BOSCH REXROTH
R150221085

BOSCH REXROTH
Material:R150221085
Model:FEM-E-C25X5RX3-4

Due to extremely high demand, please call 877-366-7226 for availability

***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 FEM-E-C 25X5RX3-4 (R150221085) is a high-precision ball screw assembly designed to convert rotary motion into linear motion with minimal friction. This single nut with flange FEMEC is engineered for standard series applications and features a nominal diameter of 25mm and a lead of 5mm, ensuring precise and reliable operation. The ball diameter Dw and the number of ball track turns i are optimized for efficient load distribution and smooth movement. Constructed to align with mounting dimensions similar to DIN standards, the FEM-E-C 25X5RX3-4 offers versatility in installation with both flange type C and flange type B options available. It includes standard seals to protect against contaminants, along with standard axial clearance to accommodate thermal expansion and operational variances. The nut comes in various preload classes ranging from C0 to C5, allowing users to select the appropriate level of rigidity for their specific application needs. Tolerance grade T3 ensures compatibility with screws as per the product overview, while maintaining high precision in positioning tasks. This Bosch Rexroth ball screw assembly operates effectively within a temperature range of -10°C to +100°C, capable of sustaining continuous use at these temperatures while tolerating temporary peaks up to 120°C on the outer shell of the nut. It boasts an impressive dynamic load capacity Cdyn and static load rating C0 that are valid for tolerance grades T3 and T5; other grades may require a correction factor as noted in technical data sections. With its robust design, it can achieve maximum permissible linear speeds (vmax), ensuring efficient operation in demanding environments. The product's weight is meticulously calculated to provide stability without compromising performance. Suitable for various industrial applications, this ball screw assembly represents Bosch Rexroth's commitment to precision engineering and reliability.

Single nut with flange FEM-E-C, size 25 x 5R x 3 - 4

Single nut with flange FEM-E-C with standard seal and standard axial clearance
Nominal diameter d0 = 25
Lead P = 5 (right)
Ball diameter Dw = 3
Number of ball track turns i = 4

Unpacked Weight: 0.42 kg

Product overview

Mounting dimensions similar to DIN 69051, Part 5 flange type C (flange type B available).
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

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Manual	Download Manual
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Manual	Download Manual
Manual	Download Manual

Size D5	62
Size L with tolerance	45 mm
Bearing temperature max	+80
Nut type	FEM-E-C single nut with flange
Series	Standard series
Bearing temperature min	-15
Productgroup ID	17
Nut or screw	Screw drive nut
Screw drive version (drive type)	Ball screw assembly
Maximum operating temperature	+80
Footnote dynamic load capacity C	The load capacities are valid for tolerance grade T3 and T5 only. For other tolerance grades, please take into account the correction factor f_ac (see General Technical Notes and Information "Technical Data", Technical Notes).
Bearing temperature	-15 °C ... +80 °C
Category	A
Minimum operating temperature	-10
Size L4	10
Size D6	51
Size L3	12
Size L9	55
Size D7	6.6
Size L10	33
Operating temperature	-10 °C ... +80 °C
Maximum permissible linear speed vmax (m/min)	30
Lead	5
Footnote static load capacity C0	The load capacities are valid for tolerance grade T3 and T5 only. For other tolerance grades, please take into account the correction factor f_ac (see General Technical Notes and Information "Technical Data", Technical Notes).
Hole pattern	BB2
Static load rating C0	27200
Size Sx	4
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.
Size D1 g6	40
Dynamic load capacity C	19100
Size d1	24
Size L	45
Size d2	21.9
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.
Note: Maximum permissible speed vmax	See "Characteristic speed d₀• n" (section Technical notes) and "Critical speed n_cr" (section Calculation and examples)
Weight	0.42
Nominal size	25 x 5R x 3 - 4

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)	0.19
16 x 10R x 3 - 3	11500 1)	12300 1)	60 2)	0.21
16 x 16R x 3 - 3	11200 1)	12000 1)	96 2)	0.26
20 x 5R x 3 - 4	17200 1)	21500 1)	30 2)	0.31
20 x 10R x 3 - 4	16900 1)	21300 1)	60 2)	0.4
20 x 20R x 3,5 - 3	16000 1)	18800 1)	120 2)	0.49
25 x 5R x 3 - 4	19100 1)	27200 1)	30 2)	0.36
25 x 10R x 3 - 4	18800 1)	27000 1)	60 2)	0.47
25 x 25R x 3,5 - 3	17600 1)	23300 1)	150 2)	0.63
32 x 5R x 3,5 - 4	25900 1)	40000 1)	23 2)	0.62
32 x 10R x 3,969 - 5	38000 1)	58300 1)	47 2)	0.84
32 x 20R x 3,969 - 3	23600 1)	33700 1)	94 2)	0.9
32 x 32R x 3,969 - 3	23400 1)	34000 1)	150 2)	1.21
40 x 5R x 3,5 - 5	34900 1)	64100 1)	19 2)	1.03
40 x 10R x 6 - 4	60000 1)	86400 1)	38 2)	1.19
40 x 10R x 6 - 6	86500 1)	132200 1)	38 2)	1.49
40 x 12R x 6 - 4	59900 1)	86200 1)	45 2)	1.27
40 x 16R x 6 - 4	59600 1)	85900 1)	60 2)	1.51
40 x 20R x 6 - 3	45500 1)	62800 1)	75 2)	1.44
40 x 25R x 6 - 4	56900 1)	85800 1)	93 2)	1.91
40 x 30R x 6 - 4	56300 1)	85100 1)	112 2)	2.21
40 x 40R x 6 - 3	44400 1)	62300 1)	150 2)	2.16
50 x 5R x 3,5 - 5	38400 1)	81300 1)	15 2)	1.39
50 x 10R x 6 - 6	95600 1)	166500 1)	30 2)	2.14
50 x 12R x 6 - 6	95500 1)	166400 1)	36 2)	2.38
50 x 16R x 6 - 6	95300 1)	166000 1)	48 2)	2.75
50 x 20R x 6,5 - 5	90800 1)	149700 1)	60 2)	2.73
50 x 30R x 6,5 - 4	71300 1)	118800 1)	90 2)	3.12
50 x 40R x 6,5 - 3	55800 1)	85900 1)	120 2)	3.04
63 x 10R x 6 - 6	106600 1)	214300 1)	24 2)	2.56
63 x 20R x 6,5 - 5	100700 1)	190300 1)	48 2)	4.51
63 x 40R x 6,5 - 3	64100 1)	114100 1)	95 2)	5.04
80 x 10R x 6,5 - 6	130100 1)	291700 1)	19 2)	3.4
80 x 20R x 12,7 - 6	315200 1)	534200 1)	30 2)	10.2
16 x 5L x 3 - 4	14800 1)	16100 1)		0.19
20 x 5L x 3 - 4	17200 1)	21500 1)		0.31
25 x 5L x 3 - 4	19100 1)	27200 1)		0.36
32 x 5L x 3,5 - 4	25900 1)	40000 1)	23 2)	0.62
40 x 5L x 3,5 - 5	34900 1)	64100 1)	19 2)	1.03
40 x 10L x 6 - 4	60000 1)	86400 1)	38 2)	1.19

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" (section Technical notes) and "critical speed n"cr" (section Calculation and examples)

Operating conditions

Size	Admissible operating temperature (min ... max) 1)	Admissible storage temperature (min ... max)
d0 x P x Dw - i	Admissible operating temperature (min ... max) 1)	Admissible storage temperature (min ... max)
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 10R 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 10R x 6 - 6
40 x 12R x 6 - 4
40 x 16R x 6 - 4
40 x 20R x 6 - 3
40 x 25R x 6 - 4
40 x 30R x 6 - 4
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 16R x 6 - 6
50 x 20R x 6,5 - 5
50 x 30R x 6,5 - 4
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
16 x 5L x 3 - 4
20 x 5L x 3 - 4
25 x 5L x 3 - 4
32 x 5L x 3,5 - 4
40 x 5L x 3,5 - 5
40 x 10L x 6 - 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-R150221085-Single nut with flange FEM-E-C, size 25 x 5R x 3 - 4

1)	Lube port at flange center (lube port machining: Flat surface L3 ≤ 15 mm, countersink L3 > 15 mm)
2)	Nut rework: Axial lube port

Dimensions

Size	d1	d2	D1	D5	Hole pattern	D6	D7	L	L3	L4	L9 1)	L10	S 2)	Sx
d0 x P x Dw - i	d1	d2	g6	D5	Hole pattern	D6	D7	L	L3	L4	L9 1)	L10	S 2)	Sx
d0 x P x Dw - i	mm	mm	mm	mm		mm	mm	mm	mm	mm	mm	mm	mm	mm
16 x 5R x 3 - 4	15	12.9	28	48	BB2	38	5.5	38	12	10	44	26	M6	4
16 x 10R x 3 - 3								45		16		33
16 x 16R x 3 - 3								61		20		49
20 x 5R x 3 - 4	19	16.9	36	58		47	6.6	40		10	51	28
20 x 10R x 3 - 4		16.9						60		16		48
20 x 20R x 3,5 - 3		16.7						77		25		65
25 x 5R x 3 - 4	24	21.9	40	62		51		45		10	55	33
25 x 10R x 3 - 4		21.9						64		16		52
25 x 25R x 3,5 - 3		21.4						95		30		83
32 x 5R x 3,5 - 4	31	28.4	50	80		65	9	48	13	10	71	35
32 x 10R x 3,969 - 5		27.9						77		16		64
32 x 20R x 3,969 - 3								84		25		71
32 x 32R x 3,969 - 3								120		40		107
40 x 5R x 3,5 - 5	39	36.4	63	93	BB1	78		54	15	10	81.5	39	M8x1	5
40 x 10R x 6 - 4	38	33.8						70		16		55
40 x 10R x 6 - 6								90		16		75
40 x 12R x 6 - 4								75		25		60
40 x 16R x 6 - 4								90				75
40 x 20R x 6 - 3								88				73
40 x 25R x 6 - 4								127		30		112
40 x 30R x 6 - 4								145		35		130
40 x 40R x 6 - 3								142		45		127
50 x 5R x 3,5 - 5	49	46.4	75	110		93	11	54		10	97.5	39
50 x 10R x 6 - 6	48	43.8						90	18	16		72
50 x 12R x 6 - 6								105		25		87
50 x 16R x 6 - 6								128				110
50 x 20R x 6,5 - 5		43.4						132				114
50 x 30R x 6,5 - 4								151		35		133
50 x 40R x 6,5 - 3								149		45		131
63 x 10R x 6 - 6	61	56.8	90	125		108		90	22	16	110	68
63 x 20R x 6,5 - 5		56.4	95	135		115	13.5	132		25	117.5	110
63 x 40R x 6,5 - 3		56.4	95	135		115		149		45	117.5	127
80 x 10R x 6,5 - 6	78	73.3	105	145		125		95		16	127.5	73
80 x 20R x 12,7 - 6	76	67	125	165		145		170	25	25	147.5	145
16 x 5L x 3 - 4	15	12.9	28	48	BB2	38	5.5	38	12	10	44	26	M6
20 x 5L x 3 - 4	19	16.9	36	58		47	6.6	40			51	28
25 x 5L x 3 - 4	24	21.9	40	62		51	6.6	45			55	33
32 x 5L x 3,5 - 4	31	28.4	50	80		65	9	48	13		71	35
40 x 5L x 3,5 - 5	39	36.4	63	93	BB1	78		54	15		81.5	39	M8x1
40 x 10L x 6 - 4	38	33.8	63	93	BB1	78		70	15	16	81.5	55	M8x1

1)	Flange type B (two flat surfaces) option available!
2)	Lube port machining: Flat surface L3 ≤ 15 mm, countersink L3 > 15 mm. With left-hand lead the lube port position mirrors its position with right-hand lead!

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

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

Lubrication

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

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