Part Number LM67048-20629

BEARING CONE, CL 2 CODE 629, FAA-PMA

P/N: LM67048-20629

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Approval FAA PMA
Condition New
Manufacturer The Timken Company
Unit of Measure Each
Retail Price $51.04
Your Price $40.83 Free Shipping on Orders over $500
Stock Status In Stock

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Eligible Aircraft

Make Series Model Beginning S/N Ending S/N Eligibility Chart
Aero Commander (Rockwell/Gulfstream) 500 500 500-618 500-852 6693
Aero Commander (Rockwell/Gulfstream) 500 500-A 500-A-875 500-A-1276 6693
Aero Commander (Rockwell/Gulfstream) 520 520 520-1 520-150 6693
Aero Commander (Rockwell/Gulfstream) 560 560 520-151 520-230 6693
Aero Commander (Rockwell/Gulfstream) 560 560-A 560-A-437 560-A-884 6693
Air Tractor AT-300 AT-300 0 ZZZZZZZZZZZZZZZ 6693
Air Tractor AT-300 AT-301 0 ZZZZZZZZZZZZZZZ 6693
Air Tractor AT-300 AT-302 0 ZZZZZZZZZZZZZZZ 6693
Air Tractor AT-400 AT-400 0 ZZZZZZZZZZZZZZZ 6693
Air Tractor AT-400 AT-400A 0 ZZZZZZZZZZZZZZZ 6693
Air Tractor AT-400 AT-401 0 ZZZZZZZZZZZZZZZ 6693
Air Tractor AT-400 AT-401A 0 ZZZZZZZZZZZZZZZ 6693
Air Tractor AT-402 AT-402 0 ZZZZZZZZZZZZZZZ 6693
Air Tractor AT-500 AT-501 0 ZZZZZZZZZZZZZZZ 6693
Air Tractor AT-500 AT-503 0 ZZZZZZZZZZZZZZZ 6693
Air Tractor AT-500 AT-503A 0 ZZZZZZZZZZZZZZZ 6693
Air Tractor AT-502 AT-502 0 ZZZZZZZZZZZZZZZ 6693
Cessna 190 190 7004 16183 6693
Cessna 195 195 (LC-126A,B,C) 7004 16183 6693
Cessna 310 310 35000 35546 6693
Cessna 320 320 320-0001 320-0110 6693
Cessna 411 411 411-0001 411-0250 6693
Cessna 411 411A 411-0251 411-0300 6693
Cessna 414 414 414-0001 414-0965 6693
Cessna 421 421B 421B0001 421B0970 6693
Grumman G-164 G-164 0 ZZZZZZZZZZZZZZZ 6693
Grumman G-164 G-164B 0 ZZZZZZZZZZZZZZZ 6693
Grumman G-164 G-164C 0 ZZZZZZZZZZZZZZZ 6693
Grumman G-164 G-164D 0 ZZZZZZZZZZZZZZZ 6693

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Product Details

Wheel Bearing Cups and Cones 

FAA-PMA approved Timken wheel bearings for Goodyear, Cleveland, and McCauley wheels

  • Class 2 aviation grade FAA-PMA bearings (Timken designates these with a -20629 suffix)
  • Tighter tolerance and higher quality control than Class 4 automotive bearings
  • Save $$

Don't be tempted to buy cheapy automotive bearings

Because Timken uses the same part number for both the automotive and aviation versions of these bearings, many people mistakenly use the lower quality automotive bearings in their airplane. It is critical that the FAA-PMA Class 2 version be used for aircraft applications for two reasons:

  • They are a higher class of bearing with tighter tolerance and have been subjected to more stringent quality control procedures. Due to the smaller diameter of aircraft wheels, at a given ground speed the bearings rotate at a much higher RPM and require the tighter tolerances to prevent premature failure.

    Example: At a 70 mph touchdown speed (equivalent to highway speed of a car), a typical 17 inch diameter airplane tire is rotating at 1384 RPM, whereas a typical 27 inch car tire is only rotating at 871 RPM. So even though the aircraft bearing is only subject to intermittent use, some of the performance demands are much higher than a typical automotive application. 
  • It is a violation of FAA regulations to use non-approved automotive bearings on certified aircraft.

Wheel to Seal Kit and Bearing Cross Reference

Bearing Cup and Cone Dimensions

APS BlackSteel brake discs and linings, brake bleed valves, and wheel grease seals also available.

WARNING: Cancer and/or Reproductive Harm - www.P65warnings.ca.gov

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