General technical notes and information Roller Rail Systems

Description

• Uniform roller guide rails with and without cover strips allow limitless interchangeability across all roller runner block variants.
• Lube ports on all sides for maximum ease of maintenance
• Minimum lubrication quantities thanks to innovative channel design
• Quiet running thanks to optimally designed roller return and guidance
• Maximum rigidity under load from all directions through two additional mounting screw holes at the center of the roller runner block

Product description

Components and their materials

Roller Runner Block formats

Roller runner block formats

FNS - flanged, normal, standard height	FLS - flanged, long, standard height	SNS - slimline, normal, standard height	SLS - slimline, long, standard height
SNH - slimline, normal, high	SLH - slimline, long, high	FXS - flanged, extralong, standard height

Optimum design of roller guide – heavy-duty roller runner block

Quiet running thanks to optimally designed roller return and guidance

Roller Guide Rail formats

Application example

Corrosion protection is optional

Corrosion-resistant Roller Runner Blocks and Roller Guide Rails in Resist CR, hard chrome plated, available in accuracy class H and in accuracy classes P and SP on request.

Gaskets

The sealing plate on the front side (1) protects the interior of the Ball Runner Block against dirt, chips and fluids. Additionally, it prevents the discharge of lubricant. Due to the optimized form of the sealing lips, the occurring friction is reduced to a minimum. Sealing plates are optionally available with black standard sealings (SS) or green double-lip gaskets (DS).

Double-lip gasket DS (gasket with very good sealing effect)

For applications in which the rail system is heavily charged with chips, wood dust, cooling lubricants etc., Rexroth recommends the double-lip gasket. It comprises an excellent wiping action but a greater friction force and lower relubrication interval.

In preparation:

Standard seal SS (universal sealing with good sealing effect)

For most application cases, the standard seal is suitable. It comprises of a good wiping action but also enables long relubrication intervals.

Sealing effect and displacement resistance

The displacement resistance can be impacted by the geometry and the material. The diagram shows the effects of different sealing versions on the sealing effect and the displacement resistance.

Longitudinal seal

• Area of use: Installation positions, horizontal over-head and wall installation

• Advantage: Early failure of the Runner Block is avoided

• Sealing lip above the complete Runner Block length (including fins for the front-side sealing)

• Sealing lip with sharp edges for optimizing the friction

• Upright, pre-tensioned sealing lip for a targeted deflection of dirt away from the sealing edge.

• Fixing via retaining plate (secured with screws)

• Optimum fastener at the Runner Block with 4 screws each

• High level of rigidity and clamping with edged retaining plate

Technical data

Definition of preload class

The preload class is the pre-tensioning force Fpr based on the dynamic load rating C of the particular roller runner block.

Selection of the preload class

Recommended combination based on preload and accuracy class

Recommendation for preload C2: Accuracy classes H and P

Recommendation for preload C3: Accuracy classes P, SP, GP and UP

Combination of hard chrome plated Roller Runner Block with hard chrome plated Roller Guide Rails

Upon combination of hard chrome plated Roller Runner Blocks with preload C2 or C3 and hard chrome plated Roller Guide Rails, the preload increases by approx. half a preload class.

Preload force Fpr (N)

Mounting

Maintenance

Certification

Safety Instructions

Downloads

	Profiled rail systems Manual | R320103885_EN | 2016-09-01 | English | PDF | 11.5MB Product Groups: Linear guides
	Catalog Roller Rail Systems Catalog | R999000354 | 2021-10-01 | English | PDF | 23.5MB Product Groups: Roller Rail Systems only available as PDF file