Predictika · Precision planetary gearheads

An AI sales agent's NP planetary gearhead order, checked before it goes out

An AI sales agent prepares an order for a motor-mounted planetary gearhead from the WITTENSTEIN alpha Value Line NP range: the size, the ratio, the standard or HIGH TORQUE version, the clamping hub and the motor shaft it must fit, and the torque, speed, side load and backlash the application needs. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the figures in the public NP catalog and returns a verdict, every reason and the figures it computed.

Scope: WITTENSTEIN alpha Value Line NP planetary gearheads (NP 005, 015, 025, 035, 045; MF and HIGH TORQUE versions): ratio by size, clamping hub and motor shaft, torque, speed, loads and backlash. See everything this validator covers

This validator models one NP gearhead order at a time, based on the public WITTENSTEIN alpha Value Line NP catalog (edition 04/2016), and handles any order that uses these gearheads, not just the scenarios shown below.

  • Size, ratio and stage — the five NP sizes and the 85 size and ratio pairs the catalog lists (the stage, one or two, follows from the ratio); a ratio the catalog does not list for that size is blocked.
  • Maximum torque and HIGH TORQUE — the maximum torque the catalog gives for each size and ratio; the HIGH TORQUE version exists only for NP 015, 025 and 035 and only at some ratios, with its own higher torque; the motor peak torque times the ratio must not exceed it, and the torque the order states must equal it.
  • Clamping hub and motor shaft — the hub bore diameters offered for each size and stage; the motor shaft must fit the bore, and a shaft smaller than the bore needs the 1 mm bushing the catalog describes.
  • Limits — emergency stop torque, maximum input speed (by size and stage), maximum radial and axial force and the standard backlash; food-grade lubrication, a shaft with key, and an axial force above a quarter of the radial force go to a person, as the catalog says to size those cases separately.

Any NP order that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (the catalog publishes none, so this page shows no price build-up), the NPS, NPL, NPR, NPT and NTP families and the K versions, motor adapter plates, the full cymex sizing (duty cycle, load factors and radial force distance), and ordering-code details.

The AI sales agentBuilds the gearhead order from the conversation and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

8 scenarios in 4 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
Ratios that exist only for some sizes (NP 025 lists 3 to 10 and 9 to 100 but not 6; NP 045 starts at 5)Only with workarounds
A table of 85 valid size and ratio pairs, kept in step with the catalog, with the stage worked out from it; a ratio that is fine on one size is silently wrong on the next.		Size and ratio arrive in one request and are checked against the listed pairs on every call.
Maximum torque that changes with the ratio, with a HIGH TORQUE version at some ratios onlyOnly with workarounds
The torque differs per size and per ratio, and HIGH TORQUE adds a second column that is empty for most ratios and for NP 005 and NP 045.		The torque for the chosen size, ratio and version is looked up on every call and compared with the motor torque times the ratio and with the figure the order states.
Hub bores that depend on size and stage, and a motor shaft that must fitOnly with care
Each size and stage has its own list of bores, and a shaft smaller than the bore needs a bushing at least 1 mm thick, so the shaft and bore interact.		Bore, shaft and stage are checked together, whatever order the choices were made in.
Limits that depend on size and stage (input speed, emergency stop torque, radial and axial force, backlash)Only with care
The same order meets different limits on one-stage and two-stage gearheads, and the radial limit counts a quarter of the axial force.		Every limit is computed from the selected size and ratio and compared on every call.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as the order is saved or a step is completed, so a person often fixes one error and meets the next.		All findings come back together, whatever order the choices arrived in.

  

  

    
What this validator catches: findings from its test cases
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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

    
1Ratio 6 is not offered for this NP size in the catalog.
2Ratio 3 is not offered for this NP size in the catalog.
3Ratio 9 is not offered for this NP size in the catalog.
4A clamping hub bore of 19 mm is not offered for this size and stage.
5A clamping hub bore of 24 mm is not offered for this size and stage.
6A clamping hub bore of 32 mm is not offered for this size and stage.
7The motor shaft of 16 mm does not fit a clamping hub bore of 14 mm.
8A motor shaft of 13 mm in a hub bore of 14 mm leaves less than the 1 mm bushing thickness the catalog requires.
9The HIGH TORQUE version is not listed for this size and ratio 5.
10The HIGH TORQUE version is not listed for this size and ratio 8.
11The HIGH TORQUE version is not listed for this size and ratio 10.
12The motor peak torque of 15.0 Nm times ratio 10 needs 150.0 Nm at the output; this gearhead gives 144 Nm.
13The motor peak torque of 66.0 Nm times ratio 3 needs 198.0 Nm at the output; this gearhead gives 128 Nm.
14The motor peak torque of 12.0 Nm times ratio 16 needs 192.0 Nm at the output; this gearhead gives 18 Nm.
15The emergency stop torque of 191 Nm exceeds the 190 Nm this size permits.
16The emergency stop torque of 27 Nm exceeds the 26 Nm this size permits.
17The input speed of 7,500 rpm exceeds the 7,000 rpm this size and stage permit.
18The input speed of 9,000 rpm exceeds the 7,000 rpm this size and stage permit.
19The input speed of 4,500 rpm exceeds the 4,000 rpm this size and stage permit.
20The radial force of 2,900 N plus a quarter of the axial force of 100 N exceeds the 2,800 N this size permits.
21The radial force of 2,700 N plus a quarter of the axial force of 500 N exceeds the 2,800 N this size permits.
22The radial force of 8,000 N plus a quarter of the axial force of 2,000 N exceeds the 2,800 N this size permits.
23The axial force of 2,000 N exceeds the 1,900 N this size permits.
24The axial force of 400 N is above a quarter of the radial force of 1,000 N; the catalog says to size such a case with cymex.

  

  

    
Scenarios and results
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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Motor torque and ratio: Packaging-machine servo axis on an NP 025 at ratio 10

    
The agent's request. Please quote an NP 025 planetary gearhead at ratio 10 for a servo motor with a 14 mm shaft and a peak torque of 18.0 Nm, on a 14 mm clamping hub. The application runs the input at 3,000 rpm, with an emergency stop torque of 100 Nm and a radial load of 500 N. It needs backlash of 8 arcmin or less, and the order states a maximum torque of 144 Nm. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Motor torque times ratio above the maximum torque. The motor peak torque of 18.0 Nm times ratio 10 needs 180.0 Nm at the output; this gearhead gives 144 Nm.
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2. Motor torque and ratio: The agent resubmits after fixing the errors

    
The agent's request. Please quote an NP 025 planetary gearhead at ratio 7 for a servo motor with a 14 mm shaft and a peak torque of 18.0 Nm, on a 14 mm clamping hub. The application runs the input at 3,000 rpm, with an emergency stop torque of 100 Nm and a radial load of 500 N. It needs backlash of 8 arcmin or less, and the order states a maximum torque of 160 Nm. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. NP025 gearhead, 1-stage, ratio 7; maximum torque 160 Nm; input speed up to 7,000 rpm; backlash up to 8 arcmin.
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3. Clamping hub bore: Gearhead for a motor with a 19 mm shaft, NP 015 at ratio 20

    
The agent's request. Please quote an NP 015 planetary gearhead at ratio 20 for a servo motor with a 19 mm shaft and a peak torque of 2.5 Nm, on a 19 mm clamping hub. The application runs the input at 3,000 rpm, with an emergency stop torque of 60 Nm and a radial load of 600 N. It needs backlash of 10 arcmin or less, and the order states a maximum torque of 56 Nm. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Clamping hub bore not offered. A clamping hub bore of 19 mm is not offered for this size and stage.
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4. Clamping hub bore: The agent resubmits after fixing the errors

    
The agent's request. Please quote an NP 025 planetary gearhead at ratio 20 for a servo motor with a 19 mm shaft and a peak torque of 2.5 Nm, on a 19 mm clamping hub. The application runs the input at 3,000 rpm, with an emergency stop torque of 60 Nm and a radial load of 600 N. It needs backlash of 10 arcmin or less, and the order states a maximum torque of 152 Nm. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. NP025 gearhead, 2-stage, ratio 20; maximum torque 152 Nm; input speed up to 8,000 rpm; backlash up to 10 arcmin.
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5. Input speed: High-speed servo axis at 9,000 rpm on an NP 025

    
The agent's request. Please quote an NP 025 planetary gearhead at ratio 10 for a servo motor with a 14 mm shaft and a peak torque of 2.5 Nm, on a 14 mm clamping hub. The application runs the input at 9,000 rpm, with an emergency stop torque of 60 Nm and a radial load of 400 N. It needs backlash of 10 arcmin or less, and the order states a maximum torque of 144 Nm. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Input speed above the maximum. The input speed of 9,000 rpm exceeds the 7,000 rpm this size and stage permit.
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6. Input speed: The agent resubmits after fixing the errors

    
The agent's request. Please quote an NP 015 planetary gearhead at ratio 20 for a servo motor with a 14 mm shaft and a peak torque of 2.5 Nm, on a 14 mm clamping hub. The application runs the input at 9,000 rpm, with an emergency stop torque of 60 Nm and a radial load of 400 N. It needs backlash of 10 arcmin or less, and the order states a maximum torque of 56 Nm. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Order summary. NP015 gearhead, 2-stage, ratio 20; maximum torque 56 Nm; input speed up to 10,000 rpm; backlash up to 10 arcmin.
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7. Side load: Axis with a heavy side load on an NP 025

    
The agent's request. Please quote an NP 025 planetary gearhead at ratio 10 for a servo motor with a 19 mm shaft and a peak torque of 12.0 Nm, on a 19 mm clamping hub. The application runs the input at 3,000 rpm, with an emergency stop torque of 100 Nm and a radial load of 3,000 N and an axial load of 400 N. It needs backlash of 8 arcmin or less, and the order states a maximum torque of 144 Nm. Include an output shaft with key. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Equivalent radial force above the limit. The radial force of 3,000 N plus a quarter of the axial force of 400 N exceeds the 2,800 N this size permits.
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  • Output shaft with key. A shaft with key reduces performance and the catalog says to size it with cymex; a person should confirm the sizing.
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8. Side load: The agent resubmits after fixing the errors

    
The agent's request. Please quote an NP 035 planetary gearhead at ratio 10 for a servo motor with a 19 mm shaft and a peak torque of 12.0 Nm, on a 19 mm clamping hub. The application runs the input at 3,000 rpm, with an emergency stop torque of 100 Nm and a radial load of 3,000 N and an axial load of 400 N. It needs backlash of 8 arcmin or less, and the order states a maximum torque of 352 Nm. Include an output shaft with key. It is ready to send.

    
Verdict: Needs approval.

    
    
      
  • Output shaft with key. A shaft with key reduces performance and the catalog says to size it with cymex; a person should confirm the sizing.
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  • Order summary. NP035 gearhead, 1-stage, ratio 10; maximum torque 352 Nm; input speed up to 6,000 rpm; backlash up to 8 arcmin.
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Narration transcript
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The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares an order for a motor-mounted planetary gearhead from the WITTENSTEIN alpha Value Line NP range: the size, the ratio, the standard or HIGH TORQUE version, and more. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the figures in the public NP catalog and returns a verdict, every reason and the figures it computed.
    2. 
      
  2. I will start with the first request by the agent.
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  3. The agent says. Please quote an NP 025 planetary gearhead at ratio 10 for a servo motor. The application runs the input at 3,000 rpm, with an emergency stop torque of 100 Nm and a radial load of 3,000 N and an axial load of 400 N. The rest of the request is on screen.
    4. 
      
  4. Before it goes out, the agent calls the validator.
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  5. Blocked, with one finding and one approval, all in one answer. The radial force of 3,000 N plus a quarter of the axial force of 400 N exceeds the 2,800 N this size permits.
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  6. The validator returned one blocking finding and one approval in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other.
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  7. What this shows: for limits that depend on size and stage (input speed, emergency stop torque, radial and axial force, backlash), a rules-based CPQ is error-prone for this.
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  8. Now the agent resubmits.
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  9. The corrected request. It changes the gearhead to NP 035 and the stated maximum torque as to 352 Nm.
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  10. It calls the validator again.
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  11. Not blocked, but held for a person.
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  12. The one blocking finding is cleared; one approval remains for a person: output shaft with key.
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  13. Two problems caught in one call, fixed in one pass, and the corrected quote now goes to a person for approval. That is the value of Predictika's validator: catching mistakes before they reach the customer. Now you can try the other scenarios yourself.
    14.