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BOSCH REXROTH
R151217207


$524.37 USD
  • BOSCH REXROTH
  • Material:R151217207
  • Model:ZEM-E-K20X20RX3,5-3

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.
***Disclaimer: The following summary contains information gathered from various sources such as product descriptions, technical specifications and catalogs. While efforts have been made to provide accurate details, inaccuracies may occur. It is advised to verify all information by contacting Bosch Rexroth directly.***
The Bosch Rexroth ZEM-E-K 20X20RX35-3 (R151217207) is a high-precision ball screw assembly designed for linear motion applications. This cylindrical single nut model is part of the standard series and is characterized by its robust construction and reliable performance under demanding conditions. The ZEM-E-K 20X20RX35-3 features a nominal diameter of 20mm with a lead of right-handed threads, making it suitable for various mechanical setups that require precise linear movement. The nut is equipped with standard seals to protect against contaminants and offers standard axial clearance to ensure smooth operation. It comes with a dynamic load capacity which ensures durability and a long service life under dynamic conditions. The static load rating further attests to its ability to withstand static forces without compromising performance. With an operating temperature range from minimum to maximum degrees Celsius, this ball screw assembly can handle continuous operations at elevated temperatures, with temporary peaks allowed within specified limits. It maintains stability in terms of thermal expansion and performance consistency across the temperature spectrum. The ZEM-E-K 20X20RX35-3 also boasts a maximum permissible linear speed, highlighting its capability for high-speed applications while maintaining accuracy and efficiency. The product's design includes several preload classes and tolerance grades (T2, T3) that cater to different application requirements, ensuring optimal preload and minimizing axial play for precision tasks. This Bosch Rexroth ball screw nut type ZEMEK is versatile enough to be used in left-hand versions in some cases, offering flexibility for various design configurations. Its weight has been optimized for its size category without compromising on strength or rigidity, making it an excellent choice for designers seeking a balance between mass and performance in their linear motion systems. In summary, the Bosch Rexroth ZEM-E-K 20X20RX35-3 ball screw assembly represents an advanced solution for precise linear movements required in various industrial applications where durability, reliability, and high performance are essential.


Cylindrical single nut ZEM-E-K, size 20 x 20R x 3.5 - 3

Cylindrical single nut ZEM-E-K with standard seal and standard axial clearance
Nominal diameter d0 = 20
Lead P = 20 (right)
Ball diameter Dw = 3.5
Number of ball track turns i = 3

Unpacked Weight: 0.550 kg

Product overview

Rexroth connection dimensions
With seals
With left-hand version in some cases
Preload class: C0, C00, C1, C2, C3
Tolerance grade: T3 (for sizes as per the product overview for screws, see general technical notes and information, “Product description”), T5, T7, T9
Size L with tolerance77 mm ±0,1
Bearing temperature max+80
SeriesStandard series
Bearing temperature min-15
Nut or screwScrew drive nut
Maximum operating temperature+80
Footnote dynamic load capacity CThe load capacities are valid for tolerance grade T3 and T5 only. For other tolerance grades, please take into account the correction factor fac (see General Technical Notes and Information "Technical Data", Technical Notes).
Bearing temperature-15 °C ... +80 °C
CategoryB
Size L79.5
Minimum operating temperature-10
Operating temperature-10 °C ... +80 °C
Maximum permissible linear speed vmax (m/min)120
Direction of leadRight
Lead20
Size L628.5
Footnote static load capacity C0The load capacities are valid for tolerance grade T3 and T5 only. For other tolerance grades, please take into account the correction factor fac (see General Technical Notes and Information "Technical Data", Technical Notes).
Size B P95
Static load rating C018800
Size T13
Size D1 g638
Size D44
Size L11 with tolerance20 mm +0,2
Note: Maximum permissible speed vmaxSee "Characteristic speed d0 • n" (see General Technical Notes and Information, "Technical Data" (Technical Notes), and "Critical speed ncr" (see General Technical Notes and Information, "Project planning notes")
Nut typeZEM-E-K cylindrical single nut
Productgroup ID17
Screw drive version (drive type)Ball screw assembly
Size L1120
Footnote permissible operating temperature (min...max)Ball screw assemblies permit operation at continuous temperatures of up to 80 °C with temporary peaks of 100 °C, measurements taken on the outer shell of the nut in each case.
Dynamic load capacity C16000
Size d119
Size L77
Size d216.7
Footnote operating temperature max.Ball screw assemblies permit operation at continuous temperatures of up to 80°C with temporary peaks of 100°C, measurements taken on the outer shell of the nut in each case.
Weight0.550
Nominal size20 x 20R x 3,5 - 3

Technical data for nuts

Size

C

C0

vmax

Mass

d0 x P x Dw - i

N

N

m/min

kg

16 x 5R x 3 - 4 14800 1) 16100 1) 30 2) 0.17
16 x 10R x 3 - 3 11500 1) 12300 1) 60 2) 0.35 3)
0.2 4)
16 x 16R x 3 - 2 7560 1) 7600 1) 96 2) 0.12
16 x 16R x 3 - 3 11200 1) 12300 1) 0.42
20 x 5R x 3 - 4 17200 1) 21500 1) 30 2) 0.21
20 x 20R x 3,5 - 3 16000 1) 18800 1) 120 2) 0.44
40 x 5R x 3,5 - 5 34900 1) 64100 1) 19 2) 0.82
20 x 5L x 3 - 4 17200 1) 21500 1) 30 2) 0.21
1) The load ratings are valid for tolerance grades T3 and T5 only. For other tolerance grades, please take into account the correction factor fac (see General Technical Notes and Information "Technical Data", Technical Notes).
2) See "characteristic speed d0 • n" (see General Technical Notes and Information "Technical Data" (Technical Notes), and "Critical Speed ncr" (see General Technical Notes and Information, "Project planning notes")
3) R151204208
4) R151204209

Operating conditions

Size

Admissible operating temperature (min ... max) 1)

Admissible storage temperature (min ... max)

d0 x P x Dw - i

16 x 5R x 3 - 4 -10 °C ... +80 °C -15 °C ... +80 °C
16 x 10R x 3 - 3
16 x 16R x 3 - 2
16 x 16R x 3 - 3
20 x 5R x 3 - 4
20 x 20R x 3,5 - 3
40 x 5R x 3,5 - 5
20 x 5L x 3 - 4
1) Ball screw assemblies are suitable for continuous operation at temperatures up to 80 °C with temporary peaks of 100 °C (measurements taken on the outer shell of the nut).

Legend

Symbol

Description

Unit

d0

Nominal diameter

mm

P

Lead (R = right-hand, L = left-hand)

Dw

Ball diameter

mm

i

Number of ball track turns

C

Dynamic load capacity

N

C0

Static load capacity

N

vmax

Maximum permissible speed

m/min

Technical notes

technical illustration-R151217207-Cylindrical single nut ZEM-E-K, size 20 x 20R x 3.5 - 3
1) Lube port

Dimensions

Size

d1

d2

B

D1

D4

L

L6

L7

L11

T1

P9

g6

mm

mm

mm

mm

mm

mm

mm

mm

16 x 5R x 3 - 4 15 12.9 5 33 2 45 mm ±0.1 14.5 9.5 16 mm +0.2 3 mm +0.1
16 x 10R x 3 - 3 38 1) 4 54 mm ±0.1 1) 19 1)
33 2) 45 mm ±0.1 14.5
16 x 16R x 3 - 2 28
16 x 16R x 3 - 3 38 61 mm ±0.1 22.5
20 x 5R x 3 - 4 19 16.9 40 mm ±0.1 21 12 mm +0.2
20 x 20R x 3,5 - 3 16.7 77 mm ±0.1 28.5 20 mm +0.2
40 x 5R x 3,5 - 5 39 36.4 63 70 mm ±0.1 25 14
20 x 5L x 3 - 4 19 16.9 38 40 mm ±0.1 21 9.5 12 mm +0.2
1) R151204208
2) R151204209

Legend

Symbol

Description

d0

Nominal diameter

P

Lead (R = right-hand, L = left-hand)

Dw

Ball diameter

i

Number of ball track turns

Calculation

Installation

Lubrication

Nut housing MGA

technical illustration-R151217207-Cylindrical single nut ZEM-E-K, size 20 x 20R x 3.5 - 3

Nut housing MGA

Aluminum nut housings MGA are designed for ZEM-E-S, ZEM-E-K and ZEM-E-A nuts

Catalog

Service

CAD data

Arrestor nut

technical illustration-R151217207-Cylindrical single nut ZEM-E-K, size 20 x 20R x 3.5 - 3

Arrestor nut

Catalog

Service

Directives and standards

Required and supplementary documentation

 

For further instructions and information, please refer to the documentation for this product.

 

You can find PDF files of these documents on the Internet at www.boschrexroth.com/mediadirectory.

 

If you are unsure about using this product, please contact Bosch Rexroth.

Notes