M8 Jam Nut 256446

Part Number: 256446

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Questions & Answers

Repair Instructions

*This part replaces obsolete part #: 214017.

Product Information

Warning: California's Proposition 65

Compatibility

This part is compatible with the following machines:

NordicTrack

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283190 (SL720) Bike
283191 (SL720) Bike
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300760 (C2SI) Bike
NTC69020 (SL720)
NTC69021 (SL720) Bike
NTC69022 (SL720) Bike
NTC69023 (SL720)
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NTCCEX023090 (C2SI) Bike
NTCCEX023091 (GX2) Bike
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NTCCEX038100 (GX4.0) Bike
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NTEVEX749110 (GX4.1) Bike
NTEVEX750110 (GXR4.1) Bike
NTEVEX759090 (C5ZL) (Gw) Bike
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NTEVEX780090 (C7ZL) Bike
NTEVEX780091 (C7 ZL) Bike
NTEX023090 (C2SI) Bike
NTEX023091 (C2SI) Bike
NTEX023092 (GX2) Bike
NTEX029100 (GX2.0) Bike
NTEX029101 (GX2.0) Bike
NTEX038100 (GX4.0) Bike
NTEX038101 (GX4.0) Bike
NTEX048080 (C2SI) Bike
NTEX048081 (C2SI) Bike
NTEX049110 (GX5.0) Pro Bike
NTEX060101 (GX5.0) Sport Bike
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NTEX148070 (400) Coimmercial Bike
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NTEX148072 (400) Commercial Bike
216620 (U300) Audiorider Bike
NTEX41960 (R400) Audiorider Exercise Bike
NTSY19080 E8100 Competition System
158670 E8100 Competition Series System
NTEL199110 A.C.T. Commercial Plus Elliptical

ProForm

Expand the 150+ compatible machines

Products Compatibility

This item works with the following types of products:

• Elliptical
• Exercise Bike
• Treadmill

Questions & Answers for M8 Jam Nut

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Repair Instructions: Submitted by Customers Like You

1 of 1 people found this instruction helpful

Tool Type:

Elliptical

Parts Used:

Flywheel Axle - 284116

M8 Jam Nut - 256446

Flywheel Bearing - 172638

Repair Difficulty:

Medium

Time Spent Repairing:

30-60 minutes

Tools Used:

Screwdriver, Socket set, Adjustable Wrench

The two small fly wheel bearings on one side were completely busted

I couldn't remove the race of the two bearings on one side. I took the flywheel to a machine shop and had them remove the two small race and the one bearing on the other side. The parts list for the elliptical didn't identify the two small bearings on one side that were busted. The tech at the machine shop measured the race of the two small bearings and gave me the part number so that I could order them. Once this was done it was easy installing the new bearings and completing the assembly.
Dis-assembly of the machine to get to the flywheel was not difficult.

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Product Information