BOSCH REXROTH
R060203010

$143.50 USD

BOSCH REXROTH
Material:R060203010
Model:KBM-30-DD

Quantity in stock: 0

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***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 STD.LINEAR BUSHING KBM-30-DD (R060203010) is a robust, high-quality linear motion component designed for use in demanding industrial environments. This standard metal linear bushing features a closed design with two seals, ensuring reliable operation even in harsh conditions such as woodworking, foundries, and cement plants. The KBM-30-DD is engineered with a steel ball retainer that accommodates heavy contamination and provides extended lubrication intervals or even lubrication for life. Its numerous pockets act as reservoirs for lubricants and also serve to collect dirt, preventing the bushing from jamming. The outer sleeve of the KBM-30-DD is hardened and ground for durability, while the balls are made from rolling bearing steel to ensure smooth motion. The bushing's design allows for self-supporting shafts and it comes equipped with integrated steel retaining rings instead of wiper seals, which permits operation at higher temperatures for shaft diameters 30 mm and above. The product features a dynamic load capacity that varies based on the total travel distance, with specific multipliers provided for different travel lengths. With an outer diameter of D = 45 mm and a weight of 0.3 kg, the KBM-30-DD has been meticulously crafted to provide reliable performance under varying loads and speeds. Its friction coefficient ranges from 0.01 to 0.025 under optimal lubrication conditions, contributing to efficient operation with minimal resistance. Designed as part of Bosch Rexroth's standard metal series of linear bushings, this model is an essential component for linear guide systems requiring precise motion control in challenging industrial applications. Its construction ensures longevity and consistent performance, making it an ideal choice for engineers looking to optimize their machinery's linear motion capabilities.

Standard LB, closed, 30, with two seals

Standard linear bushing
Standard (metal)
Closed
Shaft diameter d = 30
With two seals
Version: Standard

Unpacked Weight: 0.302 kg

Rugged all-metal design with steel ball retainer for harsh environments and heavy contamination
Many pockets acting as lubricant reservoirs for extended lubrication intervals or lubrication for life
Steel ball retainer (shaft diameters 3, 4 and 10 with plastic strip made of POM and shaft diameters 5 and 8 made of PA)
Closed, for self-supporting shafts
Balls made of rolling bearing steel
For use in woodworking, foundries, cement plants
Pockets collect any dirt that may have worked its way in to prevent the linear bushing from jamming.
No wiper seals, come with integrated steel retaining rings; higher temperatures allowed with shaft diameters 12 and higher
Hardened and ground outer sleeve

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Rows of balls	6
Footnote shaft radial clearance h6	Determined from working bore diameter and shaft tolerance statistics. Recommended housing bore tolerance: H6 or H7.
Series	Standard (metal)
Footnote friction force FR	One wiper seal: Multiply value with factor 0.5
Size C1 H13	51.7
Maximum dynamic load capacity Cmax	2980
Footnote permissible ambient temperature (min ... max)	Higher temperatures are only admissible at linear bushings without wiper seals with ball retainers made of steel. Make allowance for reductions in load capacity.
Max. acceleration amax	100
Footnote friction coefficient μ	Friction coefficients of unsealed linear bushings when lubricated with oil. The friction coefficient is lowest under heavy load, but can still be above the specified value even under a low load.
Permissible ambient temperature	-10 °C ... +80 °C
Outer diameter D	47
Breakaway force	18
Maximum permissible linear speed vmax	2.5
Size D	47
Size D1	44.5
Friction coefficient μ	0,001 ... 0,004
Size C h12	68
Size C2	1.85
Friction coefficient μ max.	0.004
Friction force	6
Footnote minimum dynamic load capacity Cmin	The dynamic load capacities are based on a total travel of 100,000 m. When based on 50,000 m, the C values in the table are to be multiplied by 1.26.
Friction coefficient μ min.	0.001
Footnote maximum dynamic load capacity Cmax	The dynamic load capacities are based on a total travel of 100,000 m. When based on 50,000 m, the C values in the table are to be multiplied by 1.26.
Productgroup ID	17
Permissible ambient temperature (max)	+80
Permissible ambient temperature (min)	-10
Friction force FR footnote 2	Frictional drags generated by linear bushings with integrated wiper seals on two sides when not under radial load. The frictional drags depend on speed and lubrication.
Footnote breakaway force	One wiper seal: Multiply value with factor 0.5
Minimum static load capacity C0min	2230
Maximum static load capacity C0max	2860
Minimum dynamic load capacity Cmin	2820
Shaft diameter d	30
Linear guide type	Linear bushing and shaft
Filter for linear bushings and shafts	Linear bushings
Format of linear bushings	– Closed
Footnote minimum static load capacity C0min
Footnote maximum static load capacity C0max
Weight	0.302
Size D1 with tolerance	44.5 mm

General technical data

Ø d	mm	3	4	5	8	10	12	16	20	25	30	40	50	60	80
amax	m/s²	100											50
vmax	m/s	2.5											2
m	kg	0.001	0.002	0.01	0.02	0.03	0.04	0.05	0.1	0.19	0.32	0.62	1.14	2.11	4.7
FR	N	-		0.4 1) 2)	0.5 1) 2)	1 1) 2)	2 1) 2)	3 1) 2)	4 1) 2)	5 1) 2)	6 1) 2)	8 1) 2)	10 1) 2)	12 1) 2)	15 1) 2)
Breakaway force	N	-		0.8 1)	1 1)	2 1)	6 1)	9 1)	12 1)	14 1)	18 1)	24 1)	30 1)	36 1)	45 1)
μ 3)		0.001 ... 0.004
Rows of balls		4							5		6
Working bore diameter tolerance	µm	+ 8 0		+ 11 + 1	+ 12 + 2	+ 8 0	+ 12 + 2	+ 14 + 2		+ 16 + 2		+ 19 + 2			+ 24 + 2
Shaft radial clearance h6 4)	µm	+ 12 + 2	+ 14 + 2	+ 16 + 4	+ 18 + 5		+ 20 + 5	+ 22 + 5	+ 23 + 6	+ 25 + 6		+ 30 + 7		+ 33 + 7	+ 37 + 8
Operating conditions
Permissible ambient temperature (min ... max) 5)		-10 °C ... +80 °C

1)	One wiper seal: Multiply by a factor of 0.5.
2)	Frictional drags generated by Linear Bushings with integrated wiper seals on two sides when not under radial load. The frictional drags depend on speed and lubrication.
3)	Friction coefficients of unsealed Linear Bushings when lubricated with oil. The friction coefficient is lowest under heavy load, but can still be above the specified value even under a low load.
4)	Determined from working bore diameter and shaft tolerance statistics. Recommended housing bore tolerance: H6 or H7.
5)	Only unsealed Linear Bushings with steel ball retainers may be used at higher temperatures. Make allowance for reductions in load capacity.

Load capacities and load moments

Ød	mm	3	4	5	8	10	12	16	20	25	30	40	50	60	80
Cmin	N	55	70	180	320	300	420	580	1170	2080	2820	5170	8260	11500	21000
Cmax	N	65	80	210	370	350	480	670	1390	2480	2980	5480	8740	12100	22200
C0min	N	45	60	140	240	260	280	440	860	1560	2230	3810	6470	9160	16300
C0max	N	65	85	200	330	370	400	620	1250	2280	2860	4880	8280	11730	20850

	The load ratings are based on a total travel of 100, 00 m. When based on 50 000 m, the values in the table need to be multiplied by 1.26.

Legend

Symbol	Description	Unit
Ød	Shaft diameters	mm
amax	Maximum acceleration travel	m/s2
Cmax	Maximum dynamic load rating	N
Cmin	Minimum dynamic load rating	N
C0max	Maximum static load rating	N
C0min	Minimum static load rating	N
FR	Friction force	N
m	Mass	kg
vmax	Maximum permissible speed	m/s
μ	Friction coefficient

Impact of load direction on load rating of closed Linear Bushings

The listed load ratings should be chosen depending on installation in minimum or maximum position and should be based on the calculations. If the load direction is clearly defined and the Linear Bushings can be installed in maximum position, the load ratings Cmax. (dynamic load rating) and C0 max (static load rating) can be used. If aligned installation is not possible or the load direction is not defined, the minimum load ratings must be used.

technical illustration-R060203010-Standard LB, closed, 30, with two seals

Definition of dynamic load ratings

Installation dimensions/interchangeability

Standard Linear Bushings have the same installation dimensions as super Linear Bushings. They are interchangeable, differ however in terms of securing, radial clearance, load ratings and lubrication.

Sealing

Standard Linear Bushings come with a wiper seal with shaft diameters of 5 and higher. Open standard Linear Bushings with shaft diameters 20 to 80 can also come fully sealed (with longitudinal seal; increased friction).

Dimensions

Ød		mm	3	4	5	8	10	12	16	20	25	30	40	50	60	80
D		mm	7	8	12	16	19	22	26	32	40	47	62	75	90	120
C	h12	mm	10	12	22	25	29	32	36	45	58	68	80	100	125	165
C1	H13	mm	-		14.2	16.2	21.6	22.6	24.6	31.2	43.7	51.7	60.3	77.3	101.3	133.3
C2		mm	-		1.1		1.3			1.6	1.85		2.15	2.65	3.15	4.15
D1		mm	-		11.1	14.7	18	20.5	24.9	30.5	38.5	44.5	58	71	85	114

Life expectancy calculation

General mounting instructions

Customer-built housings

Initial lubrication

Linear bushings do not come with initial lubrication. Grease the Linear Bushings before use. Service life data is based on initial lubrication and relubricated Linear Bushings.