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R151211075 Rexroth High-precision Ball Nut Adjustable Preload Ball Screw Nut
R151211075 Rexroth High-precision Ball Nut Adjustable Preload Ball Screw Nut
R151211075 Rexroth High-precision Ball Nut Adjustable Preload Ball Screw Nut
R151211075 Rexroth High-precision Ball Nut Adjustable Preload Ball Screw Nut

R151211075 Rexroth High-precision Ball Nut Adjustable Preload Ball Screw Nut

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R151211075 Rexroth Standard Series Nut, SEM-E-C Adjustable Zero Backlash, Single Nut, Standard Seal, Tolerance Grades T3, T5, T7, Adjustable Preload
The SEM-E-C is an adjustable preload single nut ball screw nut from Bosch Rexroth's standard series, belonging to the BASA ball screw product line. It is commonly used in linear drive applications requiring high precision and low backlash.
Key Features of the R151211075 Ball Screw Nut:
Type: The SEM-E-C is an adjustable preload single nut with standard Rexroth connection dimensions and seals.
Function: It is primarily used in applications requiring precise linear motion and positioning, such as machine tools and automation equipment.
Adjustable Preload: This design allows for preload adjustment to achieve zero backlash operation, thereby improving accuracy and rigidity.
Temperature Range: This nut can operate in a temperature range of -10°C to +80°C, with short-term peak temperatures up to 100°C (measured on the housing).
Compatibility: Suitable for both right-hand and left-hand ball screw versions (depending on the specific model).
Rexroth ball screw drive systems are successfully used in a wide range of fields:
- Machine tools
- Forming equipment
- Automation and material handling
- Woodworking
- Electrical and electronics
- Printing and papermaking
- Injection molding machines
- Food and packaging industries
- Medical devices
- Textile industry
- Others

Item

Specification

Part No.

R151211075

Series

Standard Series

Nut Type

Adjustable-preload Single Nut SEM-E-C

Nominal Size [mm]

20 × 5R × 3-4

Nominal Diameter [mm]

20

Thread Direction

Right-hand

Lead [mm]

5

Ball Diameter [mm]

3

Number of Ball Circuits

4

Nut Outer Diameter [mm]

36

Flange Diameter [mm]

58

Nut Length [mm]

40

Mounting Holes

BB2

Weight [kg]

0.33

Rated Dynamic Load [N]

17200

Rated Static Load [N]

21500

Max. Speed [m/min]

30

Adjusted Centering Diameter[mm]

Minimum 35.935

Maximum 35.970

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