Note that sealed self aligning bearings have a lower. Doublerow angular contact ball bearings radial ball. This skf explorer 33 a series double row angular contact ball bearing is double sealed, and has a 30degree contact angle, sheet steel cage, c3 clearance rating, and p6 precision rating. Bearing 30bd5222 kbs 30x52x22 double row angular contact. Double row angular contact ball bearing for air conditioner 30bd5222 brand. The use of snap cages reduces straddle between the rows and allows for improvements in spacing and increased load carrying capacity without increased outer dimensions of the bearing. The double row, tandem, angular contact ball bearing assembly uses snap cages for both rows of ball bearings. An axial offset between the outer races can be defined additionally, if some additional pretension is. Doublerow angular contact ball bearings can support axial loads in both directions and high radial loads. Mounting of angular contact ball bearings and tapered. Double row angular contact ball bearings 1smallest allowable dimension for chamfer dimension r. Mesys rolling bearing calculation introduction this rolling bearing calculation version 042017, file version 3. Double row, angular contact ball bearings general overview.
The two rows are so related that the contact angle is similar to a pair of backtoback single row bearings. Doublerow angular contact ball bearings have a steep mounting, which also. With inside diameter sizes ranging from 2mm to 150mm, we also offer a wide range of material, closure, internal clearance, cage design and lubricant options. Please follow this link for a detailed description of our products. Double row angular contact ball bearings xlife quality schaeffler. Us20120308172a1 double row, tandem, angular contact, ball. Angular contact ball bearings and tapered roller bearings are adjusted against each. Because fewer balls can be inserted per row compared to singlerow angular contact ball bearings, a doublerow angular contact ball bearing will have less load capacity than an equivalent sizeseries backtoback set of two singlerow angular contact ball bearings.
Insert bearings y bearings angular contact ball bearings. The inner and outer rings are offset to each other and the bearings are particularly suitable for carrying combined radial and axial loads. They have made an appreciable contribution to the achievement of more compact weightsaving designs, simplified assembly and enhanced reliability. Bearing pdf datasheets available for download and links to cad data. Double row axial angular contact ball bearings standard bearings and heavy series zklf. For a double row angular contact bearings also the bearing type angular contact bearing double row could be used, but the bearing configuration also works for other configurations. Double row angular contact ball bearings this type bearings is made in two contact angle levels as shown in table 4. We edited this rolling bearing catalog to reflect the growing number of nsk products, new. Nsk range of angular contact ball bearings include. Designed to take both radial and thrust loading, angular contact ball bearings are commonly used in pumps, compressors. It supports radial loads, thrust loads in both directions, and combined loads, and occupies less axial space than a pair of singlerow angular contact ball. Some sizes of double row angular contact ball bearing are available with contact seals 2ns or shields zz.
Double row angular contact ball bearings features double row angular contact ball bearings are units with solid inner and outer rings and ball and cage assemblies with polyamide or sheet steel cages. Double row angular contact ball bearings filling slot ddbr s min c r c or c r c or double row angular contact ball bearings filling slot ddbr s min c r c or c r c or 41 30 14. It supports radial loads, thrust loads in both directions, and combined loads, and occupies less axial space than a pair of single row angular contact ball. For hub 1, nsk uses proprietary bearing type designations such as bwd for ball bearings and kwd for tapered roller bearings. Doublerow angular contact ball bearing excellent axial and radial rigidity d in confined space. Sealed bearings are maintenancefree and therefore allow particularly economical. Bearings catalogs and cad drawings services nsk global.
Deep groove bearings are further identified as single or double row, and conrad type or filling slot type. Their construction is similar to a pair of single row angular contact ball bearings in an o arrangement, but they are narrower to a certain extent. Skf 3304 a2rs1c3 medium series ball bearing, double row. Angular contact ball bearings angular contact ball bearings support both radial and axial loads through asymmetric races that house the bearing s spherical rolling elements, also called bearing balls, on an angle. Matched angular contact ball bearings the types and features of matched angular contact ball bearings are shown in table 2. Double row angular contact bearing online bearings. Single row angular contact ball bearing suited to work in lower operating temperature and high speed with a heavy thrust load. Because of their design, when a radial load is applied, an axial force component is produced. Advantages of doublerow bearings as compared to singlerow include that they can bear radial and axial loads in both directions. This means that they are designed to accommodate combined loads, i. Fags daseries doublerow angular contact ball bearings with split inner ring part number brass cage dimensions millimeters basic load ratings bore od width cr n c0r n 3306dama 30 72 30.
Angular contact ball bearings are typically used in vertical pump motors and verticalhorizontal pumps. These bearings have a heavy axial load carrying capacity as well as the ability to accommodate high speeds. Ball bearing types the three most commonly used types of ball bearings are the radial bearing, the angular contact bearing, and the double row ball bearing. Shield type seal type with snap ring groove with snap ring. Double row angular contact ball bearings have two rows of balls arranged backtoback. Nsk rolling bearing rolling bearings angular contact ball bearings double row angular ball bearings 3d cad models. Load ratingskn speed ratingsrpm masskg d b r1,r2 min dyn cr stat cor grease oil 3316 80 170 68. The lines of action of the load at the contact between balls and raceways load lines diverge at the bearing axis and form an angle of 30 to the radial plane. Doublerow angular ball bearings nsk rolling bearing free. Double row angular contact ball bearings 3917b youtube. Double row angular contact ball bearings have a steep mounting, which also can bear tilting effects. This skf 33 a series doublerow angular contact ball bearing is doublesealed, and has a 30degree contact angle, lithium grease, reinforced polyamide cage, and normal clearance rating.
Ntns 5200 and 5300 series offer continuous races and can carry thrust loads in either direction. Angular contact ball bearings by fag schaeffler germany. Established in 1995, zxb bearing specializes in the production of precision single, double row and angular contact ball bearings. Us5501530a doublerow ball bearing of angular type for. Double row angular contact ball bearings are units with solid inner and outer rings and ball and cage assemblies with polyamide, brass or sheetsteel cages. The axial load carrying capacity of angular contact ball bearings increase with the increase of contact angle. The hub 1 nsk wheel bearings units are double row angular contact ball bearings bwd and double row tapered roller bearings. Doublerow conrad bearings can accommodate thrust in both directions. Deep groove bearings are further identified as single or. Their constructi on is similar to a pair of single row angular contact ball bearings in an o arrangement but they are narrower to a certain extent. The construction of this ball bearing is similar to mounting two single row angular ball bearings back to backdb. Capacities of double row ball bearing is less than single row since few balls can be inserted per row.
Skf angular contact ball bearings your key to longer service life. Angular contact ball bearings single row design for. Doublerow angular contact ball bearings from fag for the most demanding highload, hightemperature applications. Double row angular contact ball bearingskml bearings. Bearings exposed to vibrations at low speed, are mounted free from clearance or even with preload, othe rwise there is a risk that the rolling elements will impact against the roller raceways. A double row angular contact ball bearing can take a bidirectional axial load in addition to a radial. Skf 3303 a2rs1tn9mt33 double row ball bearing, converging. The deeper the angle between the bearing and its axis, the greater the axial load the bearing can carry. Ball bearings are also known as deepgroove single row or conrad bearings. This skf 33 a series double row angular contact ball bearing is double sealed, and has a 30degree contact angle, lithium grease, reinforced polyamide cage, and normal clearance rating.
Double row angular contact ball bearingsautomotive bearings. Doublerow angular contact ball bearings bore diameter. Doublerow angular contact ball bearings nachifujikoshi. Angular contact ball bearings angular contact ball bearings support both radial and axial loads through asymmetric races that house the bearings spherical rolling elements, also called bearing balls, on an angle. This bearing type can sustain radial, moment and bidirectional axial loads. Angular contact ball bearings can be mounted back to back, face to face or tandem allowing for a controlled preload and clearance. They are selected according to sustained axial and moment load. A doublerow, angulartype ball bearing for a wheel has a groove radius relationship such that the groove radius r6a of the outerring raceway 6a on the widthwise outer side with reference to the vehicle is larger than the groove radius r6b of the outerring raceway 6b on the widthwise inner side with reference to the vehicle r6ar6b, and has a shoulder section formed in the first outer. Doublerow angular contact ball bearings are units with solid inner and outer rings and ball and cage assemblies with polyamide, brass or sheetsteel cages. The contact angle between balls and raceways load lines diverge at the bearing axis and form an angle of 30 to the radial plane. Radial angular contact bearings axial angular contact bearings double row radial angular contact bearings double row axial angular contact bearings single row spherical ball bearings double row spherical ball bearings fourpoint ball bearings considered as radial bearings fourpoint ball bearings considered as. Angular contact ball bearings an overview sciencedirect. Double row angular contact bearings online shopping by vxb bearings the online bearing store and supplier, wholesale prices and same day shipping, next day air shipping available.
Single row angular contact ball bearings can carry axial load acting in one direction only. Angular contact ball bearings ball bearings products. Btw 100 ctn9sp, to meet these operational requirements. Cylindrical roller bearing with ribs nh, nup types. Skf angular contact ball bearings your key to longer. Hub bearing units hbu for the automotive industry are based on double row angular contact ball bearings fig. Doublerow angular contact ball bearings this is basically a backtoback mounting of two singlerow angular contact ball bearings, but their inner and outer rings are each integrated into one. The inner ring is typically fastened to the rotating shaft and the groove on the outer diameter provides a circular ball. Double row angular contact ball bearings 87 mrc bearing numbers prior to 1983 superseded by bearing numbers of mrc double row ball bearings produced before 1983 differ from the c and mtypes listed in this catalog. Singlerow angular contact ball bearing suited to work in lower operating temperature and high speed with a heavy thrust load. Bearings other than the fixedend one must be free end bearings.
The sealing system of double row angular contact ball bearings prevents the ingress. Insert bearings ybearings angular contact ball bearings. The radial ball bearing is designed to accommodate primarily radial loads but the deep groove type will support bidirectional thrust loads up to 35% of. Skf 3212 a angular contact ball bearings double row. Deep groove ball bearing, radial angular contact bearing, fourpoint ball bearing and radial cylindrical roller bearings. Specific geometry of angular contact bearing raceways and shoulders creates ball contact angles that support higher. Since then, time certainly hasnt stood still, and neither has skf. Double row angular contact ball bearings lily bearing. Advantages of double row bearings as compared to single row include that they can bear radial and axial loads in both directions. Mounting of angular contact ball bearings and tapered roller. Double row angular contact ball bearings have an inner and outer ring with a double raceway. Double row angular contact ball bearings this is basically a backtoback mounting of two single row angular contact ball bearings, but their inner and outer rings are each integrated into one. Their construction is similar to a pair of singlerow angular contact ball bearings in an o arrangement, but they are narrower to.
Us20120308172a1 double row, tandem, angular contact. Kml products are widely used in automobile,motorcycle,appliances,agricultural machinery,medicine,food and beverage processing,mining,energy,engineering,industries etc. Click here to go to our online catalog and product specifier for double row angular contact bearings including free cad downloads. Doublerow angular contact ball bearings midpoint bearing. Axial loads in both directions can be sustained, and the capacity to sustain moments is good. Double row angular contact ball bearing excellent axial and radial rigidity d in confined space. Nsk ball bearings can be categorized as deep groove bearings or angular contact bearings. Nsk bearing catalog online nsk products nodes bearing. Double row angular contact ball bearings ast bearings. This allows higher axial loads to be supported in one direction only. Superprecision double direction angular contact thrust ball bearings. The bearni gs are sealed on both sdi es with gap seals and are greased for life for the majority of applcati ions. A double row, angular type ball bearing for a wheel has a groove radius relationship such that the groove radius r6a of the outerring raceway 6a on the widthwise outer side with reference to the vehicle is larger than the groove radius r6b of the outerring raceway 6b on the widthwise inner side with reference to the vehicle r6ar6b, and has a shoulder section formed in the first outerring.
In many applications, angular contact ball bearings in pairs or mutiarrangement should be used. Shown below is the interchange of pre1983 bearing numbers with the c and mtypes. Angular contact ball bearings have raceways in the inner and outer rings that are displaced with respect to each other in the direction of the bearing axis. In angular contact ball bearings the line of action of the load, at the contacts between balls and raceways, forms an angle with the bearings axis. Double row angular contact ball bearings 52,53 ntn global.