SKF Linear Ball Bearings

LBBR linear ball bearings with raceway plates Fw 3-50 mm Linear ball bearing LBBR with double lip seal Dimensiones Fw C 7 8 10 12 15 17 19 21 24 28 35 40 52 62 10 12 15 221) 24 26 28 28 30 30 40 50 60 70 mm 3 4 5 6 8 10 12 14 16 20 25 30 40 50 1) agzahlen 0 0 0 0 0 0 0 D C0 510 620 780 1 370 2 650 4 400 6 300 No. of ball rows Basic load Mass ratings dyn. C — N 4 4 4 4 4 5 5 5 5 6 7 8 8 9 60 75 170 335 490 585 695 710 930 1 160 2 120 3 150 5 500 6 950 stat. C0 — 0,015 0,022 0,026 0,055 0,084 0,16 0,22 LBBS 12 LBBS 16 LBBS 20 LBBS 25 LBBS 30 LBBS 40 LBBS 50 Linear ball bearings standard with 2 double design lip seals stainless steel standard design with 2 double lip seals LBBR 3 LBBR 4 LBBR 5 LBBR 6A LBBR 8 LBBR 10 LBBR 12 LBBR 14 LBBR 16 LBBR 20 LBBR 25 LBBR 30 LBBR 40 LBBR 50 LBBR 3/HV6 LBBR 4/HV6 LBBR 5/HV6 LBBR 6A/HV6 LBBR 8/HV6 LBBR 10/HV6 LBBR 12/HV6 LBBR 14/HV6 LBBR 16/HV6 LBBR 20/HV6 LBBR 25/HV6 LBBR 30/HV6 LBBR 40/HV6 LBBR 50/HV6 LBBR 3-2LS/HV6 LBBR 4-2LS/HV6 LBBR 5-2LS/HV6 LBBR 6A-2LS/HV6 LBBR 8-2LS/HV6 LBBR 10-2LS/HV6 LBBR 12-2LS/HV6 LBBR 14-2LS/HV6 LBBR 16-2LS/HV6 LBBR 20-2LS/HV6 LBBR 25-2LS/HV6 LBBR 30-2LS/HV6 LBBR 40-2LS/HV6 LBBR 50-2LS/HV6 kg 44 60 129 270 355 415 510 530 630 800 1 560 2 700 4 500 6 300 0,0007 0,001 0,002 0,006 0,007 0,011 0,012 0,013 0,018 0,021 0,047 0,07 0,130 0,18 Width 22 does not correspond to Gewicht Kurzeichen series 1 in ISO standard 10285. Normalmit ausführung 2 Dichtscheiben kg Designations LBBS 12-2LS LBBS 16-2LS LBBS 20-2LS LBBS 25-2LS LBBS 30-2LS LBBS 40-2LS LBBS 50-2LS LBBR 3-2LS LBBR 4-2LS LBBR 5-2LS LBBR 6A-2LS LBBR 8-2LS LBBR 10-2LS LBBR 12-2LS LBBR 14-2LS LBBR 16-2LS LBBR 20-2LS LBBR 25-2LS LBBR 30-2LS LBBR 40-2LS LBBR 50-2LS Appropriate special seals Dimensions Designations Fw D B1 Appropriate special seals Dimensions Designations B1 Fw D mm — mm SP-6x12x2 SP-8x15x3 SP-10x17x3 SP-12x19x3 SP-14x21x3 SP-16x24x3 SP-20x28x4 25 30 40 50 6 8 10 12 14 16 20 12 15 17 19 21 24 28 2 3 3 3 3 3 4 — 35 40 52 62 4 4 5 5 SP-25x35x4 SP-30x40x4 SP-40x52x5 SP-50x62x5 5

LPBR linear plain bearings LPBR linear plain bearings have the same dimensions as the LBBR linear ball bearings described above. In selecting the most suitable slide material (polyacetal with polyethylene) special attention was given to the stick-slip-free characteristics. Furthermore the SKF linear plain bearings require little maintenance and show excellent performance under breakdown conditions. They have high static load carrying capacity and are resistant to shock loads. The use of lubricant is recommended after installation to allow improved running-in even when nonlubricated operation is desired. 6 These bearings are intended for use in those applications where linear ball bearings cannot be used due to extraordinary operating conditions. This is the case especially when the bearing arrangement is subjected to heavy shock loads or vibrations or to high accelerations and speeds in the unloaded state. Under these operating conditions linear plain bearings are the better choice compared with linear ball bearings, however, increased friction must be expected.

LPBR linear plain bearings closed design Fw 12-50 mm Linear plain bearing LPBR Special seal Dimensions Basic road ratings Pw dyn. at 0,1 m/s C D C C4 28 30 30 40 50 60 70 10 12 13 17 20 24 27 Mass stat. 4 m/s C Designation Linear plain bearing C0 Appropriate special seals Dimensions Fw D B1 Designation -0,07 mm 12 16 20 25 30 40 50 N 19,19 24,23 28,24 35,25 40,27 52,32 62,35 965 1 530 2 080 3 400 4 800 7 650 10 800 24 38 52 85 120 193 270 3 350 5 400 7 350 12 000 17 000 27 000 38 000 kg — mm 0,006 0,009 0,011 0,024 0,033 0,063 0,088 LPBR 12 LPBR 16 LPBR 20 LPBR 25 LPBR 30 LPBR 40 LPBR 50 12 16 20 25 30 40 50 19 24 28 35 40 52 62 3 3 4 4 4 5 5 G 12x19x3 G 16x24x3 G 20x28x4 G 25x35x4 G 30x40x4 G 40x52x5 G 50x62x5 Other sizes and dimensions are available on request. * Note The outside diameter tolerance of the linear ball bearings and linear plain bearings is such that no additional axial location is required when the bearings are fitted into a bore with a tolerance of J7 or J6. 7

Linear bearing units with LBBR linear bearings or LPB linear plain bearings Linear bearing units incorporating bearings of ISO series 1 are available for unsupported applications in closed design. These cost-effective bearing units are extremely space-saving thanks to the compactness of the design, but they can nevertheless accommodate loads exceeding 25 000 N (e.g. LQBR 50-2LS; see also page 13). The new double lip seals fitted to the LBBR bearings enable these units to run without relubrication, 8 under normal operating conditions. On special request, it is possible to buy pre-greased bearings. This guarantees that the right amount of grease is inserted and that the grease is properly distributed in the bearing. The systems are available in the length required by the customer. See also the chapter „Precision shafts“, page 46 ff. Please note that the maximum permissible angular misalignment is 15 minutes of arc. For the influence on the load carrying capacity, see diagram 9 on page 18 in the technical handbook. A corrosion resistant alternative consists of aluminium housings with stainless steel linear ball bearings such as LBBR 20-2LS/HV6 or aluminium housings fitted with plain bearings. For such applications the shafts are made of stainless steel, normally X90 CrMoV18.

Linear bearing units with LBBR linear bearings or LPB linear plain bearings LUHR/LUJR linear bearing units These linear bearing units consist of a housing of extruded light alloy and the compact LBBR linear ball bearings or the LPBR linear plain bearings of similar dimensions. The LUHR design for shaft diameters from 12 to 50 mm are available fitted as standard with LBBR linear ball bearings with or without integrated seals or with LPBR (Designation LUHR.PB) linear plain bearings. For severe operating conditions, notably in the presence of high levels of contamination, the extended LUJR linear bearing units have been included in the range. These incorporate LBBR linear ball bearings and two G type seals. LUHR and LUJR linear bearing units cannot be relubricated. The previous linear bearing units LUBR and LUER are no longer shown in the catalogue, but are still available on request. between the bearings, and the duo configuration permit easy fitting of a linear drive. LQBR quadro linear bearing units LTBR tandem linear bearing units These comprise a one-piece extruded aluminium housing and two LBBR linear ball bearings mounted one behind the other. These units are fitted with seals as standard and can not be relubricated. They are particularly suitable to tables or sildes of any width. LTDR duo linear bearing units Four LBBR linear ball bearings are located in an aluminium housing. The unit is sealed and the bearings are spaced sufficiently to permit the fitting of an appropriate linear drive. Duo and quadro linear bearing units based on LBBR linear ball bearings can be used to make compact, simple table configurations. For suitable shaft blocks (LEBS), see page 41. The LTDR units are characterised by the fitting of two LBBR-2LS linear ball bearing units in parallel in an aluminium housing. The separation LTBR tandem linear bearing unit LUJR linear bearing unit LUHR linear bearing unit 9

LUHR and LUJR linear ball bearing units with closed housing and LBBR linear ball bearings Fw 12-50 mm A A1 Fw Da C1 LUHR linear bearing unit LUJR linear bearing unit with integral double with shaft seals lip seal Dimensions Fw A A1 C 1 D a H N2) H1 H 2 H3 L J 33 38 45 54 60 76 92 29 4,3 34 4,3 40 5,3 48 6,6 53 6,6 69 8,4 82 10,5 N12) Basic load Mass ratings Design dyn. stat. LUHR LUJR C C0 — N M 5 M 5 M 6 M 8 M 8 M 10 M 12 695 930 1 160 2 120 3 150 5 500 6 950 0,01 mm 12 16 20 25 30 40 50 28 30 30 40 50 60 70 35 37 39 49 59 71 81 34 36 38 48 58 70 80 19 24 28 35 40 52 62 17 19 23 27 30 39 47 16 18 22 26 29 38 46 11 11 13 18 18 22 26 40 45 53 62 67 87 103 Designations Linear bearing unit1) without with seal double lip seals with shaft seal LUHR 12 LUHR 16 LUHR 20 LUHR 25 LUHR 30 LUHR 40 LUHR 50 LUJR 12 LUJR 16 LUJR 20 LUJR 25 LUJR 30 LUJR 40 LUJR 50 kg 510 630 800 1 560 2 700 4 500 6 300 0,08 0,10 0,14 0,25 0,37 0,74 1,19 0,10 0,12 0,18 0,30 0,44 0,86 1,37 LUHR 12-2LS LUHR 16-2LS LUHR 20-2LS LUHR 25-2LS LUHR 30-2LS LUHR 40-2LS LUHR 50-2LS The previous linear bearing units LUBR and LUER are no longer shown in the catalogue, but are still available on request. For suitable shaft blocks for these bearing units, designation LSHS, see page 40 of this catalogue. 1) 2) Linear bearing units of the LUHR design are also available fitted with LPBR linear plain bearings. Designations: e. g. LUHR 20 PB. For screws with internal hexagon to DIN 912/ISO 4762. 10

LTBR tandem linear bearing units with closed housing and LBBR linear ball bearings Fw 12-50 mm A C Da Fw LTBR linear bearing unit with integral double lip seals Dimensions Fw A C Basic load ratings Da H 0,01 H1 H2 H3 33 38 45 54 60 76 92 16 18 22 26 29 38 46 11 11 13 18 18 22 26 J J1 L N1) mm 12 60 16 65 20 65 25 85 30 105 40 125 50 145 28 30 30 40 50 60 70 19 24 28 35 40 52 62 17 19 23 27 30 39 47 29 35 34 40 40 45 48 55 53 70 69 85 82 100 40 4,3 45 4,3 53 5,3 62 6,6 67 6,6 87 8,4 103 10,5 N11) dyn. C — N Mass Linear bearing unit with double lip seals stat. C0 M 5 1 140 1 020 M 5 1 530 1 270 M 6 1 900 1 600 M 8 3 450 3 150 M 8 5 200 5 400 M 10 9 000 9 000 M 12 11 400 12 700 Designations kg 0,17 0,22 0,31 0,54 0,80 1,57 2,51 LTBR 12-2LS LTBR 16-2LS LTBR 20-2LS LTBR 25-2LS LTBR 30-2LS LTBR 40-2LS LTBR 50-2LS For suitable shaft blocks for these bearing units, designation LSHS, see page 40 of this catalogue. 1 ) For screws with internal hexagon to DIN 912 / ISO 4762. 11

LTDR Duo linear bearing units with closed housing and LBBR linear ball bearing Fw 12-50 mm A Da Fw LDTR linear bearing unit with integral double lip seals Dimensions Fw A Basic load ratings Mass Da H 19 24 28 35 40 52 62 15 17,5 20 25 28 35 40 0,01 H1 H2 H3 J 30 35 40 50 56 70 80 14 16,5 19 24 27 34 39 11 11 13 18 18 22 26 69 86 103 123 133 166 189 L L1 N1) mm 12 16 20 25 30 40 50 28 30 30 40 50 60 70 80 40 4,3 96 52 4,3 115 63 5,3 136 75 6,6 146 80 6,6 184 97 8,4 210 107 10,5 N11) dyn C — N M 5 M 5 M 6 M 8 M 8 M 10 M 12 1 140 1 530 1 900 3 450 5 200 9 000 11 400 Linear bearing unit with double lip seals stat. C0 1 020 1 270 1 600 3 150 5 400 9 000 12 700 Designations kg — 0,15 0,22 0,30 0,58 0,85 1,56 2,21 LTDR 12-2LS LTDR 16-2LS LTDR 20-2LS LTDR 25-2LS LTDR 30-2LS LTDR 40-2LS LTDR 50-2LS For suitable shaft blocks for these bearing units, short designation LEBS.A, see page 41 of this catalogue. 1) For screws with internal hexagon to DIN 912 / ISO 4762 at the centre (0,5 A) of the linear bearing unit. 12

LQBR Quadro linear bearing units with closed housing and LBBR linear ball bearing Fw 12-50 mm A C Da Fw Bohrungsabstand J1 LQBR linear bearing unit with integral double lip seals Dimensions Fw A C Basic load ratings Mass Designations Da H 19 24 28 35 40 52 62 15 17,5 20 25 28 35 40 0,01 H1 H2 H3 30 35 40 50 56 70 80 14 16,5 19 24 27 34 39 11 11 13 18 18 22 26 J J1 L L1 N1) mm 12 16 20 25 30 40 50 70 80 85 100 130 150 175 28 30 30 40 50 60 70 69 59 80 40 4,3 86 70 96 52 4,3 103 73 115 63 5,3 123 87 136 75 6,6 133 117 146 80 6,6 166 132 184 97 8,4 189 154 210 107 10,5 N11) dyn. C — N Linear ball baring unit with double lip seals stat. C0 kg M 5 1 860 2 040 0,38 M 5 2 500 2 550 0,57 M 6 3 100 3 200 0,82 M 8 5 600 6 300 1,43 M 8 8 500 10 800 2,15 M 10 14 600 18 000 3,83 M 12 18 600 25 500 5,40 — LQBR 12-2LS LQBR 16-2LS LQBR 20-2LS LQBR 25-2LS LQBR 30-2LS LQBR 40-2LS LQBR 50-2LS For suitable shaft blocks for these bearing units, designation LEBS.A, see page 41 of this catalogue. 1) For 4 screws with internal hexagon to DIN 912 / ISO 4762. 13

LBC . A/LBH . A linear ball bearings · LPA linear plain bearings In order to keep abreast of ever increasing user demands, SKF Linearsysteme GmbH has fundamentally revised its linear ball bearings of series LBC (ISO series 3). The resultant new linear ball bearings offer distinct advantages over the former LBC series and the linear ball bearings currently available in the market. A particularly important fact is that the new ISO series 3 bearings can now also be supplied in a corrosionresistant standard version. Moreover, their integral double-lip seal permits ‘for-life’ lubrication under standardoperating conditions. As a matter of course, the new linear ball bearings are interchangeable with the former LBC series and all linear ball bearings currently available. LBC . A linear ball bearings are available for shaft diameters from 5 to 80 mm. They are characterised by high load carrying capacity. As with all SKF linear ball bearings, they are available with a choice of shields or seals. LBC . A linear ball bearings are, in general, designed for grease lubrication. The cage is provided with a through-bored radial hole which permits the attachment of a grease nipple to provide longitudinal and axial location. Grease may be applied direct onto the shaft through this hole. For the relubrication of LBHT . A linear ball bearings described on this page, the housing must be provided with a grease distribution channel in the bore. The grease is then forced onto the raceway between the load carrying plates. Information on the location of these attachment holes and grease nipples is shown on pages 16 and 17 of this catalogue. Stainless The application of linear bearings has been extended by this new type with the introduction of a corrosion resistant variant Raceway segments and balls can be specified in high alloy stainless steel by adding the suffix HV6 to the designation, e.g. LBCR 16A-2LS/HV6. In combination with our stainless steel shafts, the linear ball bearing LBC . A thus offers the possibility of realising a design completely of stainless steel. Linear ball bearing LBCF Linear ball bearing LBCD Linear ball bearing LBCR Linear ball bearing LBHT Linear ball bearing LBCT 14

LBCR . A linear ball bearings LBCR . A linear ball bearings comprise a cage in which the balls are guided, together with the raceway segments and the seals or shields. By virtue of their exceptionally long track length and the machined raceway osculation they are able to accommodate heavy loads. LBCR . A linear ball bearings, with their optimised raceway segments and position for maximum load carrying capacity, can be mounted in closed as well as adjustable housings. When these bearings are mounted in a closed housing, the tolerance of the inscribed diameter of the ball set and hence the operating clearance is determined by the tolerance of the housing bore. When mounted in slotted housings the linear guides can be adjusted to the particular application, to provide either operating clearance or preload. LBCR . A linear ball bearings must be located in axial direction. LBCD . A linear ball bearings The LBCD . A linear ball bearing is a variant of the LBCR . A design. The main characteristic is a self-aligning capa-bility which allows tilting of the race way segment through an angle of /-30 minutes of arc, thus compensating automatically for alignment errors which may be caused by inaccuracies in fitting or manufacturing (housing bore diameter) or by significant bending of unsupported shafts. The self-aligning qualities of these bearings cannot however compensate for two non-parallel shafts in an assembly. Tilting of the bearing is achieved through a spherical elevation ground at the centre of the raceway segment. The diameter of the cage is also reduced inside the housing, so ensuring that the bearing- and especially the shield or seals - remains concentric with the shaft. All other characteristics of the LBCR . A linear ball bearings are also valid for the self-aligning LBCD . A design. LBCD linear ball bearings must always be firmly located in the axial direction. LBCT . A and LBHT . A linear ball bearings The open LBCT . A and LBHT . A linear ball bearings differ from the LBCR . A bearings in that a sector has been cut away from the cage and the shields or seals. This allows the shaft to be supported at several positions or along its whole length, so that the accuracy of guidance cannot be affected by any shaft bending. The open design of the LBCT . A linear ball bearings means that one raceway is absent. The carrying capacity in the main loading direction is however not reduced to any significant extent. In comparison with the LBCT . A design, the LBHT . A linear ball bearings have been optimised in terms of the number of raceway segments and hence the load carrying capacity. They are suitable for shaft diameters from 20 to 50 mm. SKF LBCT . A and LBHT . A linear ball bearings have an important advantage compared with other open linear ball bearings. They are protected against contaminants by an axial lip in the cage at each side of the opening, which acts as a gap-type seal against the shaft. Open LBCT . A/LBHT . A linear ball bearings must always be located in the axial and turning direction. LPAR and LPAT linear plain bearings These linear plain bearings have the same external dimensions as those of the

Important notice SKF linear ball bearings are coated with a corrosion inhibiting preservative. Before mount-ing the bearings, they should be suitably lubricated. See also Publica-tion No. 4185E, SKF Linear guide handbook. Product Overview Standard available from stock (changes reserved) Non-standard Price and delivery time on request