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BOSCH REXROTH
R066801200


$28.43 USD
  • BOSCH REXROTH
  • Material:R066801200
  • Model:SEGMT.LINEAR BUSH. KBSE-12

Quantity in stock: 1

***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 SEGMT.LINEAR BUSH. KBSE-12 (R066801200) is a high-quality segmental linear bushing designed for linear motion applications. This closed-type bushing is engineered without a seal, making it suitable for standard applications where separate wiper seals are optional, depending on the environmental conditions and requirements of the application. The KBSE-12 features hardened segmental load-bearing plates and balls constructed from rolling bearing steel, ensuring durability and a smooth motion. With a shaft diameter of 12mm, this linear bushing is crafted to provide reliable performance in various settings. The ball retainer and retaining rings are made from PA (polyamide), which contributes to the unit's robustness and longevity. It boasts an impressive maximum dynamic load capacity (Cmax), with specific values available upon evaluation of travel distance, as longer travel increases the load capacity. The Bosch Rexroth KBSE-12 operates efficiently within a permissible ambient temperature range of -30°C to 80°C. Its design allows for maximum acceleration (amax) and speed (vmax) within its operational limits, ensuring that it can handle the demands of various dynamic applications. Furthermore, the product has been tested for friction force and coefficient under different conditions, providing users with predictable performance metrics. This linear bushing's outer diameter is finely tuned for compatibility with corresponding components, while its breakaway force ensures stability at startup. It also offers a range of static and dynamic load capacities (Cmin and Cmax), guaranteeing that it can meet both minimum and maximum requirements for static and dynamic stresses. Weighing in at just 0.04kg, the Bosch Rexroth SEGMT.LINEAR BUSH. KBSE-12 provides an efficient solution without adding significant weight to your assembly. Its radial clearance specifications are meticulously defined to ensure precise fitment with compatible shafts, making this bushing an ideal choice for those seeking reliable linear guidance with high-quality standards synonymous with Bosch Rexroth engineering.


Segmental LB, closed, 12, without seal, standard

Segmental linear bushing
Closed
Shaft diameter d = 12
Without seal
Version: Standard

Unpacked Weight: 0.01583 kg
Designed especially for general requirements
Separate wiper seals optional
Hardened segmental load bearing plates
Balls made of rolling bearing steel
Ball retainer and retaining rings made of PA 11
Friction force1.5
Footnote minimum dynamic load capacity CminThe 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 CmaxThe 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.
Rows of balls5
SeriesSegment
Footnote friction force FRFrictional drags generated by linear bushings with seals on both ends when not under radial load. This depends on speed and lubrication.
Productgroup ID17
Maximum dynamic load capacity Cmax570
Permissible ambient temperature (max)+80
Max. acceleration amax150
Footnote friction coefficient μFriction 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 D20
Breakaway force3
Permissible ambient temperature (min)-10
Maximum permissible linear speed vmax3
Size C js1424
Size D20
Friction coefficient μ0,001 ... 0,004
Minimum static load capacity C0min420
Maximum static load capacity C0max620
Minimum dynamic load capacity Cmin480
Shaft diameter d12
Linear guide typeLinear bushing and shaft
Filter for linear bushings and shaftsLinear bushings
Format of linear bushings– Closed
Footnote minimum static load capacity C0min
Friction coefficient μ max.0.004
Footnote maximum static load capacity C0max
Weight0.01583
Size D1 with tolerance
Radial clearance shaft h6/bore K7+17,-15
Radial clearance shaft/bore h6/H7+32,0

General technical data

Ø d

mm

12 16 20 25 30 40

amax

m/s²

150

vmax

m/s

3

m

kg

0.013 0.02 0.031 0.057 0.096 0.17

FR 1)

N

1.5 2 2.5 3 4 5

Breakaway force

N

3 4.5 5 7 9 12

μ 2)

0.001 ... 0.004

Rows of balls

5 6

Shaft radial clearance h6/bore H7

µm

+ 32
0
+ 33
- 1
+ 36
0
+ 42
- 1

Shaft radial clearance h6/bore K7

µm

+ 17
- 15
+ 18
- 16
+ 18
- 18
+ 21
- 22

Operating conditions

Permissible ambient temperature (min ... max)

-10 °C ... +80 °C
1) Frictional drags generated by Linear Bushings with seals on both ends when not under radial load. This depends on speed and lubrication.
2) 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.

Load capacities and load moments

Ød

mm

12 16 20 25 30 40

Cmin

N

480 720 1020 1630 2390 3870

Cmax

N

570 860 1080 1730 2530 4100

C0min

N

420 620 870 1360 1960 3270

C0max

N

620 910 1120 1750 2510 4180
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

Effect of load direction on load rating

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-R066801200-Segmental LB, closed, 12, without seal, standard

Reduced load capacity with short stroke

In case of a short stroke, the service life of the shaft is less than that of the segmental Linear Bushing. The load ratings C specified in the tables must therefore be multiplied by the factor f.s .

technical illustration-R066801200-Segmental LB, closed, 12, without seal, standard

Definition of dynamic load ratings

technical illustration-R066801200-Segmental LB, closed, 12, without seal, standard

Dimensions

Ød

mm

12 16 20 25 30 40

D

mm

20 25 30 37 44 56

C

js14

mm

24 28 30 37 44 56

Selection guide for operation under difficult conditions

For constantly humid or damp conditions caused, for instance, by water-based coolants/lubricants, we recommend the stainless steel Linear Bushing with parts made of steel in accordance with ISO 683-17 / EN 10088.

Life expectancy calculation

Installation

Install the segmental Linear Bushings using an arbor press (see General Installation Instructions). In order to prevent contamination in the segmental Linear Bushing, we recommend making sure that a segmental load bearing plate is covered by the slot when installing in slotted receivers.

Fixation

technical illustration-R066801200-Segmental LB, closed, 12, without seal, standard technical illustration-R066801200-Segmental LB, closed, 12, without seal, standard

a) Secured with wiper seal

b) Secured with metal case

General mounting instructions

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.

technical illustration-R066801200-Segmental LB, closed, 12, without seal, standard

Lubrication

Wiper seals for Segmental Linear Bushings

technical illustration-R066801200-Segmental LB, closed, 12, without seal, standard

Wiper seals for Segmental Linear Bushings

Metal case Elastomer wiper seal For axial securement.

Catalog

Instructions

Service

CAD data

Metal cases for Segmental Linear Bushings

technical illustration-R066801200-Segmental LB, closed, 12, without seal, standard

Metal cases for Segmental Linear Bushings

Normal (galvanized) For axial securement.

Catalog

Instructions

Service

CAD data

Directives and standards

Notes