Ball bearings - Import export

Discover our range of bearings for agricultural equipment: ball bearings, roller bearings, cam rollers, needle bearings. To provide you with the most comprehensive range and impeccable quality, we work with the leading brands of agricultural bearings: Timken, NTN, SNR, NSK and Schaeffler. Our range includes more than 1,000 items, 450 of which are in stock. Landa offers a range of agricultural parts for forage harvesters, combine harvesters, balers, mower conditioners, windrowers and tedders. We develop wear parts for harvesting machines that are equivalent to original manufacturer parts, in partnership with industrial companies specialising in the fields of metallurgy (assembly, machining, forming).

Housing washer, shaft washer and rolling elements, bearing steel. Cage, steel. Note Axial ball bearings accept high axial loads from one direction but may not be loaded radially. The bearings are separable. This means the bearing parts can be fitted independently of each other. The main dimensions of the axial ball bearing conform to ISO 104 and DIN 711. Dimensional and running tolerances correspond to tolerance class PN acc. to DIN 620. These tolerance classes are standard and are well suited for most applications.

Steel housing. Nitrile rubber seal. Preloaded highaccuracy bearings with a 60° thrust angle. The bearings accept both radial and axial forces from both directions. Due to their preload, the angular contact ball bearings provide a high level of stiffness, excellent concentricity, precise tool positioning and repeatability. The integrated lowfriction seal effectively keeps dirt away from the bearing, thereby ensuring excellent operating safety and a long service life. The bearing friction coefficient Mrl is a reference value. The moment of inertia corresponds to that of the rotating inner ring. The limiting speeds are applicable after grease is applied. Technical data All bearings are supplied ready for mounting with lubricating grease type KE2P35 acc. to DIN 51825. Housing and shaft tolerances correspond to roundness tolerance class IT2 and perpendicularity tolerance class IT4.

Ceramic bearings Si3N4. Bearing cage PTFE. For most applications Si3N4 is the preferred material for ceramic bearings. Silicon nitride bearings are light, very hard and highly wear resistant. High and ultrahigh performance bearings are used in e.g. aerospace technology, metal production industries (high application temperatures), machine manufacturing, chemical industries (chemically aggresive substances), pharmaceutical and medical industries, semiconductor and biotechnology (clean room enviroments which may not be contaminated by lubricants). On request Special version with PEEK ball cage. Without ball cage.

Inner ring, outer ring and rolling elements, bearing steel. Cage sheet steel. Labyrinth seal sheet steel. Lip seal NBR. Version 2Z = sealed both sides with noncontact labyrinth seals. 2RSR = sealed both sides with contact lip seals. Note Deep groove ball bearings accept high radial and axial loads. Axial loads are absorbed in both directions. The versions 2Z and 2RSR are lubricated for life with a high quality grease. The main dimensions of the deep groove ball bearings conform to DIN 6251. Dimensional and running tolerances correspond to tolerance class PN acc. to DIN 620. The radial internal clearance corresponds to the clearance CN acc. to DIN 6204. These tolerance classes are standard and well suited for most applications.

Sprocket steel. Ball bearing chrome steel. Screw and nut steel. Version Sprocket teeth hardened to HRC 50, electro zincplated. Ball bearing with sealing discs 2ZC3. Screw ISO 4017, grade 8.8, electro zincplated. Nut ISO 4035, grade 8, electro zincplated. Note For tensioning roller chains. The sprocket set can be combined with all tensioning elements to form a readytoinstall chain clamp. The ball bearings are sealed both sides, permanently lubricated and maintenancefree. The sprocket can be moved on the screw and thus adapted to the chain track. With the duplex and triplex version, precision spacer sleeves ensure correct chain guidance. Rigid mounting without a tensioning element is also possible. Can also be used as an idler sprocket.

Housing steel. Cage plastic. Balls steel. Note The linear ball bearings correspond to series 3 of ISO 10285. With doublesided seal. The linear ball bearings have a plastic cage which results in quiet and outstanding running properties. With flange for direct mounting on the housing. Linear ball bearings with doublesided seal should be greased before installation. The specified load ratings apply with the use of hardened and ground shafts. Precision guide shafts 21595. Fastening screws 07160.

Housing steel. Cage plastic. Balls steel. Note The linear ball bearings correspond to series 3 of ISO 10285. With doublesided seal. The linear ball bearings have a plastic cage which results in quiet and outstanding running properties. With flange for direct mounting on the housing. Linear ball bearings with doublesided seal should be greased before installation. The specified load ratings apply with the use of hardened and ground shafts. Precision guide shafts 21595. Fastening screws 07160.

Shell, ballbearing steel. Cage, plastic. Balls, steel. Note With seals both ends. The linear ball bearing is secured using DIN 471 / 472 circlips. Application Suitable for applications where installation space is limited.

Lifting table for electric motor Fixing with its reinforced end for vertical using Drived by ballscrew or leadscrew Guided by 2 rods on ball bushings (or plain bearings in leadscrew version) Motor adaptation for lifting table These lifting tables are delivered without motor, but the adaptation of your motor can be done by us. Some adaptations are standard, especially for standard motors (NEMA17 or NEMA23), if the dimensions of your motor are not listed, contact us to check the feasibility of your motor adaptation from our rough parts. Presentation of the lifting tables to be motorized The trapezoidal screw version is irreversible and the axial precision is <0.15 mm (in practice 0,02 to 0,10 mm). The ballscrew version is reversible and the axial accuracy is <0.07 mm. The maxi stroke is 300 mm, and any intermediate stroke can be produced. Assembly of tables in XZ, YZ or XYZ systems For a crossed table XZ

Positioning table for electric motor Guided by 2 rods on ball bushings Motor adaptation on linear table These ballscrew tables are delivered without motor, but the adaptation of your motor can be done by us. Some adaptations are standard, especially for standard motors (NEMA17 or NEMA23), if the dimensions of your motor are not listed, contact us to check the feasibility of your motor adaptation from our rough parts. Tables with ballscrew for motor The ballscrew is reversible and the axial precision of these tables is <0.07 mm. The maxi stroke is 400 mm, and any intermediate stroke can be produced. For a XY cross table, the tables are mounted on each other directly by the body with option 308922* (smooth holes are made in the body of a table). For less precise positioning applications, these tables are available with trapezoidal screw.

Positioning table for electric motor Guided by 2 rods on ball bushings (bronze bearings on request) Motor adaptation for linear table These leadscrew tables are delivered without motor, but the adaptation of your motor can be done by us. Some adaptations are standard, especially for standard motors (NEMA17 or NEMA23), if the dimensions of your motor are not listed, contact us to check the feasibility of your motor adaptation from our rough parts. Trapezoidal screw tables for motor The trapezoidal screw is irreversible and the axial precision of these tables is <0.15 mm (in practice 0.02 to 0.10 mm). The maxi stroke is 750 mm, and any intermediate stroke can be produced. For a XY cross table, the tables are mounted on each other directly by the body with option 308922* (smooth holes are made in the body of a table). For more precise positioning applications, these tables are available with ballscrew.

Table for manual using or outside motorization Guided on ball bushings Guide tables without transmission These tables are used for manual movement or for external drives. The end plates are tapped in the center to optionally receive a hydraulic shock absorber or stroke adjustment. On request, a position clamping is available (option /BP0* on leadscrew tables). Range of linear tables with cylinder or screw transmission These tables exist, in the same dimensions, in different versions – suitable for pneumatic cylinder Type 307 – with trapezoidal screw for electric drive Type 308 – with ball screw for electric drive Type 308 – with trapezoidal screw for manual drive Type 309

Manual XY positioning stage realized with leadscrew table 309L Manual XY positioning stage Tables 309L are assembled carriage on carriage (long carriage version only) with the option 308922 * making smooth holes in the carriage of a table. The standard strokes for each axis are 100, 200 or 300 mm. The same options as the 309L tables are available (handwheel, knob, indicator, locking, base plate). The choice of the type of guide is also the same (bronze or ball bushings). The axial positioning accuracy of these tables is <0.15 mm (in practice 0.02 to 0.10 mm). Positioning tables with base plate Base plates are only available for standard strokes (100, 200 and 300mm). The lower plate allows the table to be fixed by the 4 holes in the central zone, while without a base plate, the table must be fixed by the end plates.

Small manual positioning table Driving by metric screw M6x1 Guided by 2 rods in steel Precision and compactness of this small manual table It is the smallest manual table in our range (width 54 mm / height 27,5 mm). Screw step is 1 mm per round and axial precision of these tables is <0.05 mm after locking in position (<0,10 mm before locking in position). Locking in position is done on the transmission screw, either at the top of the bearing (position B1) or at the end of the table (position B2). Grip knob, position indicator and maxi stroke The shaft outlet is threaded to screw in the grip knob with or without a position indicator (or the handwheel, but it can’t be used with an indicator). The maxi stroke is 100 mm, and any intermediate stroke can be produced. Compact lifting table, miniature cross table and base plate A version « Z axis » allows to fix the table only by its end plate. It can be fixed directly on the carriage of another table for a YZ mounting.

Manual table with double carriage with reversed step (the 2 carriages move away or get closer) Driving by leadscrew Guided by 2 rods Interest of table with reversed step The two carriages move away or get closer symmetrically during the rotation of the trapezoidal screw thanks to right and lefthand thread, this allows for example to adjust the spacing of the outer guides of a conveyor according to the type of product transported. Precision and robustness of right and lefthand thread table The guidance is provided by 2 rods on 4 calibrated bronze bearings (reduced play) or 4 ball bushings for guidance without clearance. The guide length of long body tables (309N/P) allows to accept large loads and torques. The axial positioning accuracy of these tables is <0.15 mm (in practice 0.02 to 0.10 mm). But the blocking in position is done on the carriage, by pressure on a guide rod, so as to remove the axial play of the nut of the trapezoidal screw after blocking

Manual lifting table Driving by leadscrew Guided by 2 rods Interest of lifting table These tables can be fixed by only one end thanks to a reinforced sole, for vertical or offset applications (using the mobile body). This simplifies installation directly on a plate or directly on the body of another table no need to build a vertical structure to fix it. In the fixed body version, they also make it possible to fix a load at the end (on the end flange) the quality of the embedding of the guide rods in this flange guarantees reliability even in the event of a bulky load (example label printer). Indeed, the assembly presented on the photo below corresponds to the height and width adjustment application of a label printer on a conveyor. The printer is attached to the end of the horizontal table and the base of the vertical table is attached to the side of the conveyor. For XY crossed tables, the tables are mounted one on the other directly by the body (long body version only)

Economical manual positioning table drived by leadscrew. Actuated by grip knob. Guided by 2 rods on bronze bearings. Using of economical manual tables Acting is done by a grip knob supplied with the table. Maxi stroke is 100 mm for size 0, and 200 mm for sizes 1 and 2. Any nonstandard intermediate stroke can be produced. The locking in position is done on the trapezoidal screw, either in position B1 (above the front plate) or in position B2 (at the end of the end plate) depending on the access and the space available. The position is visualized by a mechanical indicator or by ruler on the base plate. The fixing on the frame is done by the 2 end plates (laminated holes) or by the end plate in « Z axis » version for vertical applications. The positioning accuracy of economical manual tables The axial positioning accuracy of these tables is <0.20 mm (in practice 0.05 to 0.15 mm), because the axial play is largely eliminated after locking in position

We manufacture rough or fully machined ball and ball trunnion bearing for trunnion mounted ball valve : • Austenitic stainless steel Alloys (CF8M, CF3M…) • Aluminium-Bronze (UNS C95500…) • Duplex and Super Duplex (CD4MCu, CD3MN…) • Nickel-based and high-alloys (CW-6MC, CU5MCuC, M-35-1 CW-12MW…) • Martensitic alloys (CA15, CA6NM…) • Other materials on request

Outer jacket stainless steel. Cage stainless steel. Balls stainless steel. Note The linear ball bearings correspond to series 3 of ISO 10285. With doublesided seals and a stainless steel cage. The bearing is secured with DIN 471/472 circlips. Linear ball bearings with doublesided seals should be greased before installation. The specified load ratings apply with the use of hardened and ground shafts.

The axis height of the spindle bearings matches the fixed bearing unit 2407801. The floating bearing units consist of a housing with deep groove ball bearing, which adapts axially to the linear expansion of the spindle.

Steel and stainless steel precision balls applications are limitless (bearings, control balls, screw balls, runner balls…).

Housing anodised aluminium. Bearing surface Frelon (Teflon plus proprietary fillers). Virtually chemically inert. Selflubricating (no additional lubrication required). High temperature range (240 °C to +260 °C). Dampens vibrations. High static load capacity projected surface area x P (P = 1034 N/cm²) Suitable for food, pharmaceutical, medical and chemical applications. Insensitive to dirt.

Sprockets with hub one side for DIN ISO 606 roller chains. The sprockets have a centre bore or are predrilled (this can vary due to production methods). For this reason, the dimension D3 max. given in the table is the maximum diameter of the bore that the sprockets are supplied with. This pilot hole/centre bore can be customised with a reamed hole, reamed hole with keyway or a tapped hole by the customer. Alternatively, bushes can be fitted by the customer to reduce the diameter.

Housing plastic. Ball bearing stainless steel 1.4112. Plain bearing insert POM. Bushes and grease nipple stainless steel 1.4301. Version Plain bearing insert white. Housing green. Stainless steel parts bright. Note The housings are very robust, hard wearing and shock proof. They are resistant to most alkaline solutions, weak acids (PH 49) and brines. In contrast to cast or steel housings the special plastic in these housings prevent the formation of microorganisms. Drawing reference 1) ball bearing 2) plain bearing

Housing, stainless steel 1.4301. Bearing, stainless steel 1.4125. Seal, rubber NBR. Note Pillow block bearings consist of a sealed singlerow ball bearing with a spherical outer ring which is mounted in a housing. Because of the spherical outer surface of the bearing, shaft misalignment can be compensated for. The bearings are manufactured with a plus tolerance. This results in transition or press fits when using shafts with htolerances. The shaft is secured by grub screws on the inner ring. In normal applications, pillow block bearings are maintenancefree due to the lifetime lubrication. In difficult environmental conditions relubrication can be carried out over the grease nipple. All housing dimensions are nominal dimensions for which the usual casting tolerances must be taken into consideration.

Material Ballbearing steel 100Cr6. Seal, rubber NBR. Version Sealed on both sides with a spherical outer ring. Can be relubricated. Note The internal construction of the insert bearings corresponds to that of standard Series 6200 and 6300 radial ball bearing. However, they have wider inner rings for easier fastening on shafts. The inner rings are manufactured with a plus tolerance. This results in transition or press fits when using shafts with htolerances. The shaft is secured by 2 grub screws positioned 120° apart on the inner ring. The insert bearings are ready to install and are permanently lubricated with a suitable ball bearing grease. In normal applications, relubrication is not necessary.

Housing, grey cast iron. Bearing, ballbearing steel 100Cr6. Seal, rubber NBR. Pillow block bearings consist of a sealed singlerow ball bearing with a spherical outer ring which is mounted in a housing. Because of the spherical outer surface of the bearing, shaft misalignment can be compensated for. The bearings are manufactured with a plus tolerance. This results in transition or press fits when using shafts with htolerances. The shaft is secured by grub screws on the inner ring. In normal applications, pillow block bearings are maintenancefree due to the lifetime lubrication. In difficult environmental conditions relubrication can be carried out over the grease nipple. All housing dimensions are nominal dimensions for which the usual casting tolerances must be taken into consideration.

Standard HTD profile with metric pitch (rounded toothing). At least one toothed belt pulley must have a rim flange. Conical hole for taper clamping bushes. The taper clamping bushes must be ordered separately and are available for various shaft diameters. Pulleys with a taper hole are statically balanced as per ISO 1940 grade G16.