5-7126 universal joint for Mechanics 7C heavy-duty drivelines. Nominal identification dimensions are 49.2 mm wing bolt-hole centre distance and 148.4 mm lock-up span. Four HWD wing bearings, greaseable cross, mounting bolts and split lock washers are shown. Cross references include G5-7126X, 5-7105X, Precision 927, CP72N-31, HS575, U7105 and Caterpillar 6H2577.
5-7126 Universal Joint 49.2×148.4 mm | G5-7126X 7C 4HWD Wing Bearing
Description
5-7126 universal joint is a greaseable four-wing heavy-duty cross kit for Mechanics 7C driveline systems. Its principal identification dimensions are approximately 49.2 mm between the mounting-hole centres on each wing and 148.4 mm across the opposed wing-bearing lock-up. These values should be checked together with the wing profile and bolt-hole size.
The photographed 5-7126 universal joint includes an assembled cross, four HWD wing bearings, a service grease fitting, mounting bolts and split lock washers. Each wing has two mounting holes for attachment to a matching yoke. Hardware specification and final kit contents should be confirmed on the quotation before placing a production order.
Product Features
MR Driveline supplies the 5-7126 universal joint for heavy-equipment driveshaft repair where a conventional round-cup joint is not suitable. The forged cross body, machined wing faces and greaseable design support scheduled maintenance in demanding off-highway service.
- Mechanics 7C wing-bearing configuration.
- 49.2 mm nominal wing bolt-hole centre distance.
- 148.4 mm nominal lock-up span.
- Four heavy-duty wing bearings, commonly identified as 4HWD.
- One grease fitting in the cross for service lubrication.
Technical Identification
The 5-7126 universal joint is also searched as G5-7126, G5-7126X and 57126. Common catalogue interchanges include 5-7105X, Precision 927, Rockwell CP72N-31, GKN HS575, Alloy 1840 and U7105. Equipment references associated with this dimensional family include Caterpillar 6H2577, 807719, 8K6042 and 9P0356. Interchange numbers help identify candidates but do not replace physical measurement.
| Primary reference | 5-7126 / G5-7126X |
|---|---|
| Series | Mechanics 7C |
| Wing bolt centres | 49.2 mm nominal |
| Lock-up span | 148.4 mm nominal |
| Bearing style | Four heavy-duty wings, 4HWD |
| Lubrication | Greaseable cross |
Applications and Fitment
The 5-7126 universal joint dimensional family is used in selected construction, earthmoving and industrial driveline applications. References such as 6H2577 and HS575 are useful when reviewing equipment records or an old parts list. Final compatibility must be confirmed from the machine serial number, driveshaft assembly and the removed joint.
Do not select a 5-7126 universal joint from the 148.4 mm span alone. Other 7C joints can share the same overall family while using light-wing, heavy-wing or mixed bearing arrangements. Differences in pilot shape, wing thickness, bolt-hole diameter and hole-centre distance can prevent correct seating or clamping.
How to Verify Before Ordering
Before ordering a 5-7126 universal joint, compress the bearing assemblies and measure the full lock-up with a calibrated caliper. Measure the centre distance and diameter of the two holes on one wing, then compare wing width, pilot details, grease-fitting position and yoke contact surfaces. Clear photos of the old joint and its mating yokes reduce identification errors.
During installation, clean the mounting faces and inspect the yoke holes for wear, cracks or elongation. Position the 5-7126 universal joint squarely, use the specified fastener grade and tightening torque, and tighten the paired bolts evenly. Confirm smooth articulation, correct running clearance and fresh grease according to the driveshaft or equipment manufacturer’s service instructions.
Ordering Information
For a 5-7126 universal joint quotation, send the required quantity, equipment model and serial number, original part reference, measured dimensions and clear photos. MR Driveline can compare the sample or drawing with available interchange data and discuss packing, production, inspection and export delivery requirements before confirmation.
Frequently Asked Questions
Is G5-7126X the same search reference?
It is a commonly used search reference for the 5-7126 universal joint family. Always confirm the 49.2 mm wing bolt-centre dimension, 148.4 mm lock-up and 4HWD bearing style.
Are the bolts included?
The product image shows mounting bolts and split lock washers. Confirm the required hardware quantity, thread and grade on the quotation.
Contact MR Driveline for dimensional confirmation, cross-reference support and an export quotation.
Additional information
| Brand | MR Driveline |
|---|---|
| Wing Bolt-Hole Centre Distance | 49.2 mm nominal |
| Lock-Up Span | 148.4 mm nominal |
| Configuration | Mechanics 7C, four heavy-duty wings (4HWD), greaseable |
| Cross References | G5-7126, G5-7126X, 57126, 5-7105X, 927, CP72N-31, HS575, 1840, U7105, 6H2577 |
