SOLID SHAFT WV-50H7

Manufacturer: Bosch Rexroth

Material #: R100005001

Model : SOLID SHAFT WV-50H7

***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 SOLID SHAFT (R100005001) is a high-precision component designed for use in linear motion applications requiring exceptional durability and longevity under rolling loads. This solid shaft is crafted from heat-treated steel, ensuring a robust construction that can withstand demanding conditions. The product features a shaft diameter that adheres to a tight tolerance (H), signifying its suitability for applications with particularly high demands. It is available in mill-cut lengths, with the maximum usable length subject to specific tolerances, which can be provided upon request. The precision steel shaft falls under the product group ID of Vollwelle and exhibits excellent surface roughness with an RA value of 0.3μm. Its depth of hardness is at least 0.55mm, contributing to its resistance against wear and tear over time. The straightness tolerance of this model maintains the highest precision, with a minimum value of 5μm for lengths under 1m as per ISO standards. Bosch Rexroth's SOLID SHAFT has been engineered to facilitate the combination of sections for extended overall lengths, allowing linear bushings to roll smoothly over joints without interruption. The material's cylindricity and roundness tolerances ensure consistent performance and reliable guidance for linear bushings. This model code SOLID SHAFT is specifically tailored to meet the needs of linear guide systems where superior material properties such as consistent hardness, structural integrity, and precise geometry are critical for optimal functionality. With its high mass (kg/m) and guaranteed minimum hardness (HRC), this product stands out as an essential component for any application requiring a durable and precise linear guide solution.

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SOLID SHAFT WV-50H7

Solid shaft (heat-treated steel), 50-H7

Solid shaft
made of heat-treated steel
Shaft diameter d = 50
Tolerance = H7

Unpacked Weight: 0 kg

As part of a linear guide, the role of the shaft places strict requirements on the materials used.

Rexroth offers the ideal shaft material for any diameter range. Extremely consistent surface hardness and hardness depth combine with outstanding purity, consistent structure and balanced grading for extraordinarily long service life under rolling loads.

Solid shafts with shaft diameters 20 mm to 8 m in length available upon request.

Sections are combined for longer overall lengths. Linear bushings can simply be rolled over joints.

For particularly high demands with a very long service life under rolling loads.

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

Mill-cut length L	6100
Version of precision steel shaft	Vollwelle
Productgroup ID	17
Maximum usable length Lmax	5900
Tolerance grade footnote	Other tolerances upon request
Footnote Lmax	Sections are combined for longer overall lengths. Linear bushings can simply be rolled over joints.
Material of precision steel shafts	Heat-treated steel Cf53
Mass m (kg/m)	15.32
Footnote length L	Regarding geometry and hardness
Tolerance grade shaft	h7
Hardness	min. 60
Cylindricity tolerance t2 footnote	Measurement of differences in diameter
Cylindricity tolerance t2	16
Shaft diameter d	50
Roundness tolerance t1	11
Linear guide type	Linear bushing and shaft
Filter for linear bushings and shafts	Precision steel shafts
Surface roughness RA	0.32
Depth of hardness (min.)	1.5
Straightness tolerance t3 footnote	The smallest possible value is 40 µm for lengths under 1 m. Straightness is measured based on ISO 13012.
Straightness tolerance t3	100
Weight	0

Dimensional accuracy and tolerance zones

The diameters of the precision steel shafts come in h6 and h7 tolerance zones. The adjacent table shows information on dimensional accuracy. The diameter tolerance of annealed shaft cross-sections vary slightly from the specified tolerance zone.

Ød	mm	3	5		6		8		10		12		14		15		16		18		20		22		24		25		30		32		35		38		40		45		50		55		60		70		80		100		110
Tolerance grade 1)		h6		h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7	h6	h7
Diameter tolerance	µm	0 - 6	0 - 8	0 - 12	0 - 8	0 - 12	0 - 9	0 - 15	0 - 9	0 - 15	0 - 11	0 - 18	0 - 11	0 - 18	0 - 11	0 - 18	0 - 11	0 - 18	0 - 11	0 - 18	0 - 13	0 - 21	0 - 13	0 - 21	0 - 13	0 - 21	0 - 13	0 - 21	0 - 13	0 - 21	0 - 16	0 - 25	0 - 16	0 - 25	0 - 16	0 - 25	0 - 16	0 - 25	0 - 16	0 - 25	0 - 16	0 - 25	0 - 19	0 - 30	0 - 19	0 - 30	0 - 19	0 - 30	0 - 19	0 - 30	0 - 22	0 - 35	0 - 22	0 - 35
t1	µm	3	4	5	4	5	4	6	4	6	5	8	5	8	5	8	5	8	5	8	6	9	6	9	6	9	6	9	6	9	7	11	7	11	7	11	7	11	7	11	7	11	8	13	8	13	8	13	8	13	10	15	10	15
t2 2)	µm	4	5	8	5	8	6	9	6	9	8	11	8	11	8	11	8	11	8	11	9	13	9	13	9	13	9	13	9	13	11	16	11	16	11	16	11	16	11	16	11	16	13	19	13	19	13	19	13	19	15	22	15	22
t3 3)	µm/m	150					120				100
Ra	µm	0.32

1)	Other tolerances upon request
2)	Measurements if differences in diameter
3)	The smallest possible value is 40 µm for lengths under 1 m. Straightness is measured based on ISO 13012.

Measurement of straightness based on ISO 13012

The measuring points are evenly distributed between the support points and the shaft sections protruding past them. More supports are used accordingly for long, thin shafts. Straightness is half of the gauge measurement when turning the shaft 360°.

Measurement of roundness

The drawing shows the roundness of a raw shaft compared to a precision steel shaft.

a) Raw shaft

b) Precision shaft

Shaft hardness

The outer zone of the shaft is induction-hardened. Depending on the shaft diameter, the depth of hardness ranges from 0.4 to 2.4 mm. Linear and transverse surface hardness and depth of hardness are highly consistent. This ensures high dimensional consistency and long service life. The adjacent figure shows the cross-section and longitudinal section of a hardened and polished precision steel shaft. The hardened surface zone is made visible by caustic etching.

Technische Daten

Ød	mm	3	5	6	8	10	12	14	15	16	18	20	22	24	25	30	32	35	38	40	45	50	55	60	70	80	100	110
L	mm	-	75 1)
Mill-cut length	mm	400	5800		6100
Lmax 2)	mm	400	5800		6100
Hardness		min. 60 HRC
Material no.		1.1213
Depth of hardness (min.)	mm	0.4					0.6					0.9					1.5						2.2				2.4
m	kg/m	0.06	0.15	0.22	0.39	0.61	0.88	1.2	1.38	1.57	1.98	2.45	2.97	3.53	3.83	5.51	6.27	7.5	8.85	9.8	12.41	15.32	18.53	22.05	30.02	39.21	61.26	74.13

1)	Regarding geometry and hardness
2)	Solid shafts with shaft diameters 20 mm to 8 m in length available upon request. Sections are combined for longer overall lengths. Linear bushings can simply be rolled over joints.

Legend

Symbol	Description	Unit
Ød	Shaft diameters	mm
L	Length	mm
Lmax	Maximum length	mm
m	Mass	kg/m
t1	Roundness tolerance	μm
t2	Cylindricity	μm
t3	Straightness	μm/m
Ra	Surface roughness	μm

Technical data

Shaft machining

Chamfering

When used as round guides for Linear Bushings, the ends of steel shafts must be chamfered so the ball retainers/wiper seals are not damaged when the Linear Bushings are pressed onto the shafts. The figure and table show the chamfering dimensions. Linear bushings with wiper seals cannot be pressed over sharp edges on the shaft (e.g., retaining ring grooves) since the sealing lips will be damaged.

Shaft diameters	mm	3	4	5	8	10	12	14	16	20	25	25	30	40	50	60	80
Length of chamfers L1	mm	1	1,5	1,5	1,5	1,5	2	2	2	2	2	2	2	3	3	3	3

Processing

Hardened and polished steel shafts are available in mill-cut lengths. These can be cut to size and machined to include:

Spigots Female and male threads Counterbores Radial and axial holes Grooves Other machining

Unmachined, cut-to-size shafts come chamfered for accident prevention unless ordered otherwise.

Annealing machined sections

Annealing may be necessary when machining shafts due to the hardened outer zone (minor change in size possible).

Length tolerance for cut-to-size shafts

Shaft length	Tolerance (mm)
< 400	±0,5
≤ 400 ‒ 1000	±0,8
≤ 1000 ‒ 2000	±1,2
≤ 2000 ‒ 4000	±2,0
≤ 4000 ‒ 6000	±3,0
≤ 6000 ‒ 8000	±3,5

Steel shafts with smaller length tolerances are also available at additional cost.

Concentric and axial spigot runout

A review in accordance with a specified principle will be performed upon request. Values xxx < 0.02 on request.

a) about 50 mm

Life expectancy calculation

Interconnected shafts – plug-and-socket connection

We also provide interconnectable steel shafts when more than the mill-cut length is needed. One shaft then comes with a spigot-and-recess arrangement, the next with a matching recess (see figure). The interconnected shaft must be supported throughout or at intervals, though generally at the joins (see Section "Shaft support rails"). The shafts must be under axial tension when fastening the shaft support rails so no gaps form at the joins. Linear bushings can simply be rolled over joints.

Directives and standards

Notes