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BOSCH REXROTH
R065804030


$144.87 USD
  • BOSCH REXROTH
  • Material:R065804030
  • Model:KBC-40-NR

Quantity in stock: 0

Note: Sales tax, and shipping will be calculated at checkout.
***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 COMPACT LIN. BUSH. KBC-40-NR (R065804030) is a high-quality compact linear bushing designed for general requirements with small outer dimensions and a highly compact construction. This model offers a high dynamic load rating and long service life, attributed to the hardened segmental load-bearing plates with ball conformity in the running track. The KBC-40-NR is characterized by its rust-resistant version, making it suitable for environments that demand higher resistance to corrosion, such as those found in the medical, chemistry, and food industries. With a standard radial clearance and non-greased setup, this linear bushing ensures low maintenance and is capable of high travel speeds of up to 5 meters per second. Its ease of mounting is one of its key features – it can be pressed on without the need for additional retention. The design includes many pockets that act as lubricant reservoirs which can extend lubrication intervals or potentially offer lubrication for life. These pockets also serve to collect any dirt ingress, thereby preventing jamming. The COMPACT LIN. BUSH. KBC-40-NR comes without seals and has an integrated metal retainer that is about 1 mm larger than the outer diameter of shaft diameters ranging from 3 to 50 mm to ensure a secure fit in the housing bore. It has a dynamic load capacity based on a total travel of 100 km; however, if based on 50 km, the capacity values should be multiplied by 1.26. This linear bushing's friction force starts at a minimum coefficient of 0.01 under heavy load conditions but may vary depending on load conditions. It operates within an ambient temperature range from -30°C up to +80°C and has an outer diameter D of 62 mm with a length of 80 mm. The product weighs approximately 0.4 kg and provides both minimum static and dynamic load capacities along with maximum capacities specified by Bosch Rexroth's standards for their Compact Series C products, ensuring reliability across various applications without compromising performance or durability.


Compact LB, 40, without seal, CR, not lubricated

Compact linear bushing
Shaft diameter d = 40
Without seal
Radial clearance: Standard
Version: Rust-resistant
Not greased

Unpacked Weight: 0.154 kg
Low-cost linear bushing for general requirements
Small outer dimensions and highly compact construction
High dynamic load rating and long service life due to hardened segmental load-bearing plates with ball conformity in the running track
Stainless steel for the medical, chemistry and food industries: Segmental load bearing plates comprising 1.4037 balls made from 1.3541
Integrated wiper seals, external seals or no wiper seals
Normal radial clearance
Not greased
High travel speed (5 m/s)
Simple mounting: Just press on – no additional retention needed
Many pockets acting as lubricant reservoirs for extended lubrication intervals or lubrication for life
Pockets collect any dirt that may have worked its way in to prevent the linear bushing from jamming.
Integrated metal retainer about 0.1 mm larger than outer diameter (shaft diameters 12 to 50) for secure fit in housing bore
Friction force3
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 balls6
SeriesCompact (C)
Footnote friction force FROne wiper seal: Multiply value with factor 0.5
Productgroup ID17
Maximum dynamic load capacity Cmax4470
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 D52
Breakaway force8
Permissible ambient temperature (min)-10
Maximum permissible linear speed vmax5
Size D52
Length of linear bushing60
Friction coefficient μ0,001 ... 0,004
Friction force FR footnote 2Frictional 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 forceOne wiper seal: Multiply value with factor 0.5
Minimum static load capacity C0min2510
Maximum static load capacity C0max3720
Minimum dynamic load capacity Cmin3520
Shaft diameter d40
Linear guide typeLinear bushing and shaft
Format of linear bushings– Closed
Filter for linear bushings and shaftsLinear bushings
Footnote minimum static load capacity C0min
Friction coefficient μ max.0.004
Footnote maximum static load capacity C0max
Weight0.154
Size D1 with tolerance
Size C60
Radial clearance shaft/bore h6/H7+42,-1

General technical data

Ø d

mm

8 10 12 14 16 20 25 30 40 50

amax

m/s²

150

vmax

m/s

5

m

kg

0.011 0.014 0.016 0.018 0.025 0.028 0.058 0.08 0.14 0.17

FR 1) 2)

N

0.4 0.5 0.8 0.9 1 1.5 2 2.5 3 4

Breakaway force 1)

N

0.8 1 1.5 1.8 2 3 4.5 6 8 10

μ 3)

0.001 ... 0.004

Rows of balls

4 5 6

Shaft radial clearance h6/bore H7

µm

+ 25
+ 2
+ 32
0
+ 33
- 1
+ 36
0
+ 42
- 1

Operating conditions

Permissible ambient temperature (min ... max)

-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.

Load capacities and load moments

Ød

mm

8 10 12 14 16 20 25 30 40 50

Cmin

N

350 420 510 530 660 780 1630 2140 3520 3970

Cmax

N

410 500 610 630 780 990 2050 2700 4470 5030

C0min

N

280 330 340 400 480 1050 1510 2510 2890

C0max

N

400 480 500 580 720 1560 2230 3720 4280
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-R065804030-Compact LB, 40, without seal, CR, not lubricated

Reduced load capacity with short stroke

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

technical illustration-R065804030-Compact LB, 40, without seal, CR, not lubricated
1) fs = factor
2) s = stroke

Definition of dynamic load ratings

Sealing

The sealed version contains integrated wiper seals.

Separate wiper seals are also available (no securing necessary).

technical illustration-R065804030-Compact LB, 40, without seal, CR, not lubricated

Dimensions

Ød

mm

8 10 12 14 16 20 25 30 40 50

D

mm

15 17 19 21 24 28 35 40 52 62

C

24 mm ±0.2 26 mm ±0.2 28 mm ±0.2 30 mm ±0.2 40 mm ±0.2 50 mm ±0.2 60 mm ±0.2 70 mm ±0.2

Life expectancy calculation

Installation

Install the Linear Bushings using an arbor press (see "Notes for mounting" below). If Linear Bushings are slightly skewed when initially installed into the housing bore, they will align themselves as they are pressed in. The Linear Bushing does not have to be removed and realigned.

Retention

Shaft diameter 8 and 10: The plastic outer sleeve is oversized. Additional retention is required for vibrations or high acceleration. Starting from shaft diameter 12: The outer diameter of the metal holding ring is oversized. No additional retention needed (bore length ≥  C).

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-R065804030-Compact LB, 40, without seal, CR, not lubricated

Lubrication

Directives and standards

Notes