Precision Tapered Roller Bearings

6.Design Principles: Adopt precise taper angle matching design of precision tapered rollers and conical raceways, with contact line extensions accurately intersecting at the bearing axis, realizing coordinated and efficient transmission of radial and axial loads; single-row models require paired (face-to-face/back-to-back) installation to form bidirectional precision positioning; double-row models integrate ±1°-2° micro-self-aligning capability through symmetrical roller layout, compensating for minor installation misalignment and shaft deflection, ensuring precision operational stability. Raceways undergo precision grinding + super-finishing (Ra≤0.02μm), and roller end faces are optimized to reduce friction loss and temperature rise, adapting to medium-high speed precision operation; reinforced material and structural design enhance deformation resistance, ensuring micron-level positioning accuracy. Performance Features: Ultra-High Precision Positioning: P4-class ultra-precision rotational accuracy, axial runout ≤0.003 mm, radial runout ≤0.002 mm, meeting micron-level positioning requirements of precision equipment. Core Combined Load Bearing: Precise taper angle matching, capable of simultaneously bearing radial and bidirectional axial loads; double-row models have a maximum radial load of up to 5000 KN, and single-row models have an axial load of 60%-80% of the radial load. High Rigidity & Deformation Resistance: Precision machining process + reinforced materials, deformation resistance increased by 50% compared with ordinary tapered roller bearings, ensuring stable operational accuracy under precision working conditions. Medium-High Speed Adaptability: Optimized cage design reduces the impact of centrifugal force, maximum speed up to 3000 rpm with grease lubrication and 4500 rpm with oil lubrication, meeting medium-high speed precision operation requirements. Long Service Life & Stability: Surface hardening treatment of GCr15SiMn material, super-finishing of rollers and raceways, fatigue life increased by 40% compared with conventional precision bearings, adapting to long-term continuous precision operation. Customization Options: Supports non-standard size (inner diameter/outer diameter/width) customization, precision class upgrade (P4/P5 class enhancement), corrosion-resistant material (SUS440C) customization, special lubrication solutions for high/low temperature,and cage material customization (titanium alloy/high-end composite materials).

Working Principle：Roller Arrangement and Load Distribution: Precision tapered rollers are precisely matched with the raceway cone angle, and the extended lines of the contact points accurately intersect at the bearing axis, forming a stable load transfer path. Radial load is evenly transmitted through the line contact between the rollers and the raceway, and axial load is efficiently transmitted to the inner and outer rings through the conical surface decomposition; the symmetrical roller arrangement of the double-row model further distributes the load, and the micro-self-aligning function is achieved through the slight sliding of the rollers along the spherical raceway, compensating for slight installation eccentricity; the cage guides the rollers for orderly and smooth movement, reducing friction interference and vibration, and ensuring precise operational stability. - Thermal Management: Ultra-fine polishing of the raceway and rollers + low-friction cage design reduces friction loss and effectively controls the operating temperature rise (typical temperature rise ≤ 12°C); coupled with the thermal stability of precision special grease or circulating oil, it ensures the thermal stability of the equipment under medium-high speed and precision working conditions. Installation and Adaptation: The inner and outer rings are precisely interference-fitted with the shaft and housing (shaft h6/housing bore H7), compatible with the assembly tolerance requirements of most precision industrial equipment; single-row models are installed in pairs (face-to-face/back-to-back) to achieve bidirectional axial precision load bearing, while double-row models can be installed directly; the micro-self-aligning function reduces the requirements for the parallelism of the mounting base surface, simplifying the precision assembly process.