BSHP Ball Runner Block SLS, standard, steel, with ball chain R1623 … 2.

Description

• Area of application: For restricted space in transverse direction
• For very high loads
• The same high load ratings in all four main directions of loading
• Long-term lubrication is possible over several years
• Limitless interchangeability as all Ball Rail Systems can be combined at will with all Ball Runner Block versions within each accuracy class.

Features

• High torque capacity
• Optimized entry-zone geometry and high number of balls minimize variation in elastic deflection
• Attachments on the Ball Runner Block can be mounted from above
• Integrated all-around sealing
• Minimum quantity lubrication system with integrated reservoir for oil lubrication
• End-face fastening thread for all attachments
• Can be used on all SNS/SNO Ball Guide Rails
• Excellent dynamic characteristics
• Different preload classes
• Ball chain for low noise level and best travel behavior

Product description

Friction

Due to the Rexroth design with four rows of balls, 2-point contact is available in all loading directions. This reduces the friction to a minimum.

Other ball rail systems with two or four rows of balls with 4-point contact have multiple friction: due to the differential slip with lateral loading and in case of comparable prestressing without the load, the gothic raceway profile causes higher friction (depending on the raceway curvature and the load, up to five times the friction coefficient). This high friction leads correspondingly to greater heat.

Seals

Seals are use to prevent dirt, chips and coolants, etc. from working their way into the inside of he Ball Runner Block, thereby preventing reductions to its service life. For further information, see "Selection criteria/seals".

Standard seal (SS)

Universal seals are fitted as standard in Rexroth Ball Runner Blocks. They have a uniform sealing effect for Ball Guide Rails with and without cover strips. Low friction and a good sealing effect have both been taken into account in the design. For applications where effective sealing is required.

Low-friction seal (LS)

For special requirements with regard to ease of movement.

Double-lip seal (DS)

For increased exposure to media

Front seal

For applications in environments with fine dirt or metal particles, as well as coolants or cutting fluids.

Interchangeable during servicing.

Front seals are available as accessories for mounting by the customer.

FKM seal

For applications in extreme environments with fine dirt or metal particles, as well as heavy use of coolants or cutting fluids.

Interchangeable during servicing.

FKM front seals are available as accessories for mounting by the customer.

Cover plate wiper

For use in environments with coarse dirt or chips.

Cover plate wiper are available as accessories for mounting by the customer.

Technical data

Load capacities and load moments

Size			15	20	25	30	35	45
C	N		11500	28200	34800	43800	63600	106000
C0	N		15600	38800	47300	62200	108000	177000
Mt	Nm		110	360	500	760	1370	2870
Mt0	Nm		150	500	670	1080	2320	4770
ML	Nm		110	330	500	710	1230	2630
ML0	Nm		150	460	670	1010	2090	4370

General technical data

Legend

General Notes

The general technical data and calculations apply to all Ball Rail Systems i.e. to all Ball Runner Blocks and Ball Guide Rails. Specific technical data relating to the individual Ball Runner Blocks and Ball Guide Rails is listed separately.

Preload classes

To cover the widest possible range of applications, Rexroth Ball Runner Blocks are available in different preload classes.

The following preload classes are available:

• Ball Runner Block without preload (preload class C0)

• Ball Runner Blocks with moderate preload (preload class C1)

• Ball Runner Blocks with average preload (preload class C2)

• Ball Runner Blocks with high preload (preload class C3)

To prevent reductions to the service life, the preload should not exceed 1/3 of the load on bearing F.

In general, the rigidity of the Ball Runner Block rises with increasing preload. If vibrations occur, select a correspondingly high preload (≥ preload class C2).

Guide systems with parallel rails

When choosing the preload class, pay attention to permissible parallelism offset of rails too ("Accuracy class selection criterion").

When specifying ball rail systems of accuracy class N, we recommend preload class C0 or C1 to avoid distortive stress due to the tolerances.

Diagrams/characteristic curves

Rigidity of ball rail system with preloading

Due to the large number of variants only one type is listed. Further rigidity diagrams are available on request.

Example

Ball runner blocks SLS

Slimline, long, standard height

Size 35:

a) Ball runner block R1623 31. 20 for preload C1

Resist NR: Ball runner block R2012 313 30 for preload C1

b) Ball runner block R1623 32. 20 for preload C2

c) Ball runner block R1623 33. 20 for preload C3

Preload

C1/C2/C3 = in accordance with table for preload force Fpr

Resist NR material numbers for the corresponding preload only

Key

δel = Elastic deformation (μm)

F = Load (N)

Dimensions

Project planning information

Mounting

Maintenance

Certification

Safety Instructions

Downloads

	Profiled rail systems Manual | R320103885_EN | 2016-09-01 | English | PDF | 11.5MB Product Groups: Linear guides
	Catalog BSHP Ball Rail Systems Catalog | R999000485 | 2020-10-01 | English | PDF | 15MB Product Groups: Ball Rail Systems only available as PDF