INA ZS2141 Thrust Roller Bearing Center Washer - 21mm ID - 41mm OD - 6mm
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- Dimensional and geometrical tolerances: DIN 620, tolerance class PN
- Boundary dimensions: DIN 616/ ISO 104
- Through-hardened steel: ISO 683-17
- Housing bore tolerance (when used as a housing washer): H7
- Shaft bore tolerance (when used as a shaft washer): h6
- System for creating part numbers for rolling bearings: DIN 623-1
This INA ZS-series axial roller bearing center washer is designed for use as a central washer in a double-direction axial roller bearing combination with two AXK-series axial needle roller and cage assemblies and two axial bearing washers. The center washer typically serves as a raceway and spacer between the two roller and cage assemblies, and it can be mounted on the shaft as a shaft washer or in the housing as a housing washer. The raceway, bore diameter, and outside diameter are precision machined for tighter tolerances than unground surfaces. The washer is made of low alloy, through-hardened chromium steel for durability, heat tolerance, and resistance to deformity under heavy loads, and it can be used at operating temperatures from -20 degrees C to 120 C (-4 degrees F to 248 F). This center washer is suitable for use in various applications including machine tool drive shafts, automotive steering gears and clutches, rotary tables, outboard motor propellers, and household appliances.
Dimensional and geometrical tolerances DIN 620, tolerance class PN Boundary dimensions DIN 616/ ISO 104 Through-hardened steel ISO 683-17 Housing bore tolerance (when used as a housing washer) H7 Shaft bore tolerance (when used as a shaft washer) h6 System for creating part numbers for rolling bearings DIN 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.
The Schaeffler Group s INA brand manufactures rolling bearings, plain bearings, and linear guides for the automotive industry. The company, founded in 1946, is headquartered in Herzogenaurach, Germany, and meets International Organization for Standardization (ISO) and Deutsches Institut f r Normung (DIN) standards for quality assurance.
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