways and carriages The defined locating...

Hole patterns The hole pattern of the carriages and guideways conforms toDIN 645-2. The counterbores in the guideways for series RMWE 12 VA and RMWE 15 VA allow the use of larger fixing screws. Larger screws should always be used if high lateral loads or moment loads are present!The guideways have a symmetrical hole pattern. In this case, C > 4 655 =C CCC Locating face Marking area 5 = C > 6 (Figure 5).For guideways with a symmetrical hole pattern: C == 12 > 5 C > 6 --- L n ַ C () > 4 V > s C 5 , C 6 mmDistance between start or end of guideway and nearest holeLmmLength of guidewayn֖Maximum...

Parallelism of mounted guideways For guideways arranged parallel to each other, the parallelism value t given in Figure 8 and Table 3 should be adhered to > t t C (for all machined surfaces) ■ If the maximum values are used, this may increase thedisplacement resistance > C ■ For larger tolerances, please consult the INA engineering service. > HNot convex ■ Table 3 Values for t For calculation of H, see page 8. > Miniature carriage unit Guideway Parallelismt tb Designation Designation mRMWE 7 VARMWT 73RMWE 9A VARMWT 93RMWE 12 VARMWT 124 RMWE 15 VARMWT 155 Figure 8 ׷ Parallelism of mounted...

1) Miniature carriage unit Accuracy class > Available only by agreement.The standard version G2 should be used in preference. > Permissible deviation Tolerance Accuracy class > G1 G2 m mfor heightH 10 10Height difference > 1) H510for distanceA > 1 715 > 1 1) Dimensional difference between several carriages on one guideway, measured at the same point on the guideway. >

Length tolerances for guideways Tolerances: see Figure 12 and Table 7. Table 7 Length tolerances > LC Miniature carriage unit TolerancesGuideways/carriages n 4 0,25 0,4 Designation L 360 mmRMWE..VAfrom +0,6 mm to ז1,1 mm a / 2 C 4 Special designs Available by agreement: ■ plastic closing plugssuffix KA > 152 142 Figure 12 ַ Length tolerances ■ brass closing plugssuffix KAM. Ordering example and ordering designation Corrosion-resistant miniature carriage unit with cylindricalrollerflat cage and one carriageRMWE..VASize code15Guideway length C > k 130,4mmSafety range z4 z 10Guideway length LL...

Dimension table ַ Dimensions in mm Unit Dimensions Mounting dimensions Designation L > max2) C > 1max3) H A A > 1 A > 2 a 0,005 ֖ 0,05 a > 3 RMWE 7 VA 250 200 8 17 5 12 7 2,5 > 1) Corrosion-resistant steels may nevertheless undergo various forms of localised corrosion and corrosion involving loss of surface material!If very high levels of corrosion resistance are required, the suitability of the unit for the specific application must be investigated! > 2) Maximum manufactured length of guideway. Special lengths are available by agreement. > 3) Maximum manufactured length of carriage....

Dimension table ַ Dimensions in mm Unit Dimensions Mounting dimensions Designation L > max2) C > 1max3) H A A > 1 A > 2 a 0,005 ֖ 0,05 a > 3 RMWE 9A VA 360 300 10 20 5,5 15 9 2,5 > 1) Corrosion-resistant steels may nevertheless undergo various forms of localised corrosion and corrosion involving loss of surface material!If very high levels of corrosion resistance are required, the suitability of the unit for the specific application must be investigated! > 2) Maximum manufactured length of guideway. Special lengths are available by agreement. > 3) Maximum manufactured length of carriage....

Dimension table ַ Dimensions in mm Unit Dimensions Mounting dimensions Designation L > max2) C > 1max3) H A A > 1 A > 2 a 0,005 ֖ 0,05 a > 3 RMWE 9 VA > 4) 360 300 10 20 5,5 15 9 2,5 > 1) Corrosion-resistant steels may nevertheless undergo various forms of localised corrosion and corrosion involving loss of surface material!If very high levels of corrosion resistance are required, the suitability of the unit for the specific application must be investigated! > 2) Maximum manufactured length of guideway. Special lengths are available by agreement. > 3) Maximum manufactured length of...

Dimension table ַ Dimensions in mm Unit Dimensions Mounting dimensions Designation L > max2) C > 1max3) H A A > 1 A > 2 a 0,005 ֖ 0,05 a > 3 C > 7 C > 2 C > 4 C > 5 /C > 6 C > 8 C > 9 RMWE 12 VA > 4) 360 200 13 27 7,5 20 12 3,5 7 15 25 12 5 30 > 1) Corrosion-resistant steels may nevertheless undergo various forms of localised corrosion and corrosion involving loss of surface material!If very high levels of corrosion resistance are required, the suitability of the unit for the specific application must be investigated! > 2) Maximum manufactured length of guideway. Special lengths are...