The L 68149/111 tapered roller bearings, belonging to the single-row category, are precision-engineered components designed to handle radial and axial loads in a wide range of industrial applications. These bearings feature a tapered design that allows for even distribution of load across the rollers, resulting in increased bearing capacity and longer service life.

The L 68149/111 tapered roller bearings are typically used in automotive, construction, mining, and heavy-duty machinery industries where high loads and precision are crucial. The single-row configuration ensures compact design and easy installation while maintaining the necessary strength and stability.

These bearings are manufactured from high-quality materials that provide excellent wear resistance, durability, and corrosion protection. The rollers and raceways are precisely ground to ensure smooth operation and reduced friction, which further enhances the bearing's performance and efficiency.

Overall, the L 68149/111 tapered roller bearings, single-row, offer a reliable and cost-effective solution for demanding applications that require precision, strength, and durability.

L 68149/111 Tapered roller bearings, single row, Dimension series 25500

 
Browse Part Number L68149 - L68111, Tapered Roller Bearings - TS (Tapered Single) Imperial in The China Company catalog including Part Number, Item Name, Description, Series, Cone Part Number, Cup Part Number, Design Units,d - Bore, D - Cup Outer Diame
 
Tapered roller bearings, single row, Shop deep groove ball bearings. Our bearings are designed to run quiet, handle high speeds, and have plain bearings with premium lubricants. Our Bearing Online Website: https://www.bearingface.com
Tapered roller bearings, single row
 

Dimensions

 
single row tapered roller bearings are designed to accommodate combined loads, i.e. simultaneously acting radial and axial loads. The projection lines of the raceways meet at a common point on the bearing axis to provide a true rolling action and therefore low frictional moments during operation. The axial load carrying capacity of tapered roller bearings increases with increasing contact angle α. The size of the contact angle.
 
Single-row conical bearings are demountable, the inner ring with a cage and roller elements and the outer ring are assembled separately. They are manufactured in multiple series. They feature high rigidity, low friction and the ability to transmit high radial and single-direction axial load.
The intensity of the axial load transmitted depends on the size of the contact angle. Through suitable arrangement of a couple of bearings, dual axial load-carrying capacity can be achieved.
 
The single-row conical bearings are manufactured both in metric and inch dimensions.
The bearings are manufactured with normal accuracy, for seating more demanding in terms of accuracy, or seating with higher rpm frequency, bearings with higher running accuracy are used.
 

Abutment Dimensions

Calculation Data

 
Single row tapered roller bearings feature angular raceways of inner and outer ring and a resulting force-transferring contact angle. Due to this, an axial load always induces a radial load and the other way around, which is why tapered roller bearings are always combined with a second bearing. Paired, they can in addition to radial forces also absorb axial and combined forces and are particularly suitable for medium to high speeds. Single row tapered roller bearings can be disassembled which facilitates a separate assembly of inner and outer ring.
 

Standards

 
The general dimensions of the single row tapered roller bearings are standardised by ISO 355 (Tapered roller bearings - Boundary dimensions and series designations) and DIN 720 (Rolling Bearings - Tapered roller bearings). Inch bearings conform to ANSI/ABMA Standard 19.2 (Tapered Roller Bearings - Radial Inch Design).
 

Speed

viiplus distinguishes between kinematic limiting speed nG and thermal reference speed nth. The kinematic limiting speed is a practical mechanical limit value and is based on the mechanical fatigue strength of the rolling bearing as a function of its installation situation and lubrication. The limit speed must not be exceeded even under optimum operating conditions without prior consultation with KRW.
The thermal reference speed represents the equilibrium between the heat generated in the bearing by friction and the heat flow dissipated. It is standardised in DIN ISO 15312 (Rolling bearings - Thermal reference speed).
 

Compensation of Angular Misalignments

 
Single row tapered roller bearings are of limited suitability for compensation of misalignments. The admissible misalignment between inner and outer ring depends on the bearing size, the internal bearing design, the clearance fit, and the acting of forces and moments. Misalignments cause harmful movement of the rolling elements and produce additional stresses in the bearing which reduce its operating life.