2500-3700 lbs. Rubber Torsion Axle
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Applications: |
Boat Trailers Horse Trailers Travel Trailers Utility Trailers |

| STYLE | SPINDLE TYPE - UHI | FLANGE AVAILABLE |
HUB FACE | OVERHANG | ||
| MIN. | MAX. | MIN. | MAX. | |||
| 2500 | 1.378" inner bearing journal 1 1/16" outer bearing journal 1.688" seal with SSR |
YES | 40" | 94" | 6.875" | 12" |
| 1.378" inner bearing journal 1 1/16" outer bearing journal 1.719" seal |
YES | 40" | 94" | 6.875" | 12" | |
| 3000 | 1.378" inner bearing journal 1 1/16" outer bearing journal 1.688" seal with SSR |
YES | 42" | 94" | 6.875" | 12" |
| 1.378" inner bearing journal 1 1/16" outer bearing journal 1.719" seal |
YES | 42" | 94" | 6.875" | 12" | |
| 3500 | 1.378" inner bearing journal 1 1/16" outer bearing journal 1.688" seal with SSR |
YES | 46" | 94" | 6.875" | 12" |
| 1.378" inner bearing journal 1 1/16" outer bearing journal 1.719" seal |
YES | 46" | 94" | 6.875" | 12" | |
| 3700 | 1.378" inner bearing journal 1 1/16" outer bearing journal 1.688" seal with SSR |
YES | 46" | 94" | 6.875" | 12" |
| 1.378" inner bearing journal 1 1/16" outer bearing journal 1.719" seal |
YES | 46" | 94" | 6.875" | 12" | |
| AXLE | Series 10 rubber torsion |
| SPINDLES | Type UHI with 1.378" inner and 1 1/16" outer bearing
journals with a 1.688" seal dia. (with stainless steel ring
on seal dia.) Type UHI with 1.378" inner and 1 1/16" outer bearing journals with a 1.719" seal dia. |
| BRACKETS | Standard and low profile |
| HUBS, DRUMS, AND ROTORS | Idlers and brake drums available in 5 on 4½", 5 on 5", 5 on 5½", and 6 on 5½" bolt patterns, rotor available in 5 on 4½" |
| BRAKES | 10" x 2¼" electric or 10" x 2¼" hydraulic drum, or hydraulic disc |
| LUBRICATION | Lithium-based high quality wheel bearing grease The Sure Lube system is available and recommended |



| Standard starting angles are shown. Special angles may be available upon request. 4½" of clearance is recommended above tire to avoid interference. Standard axle brackets were used for determining heights. Low profile and high-rise brackets are available upon request. | ![]() |

| DETAIL | PART NO. | DESCRIPTION |
| 1 | RT-3700-XP | Rubber Torsion Axle - 2500-3700 lbs. |
| 1A | DW-813 | Spindle Washer - 13/16" - "D" Flat |
| 1B | SN-813 | Spindle Nut - 13/16"-20 |
| 1C | LS-813 | Spindle Nut Lock Shield |
| 1D | SCP-103 | Cotter Pin - 5/32" x 1½" |
| 2 | SL-168 | Grease Seal - 1.688" I.D. |
| SL-173 | Grease Seal - 1.719" I.D. | |
| 3 | L68149 | Bearing Cone - 1.378" I.D. |
| 4 | 1-1000-04-00 | Idler Hub - 5 on 4½" (6½" Dia. Flange) |
| 1-1050-04-00 | Idler Hub - 5 on 4½" (5 9/16" Dia. Flange) | |
| 1-1000-14-00 | Idler Hub - 5 on 5" (6½" Dia. Flange) | |
| 1-1000-24-00 | Idler Hub - 5 on 5½" (6½" Dia. Flange) - Sure Lube Not Available | |
| 1-1000-34-00 | Idler Hub - 6 on 5½" (7" Dia. Flange) - Sure Lube Not Available | |
| 4A | L68111 | Bearing Cup |
| 4B | L44610 | Bearing Cup |
| 4C | ST-504 | Pressed-in Stud - ½"-20 (1000 Series) |
| ST-502-04 | Pressed-in Stud - ½"-20 (1050 Series) | |
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5-1000-04-00 | Brake Drum - 5 on 4½" |
| 5-1000-14-00 | Brake Drum - 5 on 5" | |
| 5-1005-04-00 | Brake Drum - 5 on 5½" | |
| 9-1001-04-00 | Disc Brake Rotor - 5 on 4½" | |
| 5A | L68111 | Bearing Cup |
| 5B | L44610 | Bearing Cup |
| 5C | ST-502-04 | Pressed-in Stud - ½"-20 |
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EBLH-1000 EBRH-1000 |
Electric Brake - 10" x 2¼" |
| HBLH-1000 HBRH-1000 |
Hydraulic Brake - 10" x 2¼" | |
| HBLH-1001 HBRH-1001 |
Free-Backing Hydraulic Brake - 10" x 2¼" | |
| DBCL-1001 DBCR-1001 |
Disc Brake Caliper Assembly | |
| 7 | STN-506 | Stud Nut - ½"-20 x 60° |
| 8 | L44649 | Bearing Cone - 1 1/16" I.D. |
| 9 | 1505 | Dust Cap |
| 9A | GC-1980-01 | Sure Lube Grease Cap |
| 10 | FLN-437 | Flange Lock Nut - 7/16"-20 |
| 11 | FB-437 | Flange Bolt - 7/16"-20 x 1" Hex (Hydraulic Brakes Only) |