BALL SCREW 20X20RX3,5 (T9)

Manufacturer: Bosch Rexroth

Material #: R151117910

Model : BALL SCREW 20X20RX3,5 (T9)

***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 BALL SCREW 20X20RX35 (R151117910) is a high-precision ball screw assembly designed for linear motion applications requiring accuracy and reliability. With a nominal diameter of 20 mm and a lead of 20 mm, this right-hand screw features a ball diameter that complements its design to ensure smooth movement. The tolerance class T9 indicates the precision level of the screw, ensuring it meets stringent standards for consistency and performance. This ball screw assembly is crafted to accommodate maximum operating temperatures, allowing for continuous operation at up to certain degrees Celsius with temporary peaks slightly higher. These temperature ratings are based on measurements taken on the outer shell of the nut, ensuring that the device maintains its integrity even in demanding conditions. The product belongs to the precision spindle category within Bosch Rexroth's product lineup, emphasizing its suitability for applications where precise control over motion is paramount. As a precision spindle, it offers an exceptional combination of rigidity and accuracy, making it an ideal choice for CNC machines and other automation systems where exact positioning is critical. Its construction includes a nut or screw mechanism with a drive type characterized by ball circulation within the assembly, providing low friction and high efficiency. The maximum length (Lmax) specification ensures compatibility with various installation requirements while maintaining optimal performance. Overall, the Bosch Rexroth BALL SCREW 20X20RX35 is engineered as a robust solution for advanced mechanical systems requiring precise linear motion control under varying temperature conditions. Its mass and moment of inertia are calculated to provide stable operation without sacrificing responsiveness or speed.

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BALL SCREW 20X20RX3,5 (T9)

Percision screw, size 20 x 20R x 3,5, T9

Percision screw
Nominal diameter d0 = 20
Lead P = 20 (right-hand)
Ball diameter Dw = 3,5
Tolerance class T9 (0,130/300mm)

Unpacked Weight: 0.000 kg

Product overview

Data Sheet	Download Data Sheet
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual
Manual	Download Manual

Bearing temperature max	+80
Bearing temperature min	-15
Productgroup ID	17
Nut or screw	Precision spindle
Screw drive version (drive type)	Ball screw assembly
Maximum operating temperature	+80
Tolerance grade screw	T9 (0.130/300 mm)
Max. length Lmax	1500
Bearing temperature	-15 °C ... +80 °C
Minimum operating temperature	-10
Operating temperature	-10 °C ... +80 °C
Direction of lead	Right
Mass m (kg/m)	1.99
Lead	20
Moment of inertia Js	0.81
Footnote permissible operating temperature (min...max)	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).
Size d1	19
Size d2	16.7
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.
Weight	0.000
Nominal size	20 x 20R x 3,5

Operating conditions

Size	Admissible operating temperature (min ... max) 2)	Admissible storage temperature (min ... max)
	Admissible operating temperature (min ... max) 2)	Admissible storage temperature (min ... max)
6 x 1R x 0,8 1)	-10 °C ... +80 °C	-15 °C ... +80 °C
6 x 2R x 0,8 1)
8 x 1R x 0,8 1)
8 x 2R x 1,2 1)
8 x 2,5R x 1,588
8 x 5R x 1,588
12 x 2R x 1,2 1)
12 x 5R x 2
12 x 10R x 2
16 x 5L x 3
16 x 5R x 3
16 x 10R x 3
16 x 16R x 3
20 x 5R x 3
20 x 5L x 3
20 x 10R x 3
20 x 20R x 3,5
20 x 40R x 3,5 1)
25 x 5R x 3
25 x 5L x 3
25 x 10R x 3
25 x 25R x 3,5
32 x 5R x 3,5
32 x 5L x 3,5
32 x 10R x 3,969
32 x 20R x 3,969
32 x 32R x 3,969
32 x 64R x 3,969 1)
40 x 5R x 3,5
40 x 5L x 3,5
40 x 10R x 6
40 x 10L x 6
40 x 12R x 6
40 x 16R x 6
40 x 20R x 6
40 x 25R x 6
40 x 30R x 6
40 x 40R x 6
50 x 5R x 3,5
50 x 10R x 6
50 x 12R x 6
50 x 16R x 6
50 x 20R x 6,5
50 x 25R x 6,5
50 x 30R x 6,5
50 x 40R x 6,5
63 x 10R x 6
63 x 20R x 6,5
63 x 40R x 6,5
80 x 10R x 6,5
80 x 20R x 12,7 1)

1)	Size not available as cut length
2)	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).

Technical notes

	Please state length in the “Inquiry/Order Form”
	Ltot = overall length

Dimensions and technical data

Size	d1	d2	Lmax	Length on request	Js	Mass
d0 x P x Dw	mm		mm	mm	kg•cm²/m	kg/m
6 x 1R x 0,8 1)	6	5.3 mm	-	-	0.02	0.19
6 x 2R x 0,8 1)	6	5.3 mm			0.02	0.19
8 x 1R x 0,8 1)	8	7.3 cm			0.04	0.36
8 x 2R x 1,2 1)	8	7 cm				0.36
8 x 2,5R x 1,588	7.5	6.3 mm	1500	2500		0.3
8 x 5R x 1,588	7.5	6.3 mm	1500	2500		0.3
12 x 2R x 1,2 1)	11.7	10.7 mm	-	-	0.13	0.79
12 x 5R x 2	11.4	9.9 mm	1500	2500	0.11	0.75
12 x 10R x 2	11.4	9.9 mm		2500	0.11	0.74
16 x 5L x 3	15	12.9 mm		3500	0.31	1.24
16 x 5R x 3						1.24
16 x 10R x 3						1.23
16 x 16R x 3					0.34	1.29
20 x 5R x 3	19	16.9 mm			0.84	2.03
20 x 5L x 3
20 x 10R x 3
20 x 20R x 3,5		16.7 mm			0.81	1.99
20 x 40R x 3,5 1)		16.4 mm	-	-	0.86	2.06
25 x 5R x 3	24	21.9 mm	2500	5500	2.22	3.31
25 x 5L x 3					2.22	3.31
25 x 10R x 3					2.39	3.43
25 x 25R x 3,5		21.4 mm			2.15	3.25
32 x 5R x 3,5	31	28.4 mm			6.05	5.45
32 x 5L x 3,5		28.4 mm			6.05	5.45
32 x 10R x 3,969		27.9 mm			6.4	5.6
32 x 20R x 3,969					6.39	5.6
32 x 32R x 3,969					6.17	5.5
32 x 64R x 3,969 1)			-	-	6.04	5.44
40 x 5R x 3,5	39	36.4 mm	4500	5500	15.64	8.78
40 x 5L x 3,5	39	36.4 mm		5500	15.64	8.78
40 x 10R x 6	38	33.8 mm		7500	13.55	8.15
40 x 10L x 6				7500	13.55	8.15
40 x 12R x 6				5000	13.97	8.27
40 x 16R x 6				5000	12.9	7.95
40 x 20R x 6				7500	13.52	8.14
40 x 25R x 6				5000	13.51	8.67
40 x 30R x 6				5000	13.71	8.67
40 x 40R x 6				7500	13.42	8.11
50 x 5R x 3,5	49	46.4 mm		5500	40.03	14.05
50 x 10R x 6	48	43.8 mm		7500	35.71	13.25
50 x 12R x 6				5000	36.58	13.41
50 x 16R x 6				5000	34.37	13
50 x 20R x 6,5		43.3 mm		7500	34.5	13.01
50 x 25R x 6,5				7500	32.4	12.58
50 x 30R x 6,5				5000	36.64	13.42
50 x 40R x 6,5				7500	34.34	12.98
63 x 10R x 6	61	56.8 mm			95.82	21.72
63 x 20R x 6,5		56.3 mm			93.29	21.42
63 x 40R x 6,5		56.3 mm			93.08	21.4
80 x 10R x 6,5	78	73.3 mm			256.86	35.58
80 x 20R x 12,7 1)	76	67 mm	-	-	211.51	32.16

1)	Size not available as cut length

Legend

Symbol	Description	Unit
d0	Nominal diameter	mm
P	Lead
DW	Ball diameter	mm
Js	Moment of inertia	kg • cm2/m
Lmax	Maximum length	mm

Calculation

Installation

Measuring pads

Gauge with a self-aligning contact pad on the screw For the easy alignment of the ball screw assembly in the machine Two measuring pads of different lengths are available

Catalog

Service

Directives and standards

Notes

BALL SCREW 20X20RX3,5 (T9)

Manufacturer: Bosch Rexroth

Material #: R151117910

Model : BALL SCREW 20X20RX3,5 (T9)

Operating conditions

Dimensions and technical data

Legend

Measuring pads

Measuring pads

Related Products

Information

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