GUANGZHOU GUOMAT AIR SPRING CO. , LTD
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Firestone Air Bag Kit W01-R58-4075 Industrial Air Spring 14 1/2 X 2 DUNLOP SP 257
GUOMAT NO. 2B4075 Cross OEM:
Rubber bellows:14 1/2 X 2
Firestone:W01-R58-4075
Firestone:W01 R58 4075
Firestone:W01R584075
Weight:2.9 KG
DUNLOP SP 257
DUNLOP SP257
GUOMAT NO. 2B4075 Data:
❶Nut/ Blind Nut
Top cover screw (nut) teeth: 4x M10
Top cover screw center distance: 283 mm
Bottom cover screw (nut) teeth: 4x M10
Bottom cover screw center distance: 283 mm
❷ air hole / air inlet / air connector
Air vent / air inlet: 1/2 BS
❸ cover
Top cover diameter (width): 311MM
Bottom cover diameter (width): 311MM
❹Rubber bellows
Rubber bellows Natural diameter: 368 mm
Working stroke: 70 MM- 280 MM
Maximum height: 280 MM
Minimum height (compression height): 70mm
Stroke height: 210 MM
❺ bumper block / buffer block
No Bumper Block
Twisted waist/waist ring
Belt hoop: a band loop
| GUOMAT NO. | Model | Nominal Ø (inch) x convolutions | Maximum stroke (mm) | Air Port size |
| 1B 2 3/4x 1 | M/31021 | 2 3/4“ x 1 | 20 | G1/4 |
| 2B 2 3/4x 2 | M/31022 | 2 3/4“ x 2 | 45 | G1/4 |
| 3B 2 3/4x 3 | M/31023 | 2 3/4“ x 3 | 65 | G1/4 |
| 1B 4 1/2x 1 | M/31041 | 4 1/2“ x 1 | 140 | G3/8 |
| 2B 4 1/2x 2 | M/31042 | 4 1/2“ x 2 | 280 | G3/8 |
| 1B 6x 1 | M/31061 | 6" x 1 | 155 | G1/2 |
| 2B 6x 2 | M/31062 | 6" x 2 | 155 | G1/2 |
| 1B 8x 1 | PM/31081 | 8" x 1 | 95 | G3/4 |
| 2B 8x 2 | M/31082 | 8" x 2 | 185 | G3/4 |
| 1B 9 1/4x 1 | M/31091 | 9 1/4” x 1 | 105 | G3/4 |
| 2B 9 1/4x 1 | M/31092 | 9 1/4“ x 1 | 230 | G3/4 |
| 1B 12x 1 | M/31121 | 12" x 1 | 105 | G3/4 |
| 2B 12x 2 | M/31122 | 12" x 2 | 215 | G3/4 |
| 3B 12x 3 | M/31123 | 12" x 3 | 315 | G3/4 |
