Deep grooveballbearing

To configure the following bearing arrangements, only bearings with universal design in the identical preload and tolerance class are permitted.

The TOT arrangement is employed for high radial loads and at high axial loads in both directions as a fixed bearing. With this arrangement, very high stiffness is achieved. It is reasonable to install a maximum of three bearings side by side; otherwise, dissipation of heat and lubricant supply to all bearings would become worse or more difficult. To avoid this, spacers should be used here. It is possible to feed the lubricant easily through radial holes in the outer spacer. All arrangements can be delivered as a set upon request.

Thrust roller bearing

The SLF standard portfolio comprises the 718, 719, 70, 72 and 73 series. Other series are manufactured upon request. In angular contact ball bearings with designation suffix B, the contact angle α is 40°, and in bearings without suffix, it is 20° or 30° depending on the series. Here, α is understood as the angle encompassed by the connecting line of the two points of contact between ball and raceways with the radial plane, and under which the load is transferred from one raceway to the other.

In most cases, the radial load resulting from the weight of the components run on the bearing and the external forces alone is higher than the required minimal load. If the achieved value remains below the minimum, please contact an SLF application technician.

As the default, we manufacture single row angular contact ball bearings with standard tolerances (PN) according to DIN 620-2 (Roller bearing tolerances – tolerances for radial bearings) and ISO 492 (Radial bearings – dimensions and tolerances). Different tolerance classes or special tolerances can also be delivered upon request.

Tapered rollerbearings

ACCUSHIM, INC. has one of the largest inventories of pre-cut shims in the Nation. We manufacture and distribute the ACCUSHIM line of pre-cut slotted stainless steel shims used for shaft alignment in seven sizes and fifteen thicknesses as well as custom shims to suit your needs.

In single row angular contact ball bearings, the main dimensions are standardized according to ISO 15 (Radial bearings – boundary dimensions, DIN 616 (Roller bearings – boundary dimensions) or DIN 628-1 (Radial-angular contact ball bearings).

Super precisionbearings

For angular contact ball bearings with universal design, it is possible to use spacers for all arrangements. When manufacturing the spacers, ensure that the inner and outer ring have exactly the equal width and are parallel-sided. When desired by the customer, angular contact ball bearings can also be delivered as bearing pairs with spacers, ready to install, in tandem, O or X arrangement.

Angular contact ball bearings are standard manufactured without seals; consequently, the bearing location has to be sealed around/on the surrounding components. The sealing must ensure that no moisture and contaminants enter the bearing, and that no lubricant is lost. Angular contact ball bearings without seals are delivered ungreased, but must be lubricated with oil or grease. Choose lubricant according to the application.

Back to back vs face to face bearing

The TO and TX arrangements are, like the tandem arrangement, applied to carry high axial loads in one direction. The additional third bearing is used as a counterstay and makes the multiple arrangement a fixed bearing.

Single row angular contact ball bearings have raceways that are offset in the bearing axis direction in the inner and outer ring and carry axial forces in only one direction. In case of a radial load, an axial force emerges in the bearing, and this force must be compensated by a counterforce. Angular contact ball bearings are not used as single bearings, because they carry emerging forces together. Consequently, these bearings are always arranged in pairs or as a bearing set based on mutual matching.

Nsk pdf

Product Features Reduces vibration levelsExtends bearing and seal lifeLess unscheduled downtimeLonger MTBF SPECIFICATIONS of the SHAFT HOG with Standard Fixtures... Shaft Diameters: 1/8" --- 20"Rod Height above coupling/shaft: 6.5" (Can be decreased to 5" with optional VRF-5 short rod or increased to 12" with optional VRF-12 long rod. For increased height, all the rods connect to one another for unlimited height)Width of Mounting Brackets: 7/8" (Can be decreased to 1/2" by using the optional Thin Magnetic Fixtures).     Report: Click here to view Laser Alignment Report Components: Click here to view Shaft Hog Components This item is currently not available - Call Accushim for updated status The ergonomically designed control unit fits comfortably in one hand. The live display means that you will get instant feedback when shimming or moving the machines. This eliminates the guesswork and back and forth you're suffering through now. All this at an affordable price that means a really quick payback. Accurate and Reliable The Shaft Hog features a unique "laser line" instead of the traditional laser dot. This makes setup and alignment much easier, as the line is wide and is easily projected to the laser detector. The Shaft Hog also features graduated labels on the laser heads, that work with the laser lines, to help the operator "visualize" the misalignment condition. This visual cue reinforces the digital values that are displayed on the unit, and makes evaluation and correction of misalignment an easier process. The alignment data is continuously updated. All movements of the motor are simultaneously displayed on the screen. The measurement results are displayed with a resolution of 0.0001". As you shim or move the machine the values update to let you know exactly where you are each step of the way. This means no more guessing about the shim amount, or how much to move a machine. With the Shaft Hog laser alignment system there is no interpreting of the values as with dial indicators. The position sensitive detectors precisely measure the misalignment. The large LCD display clearly presents the position of the machinery being aligned. The Complete Laser Alignment Tool The Shaft Hog comes with all the hardware and tools you need to begin doing laser alignments as soon as you open the carrying case. Sleek anodized aluminum chain brackets fit a wide range of shaft diameters (from approximately 1/8", and extra chain lengths can be added to accommodate virtually any shaft diameter). The transmitter-detector units are mounted on rods extending from each of the brackets. The transmitter-detector units are clearly labeled (one for the stationary machine, and the other for the movable machine). The cables and the display unit are also clearly marked, simplifying the set up. Once the transmitter-detector units are mounted they plug directly into the display box. The easy-to-use, ergonomically designed display fits right in your hand. Its intuitive design means you can step through an alignment as soon as you pick it up. The Shaft Hog has been designed to let you concentrate your skill and effort on performing precision alignments, not on figuring out how to use the tool. The Shaft Hog is powered with standard batteries (2 "C" cells). Approximately 24 hours of continuous operation are obtained from a fresh set of batteries. The system is delivered in a rugged case and includes all the equipment required for horizontal shaft alignments. Technical Data Measuring units   Housing material ABS plastic Type of laser Diode laser Laser wave length 670 - 675 nm Laser class 2 Maximum laser power 1 mW Maximum distance between measuring units 2.8 ft (850 mm) Type of detectors Single-axis PSD Cable length 5.2 ft (1.6 m) Dimensions 3.4 x 3.1 x 1.5 in (87 x 79 x 39 mm)     Display unit   Housing material ABS plastic Display type LCD 1.4 x 1.9 in (35 x 48 mm) Battery type 2 x 1.5V "C" Alkaline (LR14) Operating time 20 hours continuous operation Auto power off After 1 hour if no keys are pressed Displayed resolution 0.1 mil (0.0001"); (0.01 mm in metric mode) Dimensions 9.1 x 3.2 x 2.4 in (230 x 81 x 62 mm)     Complete System   Shaft diameter range with chain 20" maximum Accuracy of system <2% +/-0.00039 in Temperature range 32 - 140°F (0 - 60°C) Operating humidity Non-condensing Packaged Dimensions 20"L x 17"W x 10"H

Angular contact ball bearings can also be delivered with ceramic balls or ceramic coating to insulate against electric current passage up to 1000 V. SLF’s angular contact ball bearings are also delivered as ”LONGLIFE“ bearings upon request. Bearings of this design type have a higher fatigue limit than the standard bearing. Both bearing and packaging are marked “LONGLIFE“.

The reference speed is calculated according to ISO 15312 and is the speed at which, under defined reference conditions, a bearing operating temperature of +70 °C is achieved. It is not a speed limit for the application of a bearing but provides the basis to compare the speed suitability of different bearing types.

In single row angular contact ball bearings, the cage made of fiberglass-reinforced polyamide 66 is standard in the hole diameter range up to approx. 130 mm. For the use of the cage made of fiberglass-reinforced polyamide 66, the operating temperate is limited to 120 °C, and the same limitations as for the deep groove ball bearings are applicable. Cages made of brass (standard, if not using the cage made of fiberglass-reinforced polyamide 66), steel sheet or brass sheet can be delivered upon request.

This item is currently not available - Call Accushim for updated status The ergonomically designed control unit fits comfortably in one hand. The live display means that you will get instant feedback when shimming or moving the machines. This eliminates the guesswork and back and forth you're suffering through now. All this at an affordable price that means a really quick payback. Accurate and Reliable The Shaft Hog features a unique "laser line" instead of the traditional laser dot. This makes setup and alignment much easier, as the line is wide and is easily projected to the laser detector. The Shaft Hog also features graduated labels on the laser heads, that work with the laser lines, to help the operator "visualize" the misalignment condition. This visual cue reinforces the digital values that are displayed on the unit, and makes evaluation and correction of misalignment an easier process. The alignment data is continuously updated. All movements of the motor are simultaneously displayed on the screen. The measurement results are displayed with a resolution of 0.0001". As you shim or move the machine the values update to let you know exactly where you are each step of the way. This means no more guessing about the shim amount, or how much to move a machine. With the Shaft Hog laser alignment system there is no interpreting of the values as with dial indicators. The position sensitive detectors precisely measure the misalignment. The large LCD display clearly presents the position of the machinery being aligned. The Complete Laser Alignment Tool The Shaft Hog comes with all the hardware and tools you need to begin doing laser alignments as soon as you open the carrying case. Sleek anodized aluminum chain brackets fit a wide range of shaft diameters (from approximately 1/8", and extra chain lengths can be added to accommodate virtually any shaft diameter). The transmitter-detector units are mounted on rods extending from each of the brackets. The transmitter-detector units are clearly labeled (one for the stationary machine, and the other for the movable machine). The cables and the display unit are also clearly marked, simplifying the set up. Once the transmitter-detector units are mounted they plug directly into the display box. The easy-to-use, ergonomically designed display fits right in your hand. Its intuitive design means you can step through an alignment as soon as you pick it up. The Shaft Hog has been designed to let you concentrate your skill and effort on performing precision alignments, not on figuring out how to use the tool. The Shaft Hog is powered with standard batteries (2 "C" cells). Approximately 24 hours of continuous operation are obtained from a fresh set of batteries. The system is delivered in a rugged case and includes all the equipment required for horizontal shaft alignments. Technical Data Measuring units   Housing material ABS plastic Type of laser Diode laser Laser wave length 670 - 675 nm Laser class 2 Maximum laser power 1 mW Maximum distance between measuring units 2.8 ft (850 mm) Type of detectors Single-axis PSD Cable length 5.2 ft (1.6 m) Dimensions 3.4 x 3.1 x 1.5 in (87 x 79 x 39 mm)     Display unit   Housing material ABS plastic Display type LCD 1.4 x 1.9 in (35 x 48 mm) Battery type 2 x 1.5V "C" Alkaline (LR14) Operating time 20 hours continuous operation Auto power off After 1 hour if no keys are pressed Displayed resolution 0.1 mil (0.0001"); (0.01 mm in metric mode) Dimensions 9.1 x 3.2 x 2.4 in (230 x 81 x 62 mm)     Complete System   Shaft diameter range with chain 20" maximum Accuracy of system <2% +/-0.00039 in Temperature range 32 - 140°F (0 - 60°C) Operating humidity Non-condensing Packaged Dimensions 20"L x 17"W x 10"H

To avoid slippage between the contact partners, the angular contact ball bearings must be sufficiently loaded. A radial minimum load in the order of magnitude of

O and X arrangements are applied to carry axial loads in both directions or to carry high radial loads. In the O arrangement, the large faces of the outer rings are adjacent, whereas, in the X arrangement, the small-sized faces of the outer rings are adjacent. The O arrangement is a very stiff mounting, has greater support distance H than the X arrangement, and, as a result, higher tilting resistance.

NSK Spherical Roller bearing pdf

Cylindrical rollerbearings

SLF-angular contact ball bearings up to 240 mm outer diameter are standard stabilized in dimensions by S0, meaning that they are heat treated to make them usable up to a working temperature of 150 °C. At greater than 240 mm outer diameter, the angular contact ball bearings are standard stabilized in dimensions by S1, meaning that they are heat treated to make them usable up to a working temperature of 200 °C. However, as a rule, the maximum operating temperature is not limited by the dimensional stability of the bearing rings and balls. In many cases, it is limited by cage, seals or lubricant. Please find the relevant information in the corresponding chapters. If you feel uncertain or have specific questions regarding the temperature limits of our bearings, the SLF team is ready to support you.

Tandem arrangements, composed of two or three bearings, are used to carry high axial loads in one direction. Thus, high rigidity of the shaft mounting is reached. In tandem arrangements, each bearing carries an equal share of the axial load.

For statically loaded angular contact ball bearings, one must check not only nominal lifetime L (L10h) , but also the static load safety factor S0.

Single row angular contact ball bearings with universal design are intended for installation in pairs in X, O or tandem arrangement. In universal design, the raceways and lateral faces of the bearing’s inner and outer rings are matched so that arbitrary bearings of the same size and preload /clearance can immediately be mounted in the corresponding arrangements. We distinguish the following universal design types:

Axial clearance or zero-backlash do not apply to mounted/ installed and unloaded bearing pairs. In tight fits, axial clearance is diminished or preload of the bearing pair is increased.