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Motion Index Drives, Inc.
RTX Rotary Index Tables

RTX Rotary Index Tables

Product catalog summary

Overview

This document details the technical specifications, mechanical dimensions, load capacities, precision parameters, and performance data for the RTX series rotary indexers, covering models RTX350 through RTX900. These devices are precision rotary indexing tables used in automation and manufacturing for accurate positioning.

1. General Specifications

Models covered include RTX350, RTX450, RTX550, RTX650, RTX750, and RTX900.
Number of indexes (stops) per 360° ranges from 2 up to 36, with custom options available.
Standard drive motors vary by model, typically IEC sizes from IEC56 up to IEC90.
Voltage is standard 230/400 V, with other voltages available on request.
Power ranges from 0.06 kW (RTX350) up to 3 kW (RTX900).
Load fitting positions supported include upside down, horizontal, and vertical orientations.

2. Mechanical Dimensions and Load Capacities

Key dimensional data and load capacities are summarized below:

Model	Output Flange Diameter (mm)	Overall Height (mm)	Center Opening Diameter (mm)	Recommended Max Rotating Plate Diameter (mm)	Index Table Weight (kg)
RTX350	105	90	18	600	15
RTX450	125	112	22	800	30
RTX550	160	120	40	1000	24
RTX650	185	140	50	1300	38
RTX750	240 (approx.)	160	60	1800	85
RTX900	285	174	80	2200	125

Load capacities include radial and axial forces, torque, and tilting moments, increasing with model size. For example, RTX350 supports radial force up to 10 kN and torque 376 Nm, while RTX900 supports radial force up to 22 kN and torque 1572 Nm.

3. Precision and Runout

Axial and radial runout on output flange diameter ranges from 0.01 mm (higher models) to 0.015 mm (mid-range models).
Indexing accuracy improves with model size: ±45" (RTX350), ±35" (RTX450), ±30" (RTX550), ±25" (RTX650), ±20" (RTX750), and ±16" (RTX900).
Higher accuracy achievable with selected components.
Division error increases by a factor of 1.5 for index counts of 16 or more due to multi-point locking cams.

4. Load Forces and Moments

Load parameters are provided for both static (FrA, FaA, MkA) and dynamic (FrM, FaM, MkM) conditions. For example:

RTX350: Radial force 10 kN, axial force 11 kN, torque 376 Nm, tilting moment 0.6 kNm.
RTX450: Radial force 17.5 kN, axial force 20 kN, torque 322 Nm, tilting moment 1.3 kNm.
RTX550 to RTX900 models show increasing load capacities, e.g., RTX900 radial force 22 kN, axial force 25 kN, torque 1572 Nm, tilting moment 3.5 kNm.

Note: Combined loads and process forces must be confirmed with the manufacturer (Motion Index Drives) to ensure safe operation.

5. Performance and Dynamic Data

Detailed tables provide step times (t in seconds) and mass moments of inertia (JMax, JL, J) for various stop counts and speed steps. Definitions:

JMax: Base plate plus fixtures without motor and lifetime consideration.
JL: Includes lifetime effects on base plate and fixtures.
J: Includes motor plus base plate and fixtures.

From 16 stops onward, the output flange steps multiple times per cam revolution (2 times at 16 stops, 3 times at 36 stops), which affects division error and dynamic behavior.

6. Dimensional Details and Mounting

Mechanical drawings specify bolt hole patterns, flange diameters, radii, and tolerances (e.g., H7, H11 fits), following DIN standards such as DIN 6885 and DIN 332. Bolt sizes and quantities vary by model and number of stops. Proper mounting and fitting positions (upside down, horizontal, vertical) are critical for maintaining precision and durability.

7. Recommendations and Best Practices

Confirm combined loads and process forces with Motion Index Drives before application.
Select components carefully to achieve required indexing accuracy.
Consider mass moment of inertia and step time data to optimize performance and avoid overloading.
Follow specified mounting orientations and standards to ensure longevity and precision.
Voltage and motor sizes can be customized upon request.

8. Contact Information

Motion Index Drives
1204 East Maple Troy MI 48083
Phone: 248-743-9999
Fax: 248-743-0749
Email: [email protected]
Website: www.motionindexdrives.com

Summary

The RTX series rotary indexers provide a range of precise, robust solutions for rotary indexing in automated machinery. This document consolidates essential mechanical, load, precision, and dynamic performance data to assist engineers in selecting and integrating the appropriate model for their application, ensuring accuracy, reliability, and safe operation.

Catalog excerpts

* Dimensions depend on the used drive

Open the catalog to page 2

Fitting position Load on output flange Load on central column Torque on output flange [Nm] 10 Axial runout on the output flange 0 [mm] * Increased indexing accuracy accessible through selected components From division 16, the division error due to multi-point locks on the drive cam is larger by a factor of 1.5“ Combined loads and possible process forces must be confirmed by Motion Index Drives. Standard drive Motor size

Open the catalog to page 3

Load table RTX350 n = Number of stops / 360° revolution of output flange t = Step time in [s] JMax = Mass moment of inertia (base plate + fixtures and parts) in [Kgm2] Without motor and lifetime JL = Mass moment of inertia by life time (base plate + fixtures and parts) in [Kgm2] J = Mass moment of inertia with motor (base plate + fixtures and parts) in [Kgm2] From n=16 The output flange steps 2 times per cam revolution From n=36 The output flange steps 3 times per cam revolution

Open the catalog to page 4

* Dimensions depend on the used drive

Open the catalog to page 5

Fitting position Load on output flange Radial force F,a [N] 17.5 Axial force F3a [kN] 20 Torque on output flange [Nm] 322 Load on central column Precision Axial runout on the output flange 0 [mm] * Increased indexing accuracy accessible through selected components From division 16, the division error due to multi-point locks on the drive cam is larger by a factor of 1.5“ Axial force FaM [kN] 18 Torque on output flange [Nm] 77 Combined loads and possible process forces must be confirmed by Motion Index Drives. Standard drive Output flange 0 Motor size

Open the catalog to page 6

Load table RTX450 n = Number of stops / 360° revolution of output flange t = Step time in [s] JMax = Mass moment of inertia (base plate + fixtures and parts) in [Kgm2] Without motor and lifetime JL = Mass moment of inertia by life time (base plate + fixtures and parts) in [Kgm2] J = Mass moment of inertia with motor (base plate + fixtures and parts) in [Kgm2] From n=16 The output flange steps 2 times per cam revolution From n=36 The output flange steps 3 times per cam revolution

Open the catalog to page 7

Position of the hole pattern in the output flange Stop number Further stop numbers you can find in the RTF/RTX550 dimension sheet at our website. * Dimensions depend on the used drive

Open the catalog to page 8

Fitting position Load on output flange Radial force FrA [kN] 23 Axial force FaA [N] 18.4 Torque on output Precision Axial runout on the output flange 0 [mm] * Increased indexing accuracy accessible through selected components From division 16, the division error due to multi-point locks on the drive cam is larger by a factor of 1.5“ Axial force FaM [kN] 18 Torque on output flange [Nm] 77 Combined loads and possible process forces must be confirmed by Motion Index Drives. Standard drive Output flange 0 Motor size

Open the catalog to page 9

Load table RTX550 n = Number of stops / 360° revolution of output flange t = Step time in [s] JMax = Mass moment of inertia (base plate + fixtures and parts) in [Kgm2] Without motor and lifetime JL = Mass moment of inertia by life time (base plate + fixtures and parts) in [Kgm2] J = Mass moment of inertia with motor (base plate + fixtures and parts) in [Kgm2] From n=16 The output flange steps 2 times per cam revolution From n=36 The output flange steps 3 times per cam revolution

Open the catalog to page 10

Fitting position Load on output flange Radial force FrA [kN] 20 Axial force FaA [kN] 22.5 Torque on Precision Axial runout on the output flange 0 [mm] * Increased indexing accuracy accessible through selected components From division 16, the division error due to multi-point locks on the drive cam is larger by a factor of 1.5“ Axial force FaM [kN] 14 Torque on output flange [Nm] 170 Combined loads and possible process forces must be confirmed by Motion Index Drives. Standard drive Output flange 0 Motor size

Open the catalog to page 12

Load table n = Number of stops / 360° revolution of output flange t = Step time in [s] JMax = Mass moment of inertia (base plate + fixtures and parts) in [Kgm2] Without motor and lifetime JL = Mass moment of inertia by life time (base plate + fixtures and parts) in [Kgm2] J = Mass moment of inertia with motor (base plate + fixtures and parts) in [Kgm2] From n=16 The output flange steps 2 times per cam revolution From n=36 The output flange steps 3 times per cam revolution

Open the catalog to page 13

* Dimensions depend on the used drive

Open the catalog to page 14

Fitting position Load on output flange Load on central column Axial runout on the output flange 0 [mm] Radial force FrM [kN] 3.8 Axial force FaM [kN] 15 Torque on output * Increased indexing accuracy accessible through selected components From division 16, the division error due to multi-point locks on the drive cam is larger by a factor of 1.5" Standard drive Motor size

Open the catalog to page 15

Load table RTX750 n = Number of stops / 360° revolution of output flange t = Step time in [s] JMax = Mass moment of inertia (base plate + fixtures and parts) in [Kgm2] Without motor and lifetime JL = Mass moment of inertia by life time (base plate + fixtures and parts) in [Kgm2] J = Mass moment of inertia with motor (base plate + fixtures and parts) in [Kgm2] From n=16 The output flange steps 2 times per cam revolution From n=36 The output flange steps 3 times per cam revolution

Open the catalog to page 16

* Dimensions depend on the used drive

Open the catalog to page 17

Fitting position Load on output flange Load on central column Axial runout on the output flange 0 [mm] * Increased indexing accuracy accessible through selected components From division 16, the division error due to multi-point locks on the drive cam is larger by a factor of 1.5“ Axial force FaM [kN] 25 Torque on output flange [Nm] 450 Combined loads and possible process forces must be confirmed by Motion Index Drives. Standard drive Output flange 0 Motor size

Open the catalog to page 18

Load table RTX900 n = Number of stops / 360° revolution of output flange t = Step time in [s] JMax = Mass moment of inertia (base plate + fixtures and parts) in [Kgm2] Without motor and lifetime JL = Mass moment of inertia by life time (base plate + fixtures and parts) in [Kgm2] J = Mass moment of inertia with motor (base plate + fixtures and parts) in [Kgm2] From n=16 The output flange steps 2 times per cam revolution From n=36 The output flange steps 3 times per cam revolution

Open the catalog to page 19