Medium size single row crossed cylindrical roller slewing bearings are compact, with strong, full-size rings. Depending on the size, they are available with two different fixed cross-sections within each of the three series.
To simplify installation, the inner and outer rings have a standardized number of equally spaced holes for attachment bolts.
Medium size crossed cylindrical roller slewing bearings feature a unique and cost-effective combination of load-carrying ability, stiffness, and speed capability. These features open a wide application field for medium size crossed cylindrical roller slewing bearings. Typical applications include, but are not limited to, earthmoving, construction and material handling equipment as well as robotics.
The standard single row medium size crossed roller slewing bearings with a mean raceway diameter ranging from 414 to 1 904 mm and are available with any of the following gear configurations:
• with an external gear QRKS. 161 series
• with an internal gear QRKS. 162 series
• without a gear QRKS. 160 series
Light series single-row four-point contact ball slewing bearings have a thin and fixed cross-section, irrespective of the inner or outer diameter. The inner and outer rings have a standardized number of equally spaced holes for attachment bolts, to simplify installation.
These lightweight general-purpose slewing bearings provide a cost-effective solution for light to medium-duty arrangements, which do not require high precision. Examples include: aerial work platforms, robotics, industrial positioners, turntables and some material handling equipment.
Light series single-row four-point contact ball slewing bearings with a mean raceway diameter ranging from 411 to 1091 mm and are available with any of the following gear configurations:
• an external gear QRKS.21 series
• an internal gear QRKS.22 series
• without a gear QRKS.23 series
QIBR manufactures single-row four-point contact ball slewing bearings in a variety of executions and sizes to meet the needs of
particular applications.
The customized single-row four-point contact ball slewing bearings include bearings with a mean raceway diameter ranging from 179 to
1258 mm and are available with any of the following gear configurations or options:
• an external gear
• without a gear
• with or without centring recesses
QIBR manufactures single row crossed cylindrical roller slewing bearings in a variety of executions and sizes to meet the needs of
particular applications.
The customized single row crossed cylindrical roller slewing bearings with a mean raceway diameter ranging from 310 to 2 200 mm and are available with any of the following gear configurations or options:
• with an external gear
• with an internal gear
• without a gear
• with or without centring recesses
Medium-size single row four-point contact ball slewing bearings have a strong, full-size gearless ring. Depending on their size, they are available with two different fixed cross-sections within the series. The inner and outer rings have a standardized number of equally spaced holes for attachment bolts, to simplify installation.
QIBR medium size single row four-point contact ball slewing bearings feature a unique combination of load-carrying ability and speed capability and provide a cost-effective solution for light to medium-duty arrangements that do not require high precision. Typical applications include, but are not limited to, tower cranes, mobile cranes, lifting platforms and construction or material handling equipment.
The QIBR medium size single row four-point contact ball slewing bearings with a mean raceway diameter ranging from 414 to 1904 mm and are available with any of the following gear configurations:
• an external gear QRKS.061 series
• an internal gear QRKS.062 series
• without a gear QRKS.060 series