BALL RUNNER BLOCK CARBON STEEL R165332320 KWD-035-FLS-C2-H-1

FAQ:

1. What is the actual clearance value range corresponding to the C2 preload of R165332320?

Class C2 preload for R165332320 has no published direct clearance range:

1. Level C2 is Bosch Rexroth’s medium preload (0.08C, about 5336N). The slider and the guide rail fit without gaps and show slight interference.
2. With reference to similar products, it is estimated that the interference amount (gap compensation amount) is about 5-10μm, which meets the stiffness requirements of precision transmission.
3. The precise value must be consulted in the official technical manual, and must be confirmed with the accuracy of the matching guide rail.

2.What are the requirements for bolt torque when installing R165332320?

R165332320 does not have a separately marked exclusive bolt torque value, but the torque requirements can be determined based on its mounting bolt specifications and the general standards of Bosch Rexroth guide rail systems, as follows:

1. Clarify the specifications of the adapting bolts: From the public parameters of this model of slider, it can be seen that the mounting thread specification is S2 M10, which means it is suitable for the mounting bolts of M10 specification. This is the core basis for determining the torque.
2. Refer to the brand’s universal torque standard: Bosch Rexroth’s tightening torque for ball rail guide systems is set based on the bolt strength grade (common grades 8.8, 10.9, and 12.9). Combined with the installation specifications of the same series of 35mm sliders, when used with M10 bolts, priority is given to grade 8.8 high-strength bolts.
3. Determine the specific torque range: Combined with the industry’s common high-strength bolt torque standards, the conventional tightening torque range for grade 8.8 M10 bolts is 56 – 66.5Nm; for grade 10.9 M10 bolts, the torque range is 80 – 94.8Nm. Considering that the slider is used in precision transmission scenarios, it is recommended to take the middle value of the corresponding grade torque range to avoid looseness caused by too small a torque, or damage to the preload and mounting surface accuracy of the slider if the torque is too large.

During installation, tightening must be performed step by step in diagonal order, and the torque wrench used must be calibrated in advance, with the accuracy error controlled within ±5% to ensure that each bolt is stressed evenly.

3.What is the load rating of the R165332320 slider?

The rated load and supporting rated moment parameters of the R165332320 slider are clear, as follows:

1. Basic rated load: The basic rated dynamic load is 66700N. This parameter corresponds to the bearing capacity of the slider that can still work stably under 1 million rotations of travel, which is suitable for heavy-load transmission scenarios; the basic rated static load is 116000N, which represents the maximum load that the slider can withstand when it is stationary or slowly rotating, which can avoid permanent deformation caused by long-term static pressure.
2. Supporting rated moment: In addition to the linear direction load, its rated moment parameters are also clearly marked, among which the dynamic rated moment Mt is 1440Nm, the static rated moment Mt0 is 2500Nm; the lateral dynamic rated moment Ml is 1290Nm, and the lateral static rated moment Ml0 is 2240Nm. These parameters ensure the structural stability of the slider when it bears torsion or lateral force.