59mm Simplicity Dust Cap

$12.50 inc GST

SKU: AXDCAP59 Category:


59mm Simplicity Dust Cap

59mm Simplicity dust cap is a replacement dust or grease cap.

The simplicity dust cap fits all simplicity bearing kits.


  • OD : 59mm
  • Total Height: 35mm
  • Height Lip Insert: 7mm

Some hubs do not have machined chamfers in the boss and rear of the hub.

59mm dust cap insertion can be difficult. Using a pipe of the correct diameter can greatly improve the ease of which the dust cap can be installed.

Dust cap can become lose if hammered into position too frequently even on the first insert.

Once the dust cap is home, stop hitting it. An extra hit can actually make it loose-fitting.

Question: Should I fill my grease cap full of grease.

Answer: No, the purpose of the grease cap is to catch excess grease when the bearing cavity is pressurised. Pressurisation occurs during rotation at high speed.

Ideally, the grease cap should be inserted dry, however, grease is generally in oversupply during the greasing process.

Grease will exit the bearing cavity at high speeds and during the initial heating and cooling process. Note: Grease never re-enters the bearing cavity one caught in the grease cap.

What is the purpose of the grease cap?

  • To catch grease?
  • Or to prevent the ingress of dust?

Read why do dust caps and bearing buddy’s fall off? 

Couplemate Trailer Parts sells only the best quality 59mm Simplicity Dust Cap and caravan spare parts throughout Australia.

Customers are welcome to either pickup or take advantage of our low freight rates. Express shipping to Melbourne, Sydney, Brisbane, Perth, Adelaide, Darwin, and Hobart.

We also ship products to New Zealand via Australia Post Air Express.

© Steve Wotherspoon February 19, 2019. Images and text may be copied, provided a link back to the copied page and the source is displayed where the content or image is located.

Additional information

Weight 0.2 kg
Dimensions 7 × 7 × 3 cm


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