687.55 slip assembly for 2055-series heavy-duty propeller shafts using a nominal 57×152 mm universal joint and 120 mm sleeve section. Greaseable protected-spline construction; confirm spline geometry, working length and slip travel before ordering.
687.55 Slip Assembly 57×152 mm for 120 mm Sleeve | 2055 Series
Description
Product Overview
The 687.55 slip assembly is a heavy-duty sliding section for 2055-series propeller shafts using a nominal 57×152 mm universal joint. It combines a forged shaft yoke, a protected sliding spline and a greaseable sleeve arrangement so the driveshaft can compensate for axial movement while continuing to transmit torque.
This product is intended for driveshaft manufacture, repair and dimensional replacement. The 687.55 or 2055 series designation identifies the general joint family; spline details, working length and mating tube dimensions must still be checked against the old assembly, drawing or sample.
Key Identification Points
- 687.55 slip assembly / 2055 heavy-duty driveshaft series.
- Nominal universal-joint size: 57 mm bearing diameter x 152 mm span.
- 120 mm nominal outside diameter at the sleeve section.
- Protected sliding spline with grease lubrication provision.
- Forged yoke with machined bearing bores.
Technical Specifications
| Product type | Slip assembly / slip joint assembly |
|---|---|
| Series | 687.55 / 2055 |
| Nominal U-joint size | 57×152 mm |
| Sleeve outside diameter | 120 mm nominal |
| Spline protection | Enclosed sleeve and seal arrangement |
| Lubrication | Greaseable |
| Yoke construction | Forged steel with machined bearing seats |
| Production basis | Drawing, verified dimensions or approved sample |
Slip Function and Spline Protection
Axial travel in a propeller shaft must occur without interrupting torque transmission. The mating spline pair in this 687.55 slip assembly provides that movement, while the surrounding sleeve limits direct exposure to dirt and impact. Grease access supports scheduled lubrication of the sliding surfaces.
Spline outside diameter, tooth count, spline form, effective travel and closed working length are fit-critical. They should not be inferred from the 687.55 series name alone. MR Driveline can manufacture or verify the assembly from a controlled drawing or physical sample.
Series References and Identification
Search references can include 687.55, 68755, 2055 series and, in some catalogues, related 587.42 component descriptions. These references help locate the product family but do not by themselves prove interchangeability. Confirm the 57×152 mm joint interface, spline geometry, sleeve diameter, seal position and required working length before ordering.
687.55 Series Matching Components
| Component | Primary identifier |
|---|---|
| Slip assembly | 57×152 mm joint, 120 mm sleeve |
| Weld yoke | For 120×6 mm tube |
| Cross-serrated flange yoke | 180 mm, 4-bolt pattern |
| Universal joint | 57×152 mm |
Ordering and Verification
For quotation, provide the required quantity and a drawing or clear photographs of the original slip assembly. Include the bearing diameter and span, spline outside diameter and tooth count, closed length, effective slip travel, sleeve diameter and any seal or grease-fitting requirements. If the assembly is part of a complete new shaft, also provide the driveshaft working length and tube specification.
Frequently Asked Questions
Is every 687.55 slip assembly interchangeable?
No. The joint family can be the same while the spline, length, sleeve and seal arrangement differ. Final approval should be based on dimensions or a controlled reference.
Can the slip assembly be supplied for driveshaft production?
Yes. It can be evaluated as an individual replacement component or as part of a complete propeller-shaft build, subject to drawing and dimensional confirmation.
What information is most important for matching?
Confirm the 57×152 mm joint interface first, followed by spline size and tooth count, working length, slip travel, sleeve diameter and lubrication arrangement.
Contact MR Driveline for 687.55 slip assembly dimensional review, sample matching and export quotation.
Additional information
| Brand | MR Driveline |
|---|---|
| Series | 687.55 / 2055 |
| U-Joint Size | 57×152 mm |
| Sleeve Outside Diameter | 120 mm nominal |
| Lubrication | Greaseable protected spline |
