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Thrust Cylindrical Roller Bearing

TIMKEN Brand Thrust Cylindrical Roller Bearing

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Thrust Cylindrical Roller Bearing FAQS

QWhat is Cylindrical Roller?

AAll cylindrical roller bearing configurations (except RAA) provide precision control of the rollers for operation over a wide range of speeds with precision-ground, double-ribbed guide flanges on one ring. These roller bearings are found in turbine engine mainshaft, transmission and gearbox applications with high radial loads. Size range: 22 mm to 300 mm OD (special designs up to 600 mm are available) Design Attributes: RF and RJ configurations are designed for applications requiring axial position control or limited thrust capabilities in one direction. For applications operating at higher loads and speeds, the RJ configuration is designed for easier lubrication with an oil jet onto the inner race. Types RU and RN are full-floating configurations that allow limited axial motion during operation. RN is less prone to slip or skid under lighter loads or varying loads at high speeds. RU is easier to lubricate under heavier loads. Types RUS and RNH bearings are used in integral designs where the rollers run directly on a hardened and ground shaft or housing. Performance characteristics are similar to RU and RN. The RAA configuration has single-ribbed inner and outer rings and performs under low speeds or oscillating conditions. It has high guide flanges to accept some thrust in one direction. Applications: Turbine engine mainshafts Transmissions Gearboxes

QWhat is Ball?

ATimken’s ball bearings for aerospace applications are specifically designed to withstand radial, thrust, moment, reversible thrust or combination loads. Our offering includes two Conrad configurations (types HK and HD) and two angular contact configurations (types HA and HT). Bearings may be supplied as single units or in preloaded sets. Size range: 10mm to 600 mm OD Design Attributes: HK series is designed to handle heavy loads and has high-strength Conrad separator options that can manage severe loads and speeds. HD series features an innovative fractured outer ring design that allows for maximum ball complement in a radial deep-groove bearing. This provides significant improvements in dynamic load capacity and predicted service life. HA series has a non-separable design with counter-bored outer rings and one-piece, high strength separators. Ideal for preloaded and/or thrust-type applications. Options include deep-groove outer and relieved inner races for ultra-high-speed applications. HT series is a high-performance line featuring full deep-groove outer rings, one-piece, high strength separators and two extra-deep-groove inner ring halves. Ideal for use on high-speed shafts with reversing thrust loads. Applications: Turbine engines and transmissions for aerospace applications

QWhat is Cross Roller (XR) Taper Rollers?

APrecision crossed roller bearings (TXR) are designed to offer the highest levels of rotational accuracy and rigidity while conserving space and saving material costs. The bearing features two sets of races and rollers brought together at right angles with alternate rollers facing in opposite directions. This allows two half-rows of rollers to fit into the space of one. The steep-angle, tapered geometry results in a total effective bearing spread much greater than the width of the bearing itself. Able to withstand high overturning moments, the crossed roller bearing is ideal for the table bearing of machine tools, including vertical boring and grinding machines. It is uniquely suited to many other pivot and pedestal applications where space is limited or the lowest possible center of gravity of a rotating mass is required. Size range: ID 203.200 mm to 2463.800 mm (8.000 in. to 97.000 in.) OD 279.400 mm to 2819.400 mm (11.000 in. to 111.000 in.) Design Attributes: Provides benefits of two-row bearings in single-row space. Withstands high overturning moments. Combines the compactness of a single-row bearing with the stability of a two-row bearing. Applications: Vertical boring mills Vertical grinding machines Other machine tools

QWhat is Precision Cylindrical Roller Bearings for Machine Tool?

AOur precision cylindrical roller bearings for screw drives feature a combination of axial cylindrical rollers and radial needle rollers. This unique configuration helps manage loads from multiple directions during highspeed operation. Several designs are available to accommodate varying screw drive designs. For applications where rotational accuracy, consistency and rigidity are critical, Timken has the solution – Timken® precision cylindrical roller bearings for rotary tables, indexing and vertical mill heads. Precision Cylindrical Roller Bearings for Rotary Tables We incorporate our engineering expertise into every product to enhance performance and productivity. Our precision cylindrical roller bearings for rotary tables are no exception. When rotational accuracy, consistency and rigidity in rotary tables are critical, Timken precision cylindrical roller bearings become the obvious solution. For applications where rotational accuracy, consistency and rigidity are critical, Timken has the solution – Timken® precision cylindrical roller bearings for rotary tables, indexing and vertical mill heads. Timken’s precision cylindrical roller bearings feature an integrated design that includes an L-shaped inner ring, shaft washer, outer ring, two thrust roller cage assemblies and a radial full complement row. The result? An easy-to-install unit that can manage loads from multiple directions. Superior running accuracy, lower operating temperature and reduced noise through P4 precision class. Product Details Greater load-carrying capacity and better bearing stiffness control, thanks to closely controlled preload Oil lubrication standard, with grease lubrication available Potential for increased axial stiffness with an optional thrust washer Bore sizes ranging from 80mm (3.149 in.) to 460mm (18.110 in)

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Thrust Cylindrical Roller Bearing

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Thrust Roller Bearing

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