Double Adjustable Roller

These bearings are doublerow, full complement with a low cross sectional height designed for use in sheaves. There are two types, sealed and shield type. They can withstand heavy radial loads and shock loads at comparatively lowspeed rotations, and can also withstand axial loads. It is easy to fix them axially to sheaves using the stop rings of the outer ring. The width of the inner ring is designed to be larger than that of the outer ring, so they require no spacer between sheaves. The structure is stable because the doublerow of rollers can withstand the moment loads caused by rope transition. The surfaces of these bearings are also treated to provide high corrosion resistance.

The new designed rotary swivel unit RT2A is the ideal solution for retrofitting your machine with a 4th and 5th axis. It is based on the proven and robust rotary tables of the RT2A series. The design is kept very compact to ensure the best possible use of space with high load capacity. The rotary tables are equipped with an integrated precision roller bearing, which ensures high torque capacity, radial and axial run-out accuracy. The rotary swivel unit RT2A is available in the size variants RT2A150/200 and RT2A100/150. Various stepper or servo motors can be used as drives. In addition, various types of end or reference point switches are available. The swivel range of the swivel axis can be individually defined, the rotary axis can be rotated without limit. Thus the RT2A rotary swivel unit combines all the advantages of a field-proven standard product with the flexibility of a special version.

These precision slideways with roller bearings are used in machine and fixture construction, metrology, optical instruments and precision mechanics. The scale division on the micrometer dial is 0.02 mm. The stated permissible load values (F) are designed for a service life of 1 million travel cycles. The torque values apply only to centred slides. An additional centring hole is located at holes D2 and D3 on the top of the slide. Other connecting elements can be precisely mounted on the slide in combination with our centring rings 20240. F = permissible loading for dynamic and static loads. TI E/E1 = number of fastening holes E/E1/M inside. TA E/E1 = number of fastening holes E/E1/M outside. TI E4 = number of fastening holes E4/D1 inside. TA E2 = number of fastening holes E2/D1 outside.

A roller with a solid shaft as standard, hollow shaft as option Bearing seats formed as an integral part of the shell, the opposing bearings are therefore accurately aligned The formed bearing holders improve bearing performance leading to lower failure rates Dimensions: Roller diameters 152 – 219 mm (6” to 8-5/8”) Shaft diameters up to 62 mm (2-1/2”) Bearings 6306, 6308, 6310, 6312