
Eaton Airflex WCB Water-Cooled Auxiliary Brake
Identify parts for Eaton Airflex WCB water-cooled drawworks brakes using the full nameplate model and drawing number. The references below cover standard 24WCB2 and 36WCB2 configurations; send the model, required part and quantity for a quotation.
- Category
- WCB Eaton Auxiliary Brake
- Inquiry details
- Model · Part No. · Quantity
Selection & Quotation
Send the brake nameplate, complete model suffix, assembly number and a photo or drawing. Specify whether you need a component or an assembly. WCB2, WCBD and other brake versions need their own configuration check.
Part Numbers by Brake Model
Standard-configuration references; confirm the installed assembly before ordering.
| Part number | Component | Brake model reference |
|---|---|---|
508459 | Wear plate | 124WCB2 / 224WCB2 / 324WCB2 / 424WCB2 |
416527 | Wear plate | 136WCB2 / 236WCB2 / 336WCB2 / 436WCB2 |
508725 | Friction disc | 124WCB2 / 224WCB2 / 324WCB2 / 424WCB2 |
513658 | Friction disc | 136WCB2 / 236WCB2 / 336WCB2 / 436WCB2 |
510745 | Friction disc core | 124WCB2 / 224WCB2 / 324WCB2 / 424WCB2 |
513667 | Friction disc core | 136WCB2 / 236WCB2 / 336WCB2 / 436WCB2 |
513964-01 | Friction disc subassembly | 124WCB2 / 224WCB2 / 324WCB2 / 424WCB2 |
513990 | Friction disc subassembly | 136WCB2 / 236WCB2 / 336WCB2 / 436WCB2 |
000402*0023000402X0023 | Inner lip seal | 124WCB2 / 224WCB2 / 324WCB2 / 424WCB2 |
000402*0024000402X0024 | Outer lip seal | 124WCB2 / 224WCB2 / 324WCB2 / 424WCB2 |
000402*0005000402X0005 | Inner lip seal | 136WCB2 / 236WCB2 / 336WCB2 / 436WCB2 |
000402*0006000402X0006 | Outer lip seal | 136WCB2 / 236WCB2 / 336WCB2 / 436WCB2 |
416751-02 | Release spring | 124WCB2 / 224WCB2 / 324WCB2 / 424WCB2 |
416751-01 | Release spring | 136WCB2 / 236WCB2 / 336WCB2 / 436WCB2 |
513264 | Cylinder | 124WCB2 / 224WCB2 / 324WCB2 / 424WCB2 |
513988 | Cylinder | 136WCB2 / 236WCB2 / 336WCB2 / 436WCB2 |
Number reference: Airflex WCB11070, §§6.1–6.2. Download component list (CSV)
Assembly Drawing

Specifications
Full Assembly Reference
This table is updated from the product parameters you provided. It covers 124WCB2, 224WCB2, 324WCB2, 424WCB2, 136WCB2, 236WCB2, 336WCB2 and 436WCB2.
124WCB2 / 224WCB2 / 324WCB2 / 424WCB2
| No. | Part Name | 124WCB2 146465A(514825) Part No. | 224WCB2 146466A(514826) Part No. | 324WCB2 146467A(514827) Part No. | 424WCB2 146468A(514828) Part No. |
|---|---|---|---|---|---|
| 1 | Mounting Flange Half Assembly | 513348-01 | 513348-01 | 513348-01 | 513348-01 |
| 2 | Mounting Flange | 513337 | 513337 | 513337 | 513337 |
| 3 | Wear Plate | 508459 | 508459 | 508459 | 508459 |
| 4 | Pin | 000245*0069 | 000245*0069 | 000245*0069 | 000245*0069 |
| 5 | Friction Disc | 508725 | 508725 | 508725 | 508725 |
| 6 | Friction Disc Core | 510745 | 510745 | 510745 | 510745 |
| 7 | Pipe Clamp | 306542-05 | 306542-20 | 306542-23 | 306542-24 |
| 8 | Pressure Plate Half Assembly | 513348-03 | 513348-03 | 513348-03 | 513348-03 |
| 9 | Pressure Plate | 513345 | 513345 | 513345 | 513345 |
| 10 | Flat Washer | 000153*0641 | 000153*0641 | 000153*0641 | 000153*0641 |
| 11 | Lock Nut | 000110*0073 | 000110*0073 | 000110*0073 | 000110*0073 |
| 12 | Cylinder | 513264 | 513264 | 513264 | 513264 |
| 13 | Edge Seal (Inner) | 000402*0023 | 000402*0023 | 000402*0023 | 000402*0023 |
| 14 | Edge Seal (Outer) | 000402*0024 | 000402*0024 | 000402*0024 | 000402*0024 |
| 15 | — | 411672 | 410970 | 412433 | 413195 |
| 16 | Wear Washer | N/A | 308396 | 308396 | 308396 |
| 17 | Reaction Plate Half Assembly | N/A | 513348-02 | 513348-02 | 513348-02 |
| 18 | Reaction Plate | N/A | 513343 | 513343 | 513343 |
| 19 | Piston | 513317 | 513317 | 513317 | 513317 |
| 20 | Return Spring | 416751-02 | 416751-02 | 416751-02 | 416751-02 |
| 21 | Inner Support Ring | 413107 | 413107 | 413107 | 413107 |
| 22 | Outer Support Ring | 413108 | 413108 | 413108 | 413108 |
| 23 | Countersunk Screw | 000294*407 | 000294*407 | 000294*407 | 000294*407 |
| 24 | Pipe Plug | 000077*0021 | 000077*0021 | 000077*0021 | 000077*0021 |
136WCB2 / 236WCB2 / 336WCB2 / 436WCB2
| No. | Part Name | 136WCB2 Part No. | 236WCB2 Part No. | 336WCB2 Part No. | 436WCB2 Part No. |
|---|---|---|---|---|---|
| 1 | Mounting Flange Half Assembly | 513985-01 | 513985-01 | 513985-01 | 513985-01 |
| 2 | Mounting Flange | 513986 | 513986 | 513986 | 513986 |
| 3 | Wear Plate | 416527 | 416527 | 416527 | 416527 |
| 4 | Pin | 307111-04 | 307111-10 | 307111-05 | 307111-07 |
| 5 | Half Friction Disc Assembly | 513990 | 513990 | 513990 | 513990 |
| 6 | Friction Disc | 513658 | 513658 | 513658 | 513658 |
| 7 | Friction Disc Core | 513667 | 513667 | 513667 | 513667 |
| 8 | Pipe Clamp | 308204-07 | 308204-02 | 308204-04 | 308204-05 |
| 9 | Pressure Plate Half Assembly | 513985-03 | 513985-03 | 513985-03 | 513985-03 |
| 10 | Pressure Plate | 512860 | 512860 | 512860 | 512860 |
| 11 | Flat Washer | 000067*0042 | 000067*0042 | 000067*0042 | 000067*0042 |
| 12 | Lock Nut | 000110*0075 | 000110*0075 | 000110*0075 | 000110*0075 |
| 13 | Cylinder | 513988 | 513988 | 513988 | 513988 |
| 14 | Edge Seal (Inner) | 000402*0005 | 000402*0005 | 000402*0005 | 000402*0005 |
| 15 | Edge Seal (Outer) | 000402*0006 | 000402*0006 | 000402*0006 | 000402*0006 |
| 16 | — | 416538 | 416538 | 416538 | 416538 |
| 17 | Wear Washer | N/A | 308397 | 308397 | 308397 |
| 18 | Reaction Plate Half Assembly | N/A | 513985-02 | 513985-02 | 513985-02 |
| 19 | Reaction Plate | N/A | 513989 | 513989 | 513989 |
| 20 | Piston | 512858 | 512858 | 512858 | 512858 |
| 21 | Return Spring | 416751-01 | 416751-01 | 416751-01 | 416751-01 |
| 22 | Inner Support Ring | 414032-01 | 414032-01 | 414032-01 | 414032-01 |
| 23 | Outer Support Ring | 414033-01 | 414033-01 | 414033-01 | 414033-01 |
| 24 | Countersunk Screw | 000294*407 | 000294*407 | 000294*407 | 000294*407 |
| 25 | Pipe Plug | 000077*0021 | 000077*0021 | 000077*0021 | 000077*0021 |