NEW PRODUCT RECIRCULATING BALL BUSHES MEMBER OF THE LÄPPLE GROUP

RECIRCULATING BALL BUSH ~ISO9448-3 The recirculating ball bush is used when very large paths (strokes) are travelled. This is only limited by the mounting situation. In comparison to guides with ball cage, however, the lower dynamic load figures (C) should be observed. Despite the high number of ball tracks, fewer balls are in usage. For optimum service life, a movement path (stroke) of three times the length of the recirculating ball bush is recommended (3 x l1). We do not recommend press-fitting the bush since that 2 Ball carrier: Aluminium causes unacceptable alteration to the shape of the...

MOUNTING EXAMPLE Order number for recirculating ball bush ~ISO9448-3 RECIRCULATING BALL BUSH ~ISO9448-3 Ball tracks ORDERING CODE (EXAMPLE): Recirculating ball bush ~ISO9448-3 Standard design

RECIRCULATING BALL BUSH WITH COLLAR ~ISO9448-7 The recirculating ball bush is used when very large paths (strokes) are travelled. This is only limited by the mounting situation. In comparison to guides with ball cage, however, the lower dynamic load figures (C) should be observed. Despite the high number of ball tracks, fewer balls are in usage. For optimum service life, a movement path (stroke) of three times the length of the recirculating ball bush is recommended (3 x l1). NOTE: Steel, hardened 62 ± 2 HRC The attachment is with 3 retaining elements, from Ø d1 = 38 2 Ball carrier: Aluminium...

2081.69. .1 Order number for Recirculating ball bush with collar ~ISO9448-7 RECIRCULATING BALL BUSH Ball tracks ORDERING CODE (EXAMPLE): Recirculating ball bush with collar ~ISO9448-7 Standard design

SELECTION MATRIX GUIDE PILLARS GUIDE BUSHES Ball guide bushes Guide bearing for ball bearing guide GUIDE BUSHES GUIDE PILLARS Recirculating ball bush 2061.69. 2081.69. Guide pillars with centre fixing Guide pillars with centre fixing Guide pillars conforming to DIN 9825 Guide pillars, bolt-on type Pallet die sets Tolerance range Guide pillars to AFNOR Guide pillars Guide pillars for large tools Guide pillars ECO-LINE

Guide bushes ECO-LINE bronze with solid lubrication rings 2051.72. 2091.71. 2081.71. 2091.72. 2081.74. 2091.74. 2081.75. Guide bushes, bronze coated 210.85. 2081.85. 2081.81. 2081.84. Guide bushes with solid lubrication Guide bearing with solid lubricant 2031.70. 2087.70. 2082.70. 2087.71. 2082.71. 2087.72. 2085.70. 2087.73. 2085.72. Guide bushes with solid lubrication Guide bushes with solid lubrication Guide bushes with solid lubrication Guide bushes with solid lubrication

ASSEMBLY OF GUIDE ELEMENTS DIMENSIONAL REQUIREMENTS AND TOLERANCES RECIRCULATING BALL BUSH SLIP-FIT BONDING* RECIRCULATING BALL BUSH WITH COLLAR TRANSITION FIT *SLIP-FIT BONDING: The adhesive gap must not be less than 0.005 mm (in Ø min. 0.01 mm). In the case of a smaller adhesive gap, the adhesive is stripped off during joining, and the adhesive connection is inadequate. The existing fit tolerances do not always result in the minimum adhesive gap. This must be taken into account when manufacturing the receiving bore.

BALL GUIDES LOAD DIAGRAM BEARING LIFE VERSUS LOADING Values shown are based on the Impact Factor of f s = 1: Application to normal conditions in respect of press and die set, with a maximum bearing temperature of 100 °C. Formula for calculation of nominal bearing life Lh = 833.333 mm . C 2 H . nf f s. F nf = strokes per minute [H . min -1 ] C = dynamic load [N] 10 F = radial load acting on guide [N] . . -1 v = 2 H nf [m . min ] 1000 Q = F . 100 [% of C] C

BALL GUIDES - CALCULATION TABLE DYNAMIC LOAD FIGURES FOR RECIRCULATING BALL BUSH DEFINITION: The dynamic load index C in N constitutes a load with constant size and direction, at which 90 % of a sufficiently large quantity of equal bearings achieve a minimum of the service life of +10 5 m. This applies for solely longitudinal movement. DYNAMIC LOAD INDEX C FOR WHOLE PILLAR-Ø d1

FIBRO GmbH Business Unit Standard Parts LÄPPLE AUTOMOTIVE FIBRO LÄPPLE TECHNOLOGY MEMBER OF THE LÄPPLE GROUP