NICE / APOLLO SPAMG311A00A M3BARR10 First Stage Gear Kit
The Nice Apollo SPAMG311A00A first stage kit is a gearbox repair component for the M3BARR10 barrier operator. The first stage is one of the first points of mechanical reduction after the motor drive, so it has to mesh correctly with the rest of the gearbox. This part is generally ordered when the installed M3BARR10 shows confirmed first-stage damage, gear noise, loss of drive, or internal wear after inspection. It is not the same as the M5BAR primary stage kit, and it should not be selected by appearance alone. A technician should inspect the full drive path, barrier arm balance, and spring system to make sure another mechanical issue did not cause the gear failure.
Compatible With
- Nice Apollo M3BARR10 barrier operator
- M3BAR / M3BARR10 applications when the parts diagram specifies SPAMG311A00A
- Nice M-Bar barrier service applications using this first stage kit
- Not interchangeable with SPAMG119A00A M5BAR gear kit unless separately documented
- Not a universal M5BAR, M7BAR, LBAR, or Juno gear kit
Features & Specifications
| Manufacturer | Nice Apollo |
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| Product Type | First stage gear kit |
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| Part Number | SPAMG311A00A |
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| Application | M3BARR10 barrier gearbox repair |
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| Compatible Operator Type | Barrier arm gate operator |
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| Related Operator Family | Nice Apollo M-Bar / M3BARR10 |
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| Notes | Match by parts diagram and gearbox stage |
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Also Known As / Related Part Numbers
Technician Note
Before replacing the first stage kit, inspect the mating gears and shafts. A gear failure may come from a collision, unbalanced barrier arm, damaged spring assembly, or worn downstream gearbox components.
Before Ordering
- Confirm the operator is M3BARR10 or the exact parts diagram calls for SPAMG311A00A.
- Do not substitute the M5BAR SPAMG119A00A gear kit.
- Inspect the complete gearbox before replacing one stage.
- Check barrier arm balance and spring condition.
- Test limits and safety operation after repair.
Professional Advisory
Barrier gearbox repairs affect arm movement and stopping accuracy. A qualified gate technician should complete the repair and verify safe operation before returning the lane to service.
Important Ordering Warnings
- First stage gear kits are model-specific. Incorrect gears can bind, strip, or damage the operator.
Product Questions & Answers
What does SPAMG311A00A fit?
SPAMG311A00A is used as a first stage kit for the Nice Apollo M3BARR10 barrier gearbox application.
Is it interchangeable with SPAMG119A00A?
No. SPAMG311A00A and SPAMG119A00A are different first-stage gear kit references and should not be substituted unless Nice documentation confirms it.
Is this a full M3BAR gearbox?
No. This is a first stage kit, not a complete gearbox, motor, or barrier chassis.
When would this kit be needed?
It is typically considered when the first drive stage in the M3BARR10 gearbox is worn, damaged, noisy, or stripped.
What should be checked before replacing it?
Check the gearbox, motor drive, arm balance, spring setup, and any impact damage before replacing only one gear stage.
