50mm Square Stub Axle

$43.19$83.41 inc GST

Engineered for Quality



50mm Square Stub Axle suit Slimline, Parallel, Dexter, 2t, 3t

50mm square stub axle is used on trailers up to 1450kg in Slimline configuration and to 2.25t in most significant profile or 4.5t in tandem.

Australian MadeAxle rating is for 725kg Standard Bearings, 1450kg Ford Slimline Bearings, 1600kg Parallel Bearings, 2t Al-ko or Dexter Bearing, 3t Al-ko bearings.

Seal Shoulder

The seal shoulder is an essential factor when selecting stub axles.

  • Electric stub axles have a seal that should set back 128mm for standard slimline bearings and 140mm for parallel bearings.
  • Marine stub axles have a rear shoulder of 115mm to accommodate a marine seal.
  • Parallel Marine is 125mm to the rear shoulder.
  • 2t Electric is 180mm to the weld ring shoulder.
  • 2t Marine is 141mm to the back shoulder.

Please measure the back shoulder before ordering.

Ford or SL Bearing

  • Inner ID 35.00mm, OD 59.10mm
  • Outer ID 22.00mm, OD 45.20mm
  • Seal ID 43.9mm, OD 59.10mm
  • Grease Cap 45.20mm

Parallel Bearing Kit

  • Inner ID 35.00mm, OD 59.10mm
  • Outer ID 35.00mm, OD 59.10mm
  • Seal ID 43.9mm, OD 59.10mm
  • Grease Cap 63.00mm

1.8t Dexter Bearing Kit

  • Inner ID 35.00mm, OD 59.97mm – 68149/11
  • Outer ID 27.00mm, OD 50.29mm – 44649/10
  • Seal ID 44mm, OD 65.22mm – GS-1719DL
  • Grease Cap 1.98″

2t Bearing Kit for Al-ko Drums

  • Inner ID 50mm, OD 89.96mm – HR30210
  • Outer ID 31.75mm, OD 61.95mm – 15123/15245
  • Seal ID 60.3mm, OD 89.96mm – 64607
  • Grease Cap OD 63.5mm – CM498

2t Dexter Bearing Kit

  • Inner ID 44.45mm, OD 82.93mm – 25580/20
  • Outer ID 31.75mm, OD 59.10mm – 15123/245
  • Seal ID 1.937″ OD 3.375″ – 33940
  • Grease Cap DC2441

We recommend you use only Japanese Bearings.

If you wish for a more substantial capacity on your 45mm round stub axle, it is possible to use a parallel profile.

Reduce axle flex with a shorter length axle or larger diameter axle.

The links below contained a variety of stub axles we manufacture.

Couplemate Trailer Parts sells only the best quality 50mm Square Stub Axle 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 26, 2017. 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 5 kg
Dimensions 30 × 5 × 5 cm
Stub Length

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Axle Profile

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Seal Shoulder



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