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E-Style External Retaining Ring, Tapered Section, Radial Assembly, 1060-1090 Carbon Steel, Phosphate and Oil Finish, Meets DIN 6799, 4mm Shaft Diameter, 0.6mm Thick, Made in US (Pack of 100)

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Product Specifications
Compatible Groove Diameter
2.3  millimeters
Compatible Groove Width
0.64  millimeters
For Outside Diameter
4  millimeters
For Shaft Diameter
Indentation Hardness
65 rockwell_30N
Item Shape
E Style
Number of Items
Outside Diameter
4.6  millimeters
Outside Diameter
5.90  millimeters
0.60  millimeters
Thickness Tolerance
+0.02 mm/-0.02  millimeters
Specification for this product family (See all  products)
Material Type
Carbon Steel
Part Number
Body Style
Brand Name
Small Parts
Manufacturer Series Number
Exterior Finish
Phosphate and Oil
Specification Met
DIN 6799
Installation Method
SAE 1060-1090
Style Name
Tapered Section
Import Designation
Made in US
System of Measurement

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Key Features

  • E-style shape connects with the shaft in three places for retention
  • Tapered section construction provides flexibility to facilitate installation
  • Ring installs radially by sliding onto the shaft from the side
  • 1060-1090 carbon steel is often used in applications where strength is the primary consideration, and the phosphate and oil finish provides mild resistance to corrosion such as rust
  • Meets DIN 6799 specifications, and is made in USA

Package Details

Shipping Weight: 0.1 pounds
Package Size: 3 x 1.8 x 0.1 inches

Product Description

The E-style external retaining ring has a tapered section, assembles radially, is made of phosphate and oil finished 1060-1090 carbon steel, meets Deutsches Institut für Normung (DIN) 6799 specifications, and is made in USA. The ring's E-style shape has three points of contact with the shaft for retention when installed. The tapered section style provides the ring with flexibility to facilitate installation and typically withstands higher thrust loads than constant section and spiral rings. The ring installs by sliding it onto a shaft from the side, also called radial assembly. Often used when the shaft end is not reachable, radial assembly rings enable quicker installation than axially installed rings but may require deeper grooves. The 1060-1090 carbon steel is often used in applications where strength is the primary consideration, and the phosphate and oil finish, also known as P&O, provides mild resistance to corrosion such as rust.

Retaining rings attach to a shaft (external) or install in a bore (internal), creating a shoulder to maintain component positioning within an assembly. While most rings install into a machined groove either on the inside or outside diameter of a shaft, self-locking rings attach to a shaft by using friction from means such as teeth and notches to maintain placement. Retaining rings should fit tightly enough into the groove or onto the shaft so they won't experience any movement.

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