You are using an outdated browser. For a faster, safer browsing experience, upgrade for free today.
Image not available

BOSCH REXROTH
R151251075


$1,234.30 USD
  • BOSCH REXROTH
  • Material:R151251075
  • Model:SEM-E-C 50X5RX3,5-5

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 SEM-E-C 50X5RX35-5 (R151251075) is a high-precision ball screw assembly designed for linear motion applications requiring exact positioning and repeatability. This adjustable preload single nut SEMEC is engineered with a nominal diameter d, a right-hand lead P, and a ball diameter Dw. It features a number of ball track turns i and complies with mounting dimensions similar to DIN, Part 2 flange type C. Equipped with standard seals and standard axial clearance, this model offers an adjustable preload to accommodate varying application requirements. The SEM-E-C 50X5RX35-5 operates within the tolerance grade T, ensuring precise movement for sizes outlined in the product overview for screws. Its dynamic load capacity C and static load rating C0 are specified for tolerance grades T3 and T7; any other grades should consider the correction factor f_ac as detailed in the technical notes. This screw drive nut boasts an impressive maximum operating temperature range from -30°C to +100°C, allowing it to function effectively in diverse environments. The permissible linear speed vmax ensures efficient operation while maintaining system integrity. The SEM-E-C 50X5RX35-5 can sustain continuous operating temperatures up to 80°C with temporary peaks up to 100°C, as measured on the nut's outer shell. The unit's zero-clearance adjustable single nut design contributes to its reliability and ease of use within various mechanical systems. A noteworthy feature is its compatibility with ball screw assembly hole pattern BB, further enhancing its versatility. With a weight of just 1 kg, this Bosch Rexroth ball screw assembly remains lightweight yet robust enough to support demanding applications. The nominal size of this model is denoted as 50 x R x 35 mm, making it suitable for integration into numerous design specifications where precision linear movement is critical.


Adjustable-preload single nut SEM-E-C, size 50 x 5R x 3.5 - 5

Adjustable-preload single nut SEM-E-C with standard seal and standard axial clearance
Nominal diameter d0 = 50
Lead P = 5 (right)
Ball diameter Dw = 3.5
Number of ball track turns i = 5

Unpacked Weight: 1.670 kg

Product overview

Mounting dimensions similar to DIN 69051, Part 5 flange type C
With seals
Adjustable preload
Tolerance grade: T3 (for sizes as per the product overview for screws, see General Technical Notes and Information "Product description"), T5, T7
Data Sheet Download Data Sheet
3D CAD Download 3D CAD
3D CAD Download 3D CAD
Manual Download Manual
Manual Download Manual
Manual Download Manual
Manual Download Manual
Manual Download Manual
Size D5110
Size L with tolerance54 mm
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
Minimum operating temperature-10
Size L410
Size D693
Size D1 f975
Size D1 min74.931
Size L325
Size L997.5
Size L1014.5
Size D1 max74.966
Operating temperature-10 °C ... +80 °C
Maximum permissible linear speed vmax (m/min)15
Direction of leadRight
Size L812
Lead5
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 L514.5
Static load rating C081300
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 typeSEM-E-C zero-clearance adjustable single nut
Productgroup ID17
Screw drive version (drive type)Ball screw assembly
Size D711
Hole patternBB1
Size Sx5
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 C38400
Size d149
Size L54
Size d246.4
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.
Weight1.670
Nominal size50 x 5R x 3,5 - 5

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) 0.2
16 x 10R x 3 - 3 11500 1) 12300 1) 60 2) 0.22
16 x 16R x 3 - 3 11200 1) 12000 1) 96 2) 0.29
20 x 5R x 3 - 4 17200 1) 21500 1) 30 2) 0.33
20 x 20R x 3,5 - 3 16000 1) 18800 1) 120 2) 0.56
25 x 5R x 3 - 4 19100 1) 27200 1) 30 2) 0.43
25 x 10R x 3 - 4 18800 1) 27000 1) 60 2) 0.54
25 x 25R x 3,5 - 3 17600 1) 23300 1) 150 2) 0.77
32 x 5R x 3,5 - 4 25900 1) 40000 1) 23 2) 0.74
32 x 10R x 3,969 - 5 38000 1) 58300 1) 47 2) 0.97
32 x 20R x 3,969 - 3 23600 1) 33700 1) 94 2) 1.04
32 x 32R x 3,969 - 3 23400 1) 34000 1) 150 2) 1.34
40 x 5R x 3,5 - 5 34900 1) 64100 1) 19 2) 1.25
40 x 10R x 6 - 4 60000 1) 86400 1) 38 2) 1.39
40 x 12R x 6 - 4 59900 1) 86200 1) 45 2) 1.47
40 x 20R x 6 - 3 45500 1) 62800 1) 75 2) 1.55
40 x 40R x 6 - 3 44400 1) 62300 1) 150 2) 2.69
50 x 5R x 3,5 - 5 38400 1) 81300 1) 15 2) 1.67
50 x 10R x 6 - 6 95600 1) 166500 1) 30 2) 2.46
50 x 12R x 6 - 6 95500 1) 166400 1) 36 2) 2.69
50 x 20R x 6,5 - 5 90800 1) 149700 1) 60 2) 3.08
50 x 40R x 6,5 - 3 55800 1) 85900 1) 120 2) 3.39
63 x 10R x 6 - 6 106600 1) 214300 1) 24 2) 2.83
63 x 20R x 6,5 - 5 100700 1) 190300 1) 48 2) 4.86
63 x 40R x 6,5 - 3 64100 1) 114100 1) 95 2) 5.36
80 x 10R x 6,5 - 6 130100 1) 291700 1) 19 2) 3.73
80 x 20R x 12,7 - 6 315200 1) 534200 1) 30 2) 13.5
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")

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 - 3
20 x 5R x 3 - 4
20 x 20R x 3,5 - 3
25 x 5R x 3 - 4
25 x 10R x 3 - 4
25 x 25R x 3,5 - 3
32 x 5R x 3,5 - 4
32 x 10R x 3,969 - 5
32 x 20R x 3,969 - 3
32 x 32R x 3,969 - 3
40 x 5R x 3,5 - 5
40 x 10R x 6 - 4
40 x 12R x 6 - 4
40 x 20R x 6 - 3
40 x 40R x 6 - 3
50 x 5R x 3,5 - 5
50 x 10R x 6 - 6
50 x 12R x 6 - 6
50 x 20R x 6,5 - 5
50 x 40R x 6,5 - 3
63 x 10R x 6 - 6
63 x 20R x 6,5 - 5
63 x 40R x 6,5 - 3
80 x 10R x 6,5 - 6
80 x 20R x 12,7 - 6
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)

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-R151251075-Adjustable-preload single nut SEM-E-C, size 50 x 5R x 3.5 - 5
1) Lube port (lube port machining: Flat surface L3 ≤ 15 mm, countersink L3 > 15 mm)
2) Nut rework: Axial lube port

Dimensions

Size

D1 min

D1 max

d1

d2

D1

D5

Hole pattern

D6

D7

L

L3

L4

L5

L8

L9

L10

S 1)

Sx

d0 x P x Dw - i

f9

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

mm

16 x 5R x 3 - 4 27.94 27.975 15 12.9 28 48 BB2 38 5.5 38 15 10 11.5 7.1 44 11.5 M6 4
16 x 10R x 3 - 3 45 15 15 11 15
16 x 16R x 3 - 3 27.95 27.978 61 20 23 10 23
20 x 5R x 3 - 4 35.935 35.97 19 16.9 36 58 47 6.6 40 10 12.5 7.1 51 12.5
20 x 20R x 3,5 - 3 35.945 35.973 16.7 77 20 25 28.5 12.5 28.5
25 x 5R x 3 - 4 39.935 39.97 24 21.9 40 62 51 45 10 12.5 9.5 55 12.5
25 x 10R x 3 - 4 64 16 22 10 22
25 x 25R x 3,5 - 3 39.945 39.973 21.4 95 25 30 35 14 35
32 x 5R x 3,5 - 4 49.935 49.97 31 28.4 50 80 65 9 48 20 10 14 9.7 71 14
32 x 10R x 3,969 - 5 27.9 77 16 28.5 12.5 28.5
32 x 20R x 3,969 - 3 49.945 49.973 84 25 32 32
32 x 32R x 3,969 - 3 120 40 50 50
40 x 5R x 3,5 - 5 62.931 62.966 39 36.4 63 93 BB1 78 54 25 10 14.5 12 81.5 14.5 M8x1 5
40 x 10R x 6 - 4 38 33.8 70 16 22.5 11.8 22.5
40 x 12R x 6 - 4 75 25 25 12.5 25
40 x 20R x 6 - 3 62.941 62.969 88 31.5 16.5 31.5
40 x 40R x 6 - 3 142 40 45 51 25 51
50 x 5R x 3,5 - 5 74.931 74.966 49 46.4 75 110 93 11 54 25 10 14.5 12 97.5 14.5
50 x 10R x 6 - 6 48 43.8 90 30 16 30 14.1 30
50 x 12R x 6 - 6 105 25 37.5 15 37.5
50 x 20R x 6,5 - 5 74.941 74.969 43.4 132 51 20 51
50 x 40R x 6,5 - 3 149 45 59.5 18 59.5
63 x 10R x 6 - 6 89.926 89.961 61 56.8 90 125 108 90 16 30 14 110 30
63 x 20R x 6,5 - 5 94.936 94.964 56.4 95 135 115 13.5 132 25 51 20 117.5 51
63 x 40R x 6,5 - 3 149 45 59.5 18 59.5
80 x 10R x 6,5 - 6 104.926 104.961 78 73.3 105 145 125 95 16 32.5 14 127.5 32.5
80 x 20R x 12,7 - 6 124.931 124.959 76 67 125 165 145 170 50 25 60 24 147.5 60
1) Lube port machining: Flat surface L3 ≤ 15 mm, countersink L3 > 15 mm

Legend

Symbol

Description

Unit

d0

Nominal diameter

mm

P

Lead (R = right-hand)

Dw

Ball diameter

mm

i

Number of ball track turns

Calculation

Installation

Attention: When setting up applications, do not allow components to collide with the front lube unit.

Lubrication

Nut housing MGD

technical illustration-R151251075-Adjustable-preload single nut SEM-E-C, size 50 x 5R x 3.5 - 5

Nut housing MGD

Steel nut housings MGD are designed for FEM-E-C, FDM-E-C, SEM-E-C and FED-E-B nuts

Catalog

Service

CAD data

Front lube unit – ball screw assembly

technical illustration-R151251075-Adjustable-preload single nut SEM-E-C, size 50 x 5R x 3.5 - 5

Front lube unit – ball screw assembly

Catalog

Service

Arrestor nut

technical illustration-R151251075-Adjustable-preload single nut SEM-E-C, size 50 x 5R x 3.5 - 5

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