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Timken A4138 Steering Gear Worm Shaft Race
| Brand | Timken A4138 |
|---|---|
| Fits | Chrysler · 11 vehicles |
Tapered roller bearing. Handles both radial and axial loads in a compact design.
Higher-speed operation. Engineered for heavier loads and longer service life.
Cone and cup. Replace both together to maximize reliability and life.
Cross-references National A4138, 1111183 and 1115040 for the same application. See all 3.
Timken A4138 Steering Gear Worm Shaft Race
The Timken A4138 steering gear worm shaft race is a precision tapered roller bearing cup for steering gear service. It is built for compact fitment, stable load handling, and dependable operation in steering assemblies that need both radial and axial load support.
Key Features
- Outside diameter: 1.377 in. (34.99 mm)
- Width: 0.344 in. (8.73 mm)
- Bearing cup radius: 0.051 in. (1.30 mm)
- Engineered for tapered roller bearing applications in steering gear assemblies
- Timken bearing component for precise fit and consistent performance
Application Details
Timken A4138 is a steering gear worm shaft race used in tapered roller bearing setups where accurate cup dimensions matter for steering feel and durability. This part cross-references National A4138 for the same application. Compatible With 1949-1954 Chrysler Imperial, 1953-1954 Chrysler New Yorker, 1952 Chrysler Town & Country, and 1950-1951 Chrysler Newport. Chrysler Imperial and Chrysler New Yorker owners restoring steering gear components often search for Timken A4138 when replacing worn bearing races in these classic applications.
What It Helps Address
- Steering gear bearing wear
- Excessive play in the worm shaft area
- Noisy or rough steering gear operation
- Improper bearing cup seating from worn components
- Reduced steering precision in vintage Chrysler steering systems
Installation Notes and Tips
Inspect the mating cone and cup surfaces before installation. Timken recommends replacing both the inner cone and outer cup at the same time to maintain reliability and service life. Verify dimensions and steering gear application before assembly, especially on 1949-1954 Chrysler Imperial, 1953-1954 Chrysler New Yorker, 1952 Chrysler Town & Country, and 1950-1951 Chrysler Newport models.
Quality Assurance
Timken is recognized globally for tapered roller bearing engineering and support. The A4138 reflects that focus with compact, load-capable bearing geometry for steering gear service and long-term durability in demanding automotive applications.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1954 | Chrysler | Imperial | — | — | N/A | — |
| 1954 | Chrysler | New Yorker | 5.4L | V8 | N/A | — |
| 1953 | Chrysler | Imperial | — | — | N/A | — |
| 1953 | Chrysler | New Yorker | 5.4L | V8 | N/A | — |
| 1952 | Chrysler | Imperial | — | — | N/A | — |
| 1952 | Chrysler | Town & Country | 4.1L | L6 | N/A | — |
| 1951 | Chrysler | Imperial | — | — | N/A | — |
| 1951 | Chrysler | Newport | 4.1L | L6 | N/A | — |
| 1950 | Chrysler | Imperial | — | — | N/A | — |
| 1950 | Chrysler | Newport | 4.1L | L6 | N/A | — |
| 1949 | Chrysler | Imperial | — | — | N/A | — |
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