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SKF 51109 Single Direction Thrust Bearing, 3 Piece, Grooved Race, 90° Contact Angle, ABEC 1 Precision, Open, Steel Cage, 45mm Bore, 65mm OD, 14mm Width, 12800lbf Static Load Capacity, 5440lbf Dynamic Load Capacity

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ASIN B007VHGPC2

Specifications for this item
Number of Items
1
Overall Width
14  millimeters
Bore Diameter
45  millimeters
Part Number
51109
Outside Diameter
65  millimeters
Brand Name
SKF
Static Load Capacity
12800  pounds
UNSPSC Code
31171552
Dynamic Load Capacity
5440  pounds

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Key Features

  • Single direction, deep-groove thrust ball bearing for applications that support heavy axial loads in one direction
  • Open bearing for lubrication applied in place
  • Through-hardened chromium steel for durability and resistance to deformity under heavy loads
  • Pressed sheet steel retainer evenly spaces rollers for reduced friction, vibration, and noise
  • Grooved raceways for higher speeds and thrust-bearing capacity than flat washers

Package Details

Shipping Weight: 0.35 pounds
Package Size: 3.1 x 2.7 x 0.9 inches

Product Description

This SKF single-direction, three-piece thrust ball bearing has an Annular Bearing Engineers’ Committee (ABEC)-1 precision rating, grooved races, a 90-degree contact angle, a pressed steel cage, and an open construction. It is suitable for moderate-speed applications that support heavy axial loads in one direction and no radial loads. This deep-groove thrust ball bearing has a three-piece construction with a housing locating washer (ring), a shaft locating washer, and a ball and cage assembly. The washers have grooved raceways that conform to the balls rotating between them, allowing higher speeds and thrust bearing capacity than bearings with flat raceways. The single-row design supports thrust loads in a single direction and tolerates axial deflection, and the open construction allows for the bearing to be lubricated in place. This bearing has a 90-degree contact angle in which the ball and inner and outer raceway contact points are on a plane parallel to the axial load, which enables the bearing to receive high axial force. The balls and washers are made of a low-alloy, through-hardened chromium steel for durability, heat tolerance, and resistance to deformity under heavy loads, and the pressed sheet steel cage prevents the balls from coming into contact with each other during use, reducing friction, vibration, and noise. This bearing is separable so it mounts more easily than nonseparable bearings because its components can be installed independently. It can be used at operating temperatures from -34 degrees C to 125 C (-30 degrees F to 257 F), and it has an ABEC-1 rating for tight dimensional tolerance, making it useful in applications that require high accuracy and increased operating efficiency. This thrust ball bearing is suitable for applications including machine tool drive shafts, automotive steering gears and clutches, rotary tables, outboard motor propellers, and household appliances.

Specifications

Main bearing dimensionsISO 104:2002
Basic dynamic load ratingsDIN ISO 281
Dimensional and geometric tolerancesISO 199:1997, tolerance class PN
Through-hardening steel for inner and outer rings and rollersISO 683-17
Pressed sheet steel for cage(DIN) EN 10111:1998
Load carrying capacity and lifeISO 281:1990
System for creating part numbers for rolling bearingsDIN 623-1

Rolling bearings use rolling elements to maintain the separation between moving parts to reduce rotational friction and support radial and axial loads. These elements can be one of the following types: ball, cylindrical, spherical, barrel, needle, spindle, or tapered. All rolling bearings are open, shielded, or sealed. Sealed bearings are lubricated with oil or grease in the bearing factory, while open and shielded bearings are meant to be lubricated in place, with periodic reapplication of lubrication, based on use. The shield protects the working parts of the bearing from environmental debris that may be introduced and could reduce the ball bearing speed and lifespan. Rolling bearings are used in a range of applications from agricultural machinery to conveying equipment, robotics, dental equipment, elevators, rolling mills, ship rudder shafts, and aggregate crushers, among others.

SKF Group manufactures bearings and units, seals, mechatronics, and lubrication systems that meet International Organization for Standardization (ISO) 14001 and 9001, and Occupational Health and Safety Assessment Series (OHSAS) 18001 standards for quality assurance. The company, founded in 1907, is headquartered in Göteborg, Sweden.

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