BW-13167 Sprag Cage One Way Clutch bearing for Freewheel 54.765×71.427×15.9mm
BW-13167 Sprag Cage One Way Clutch bearing for Freewheel 54.765×71.427×15.9mm
The BW-13167 bearing (also known as DC5476) is a common sprag-type clutch bearing, used in automotive and industrial applications. It’s a needle roller bearing.
Inner Diameter (Bore): approx. 54.77 mm
Outer Diameter: approx. 71.43 mm
Width: approx. 15.90 mm
Design: Usually a sprag cage type (without inner or outer rings; it uses the shaft and housing as the raceways).
Application: Often found in automatic transmissions or as a starter clutch.
FAQ1: What are the functions of the one-way clutch bearing in a transmission?
In a car’s automatic transmission, these bearings (often called “one-way clutches”) are essential for:
Smooth Shifting: They allow one gear to “let go” naturally as another gear takes over, preventing a “jerking” feeling.
Engine Braking: They control when the wheels are allowed to spin faster than the engine.
Starter Motors: They allow the starter to spin the engine, but once the engine starts and runs faster than the starter, the clutch “freewheels,” so the engine doesn’t destroy the starter motor.
FAQ2: How to Select a One-Way Clutch Bearing?
When choosing a bearing for your drive system, consider these four factors:
Torque Capacity: How much twisting force will the clutch need to hold
Overrunning Speed: How fast will it spin while it is “freewheeling”(Higher speeds may require oil lubrication instead of grease).
Engagement Frequency: Will it lock and unlock 10 times a minute or 1,000 times? Sprag types are better for high-frequency “indexing.”
Mounting Style: Do you need a “bolt-on” unit with its own rings, or a “cage only” unit (like the BW-13167) that fits onto a custom shaft?
