Urgent need for Mud-Pump Spares (TSC make, WF2000 Triplex pumps)

Discussion Forum > Drilling Equipment > Urgent need for Mud-Pump Spares (TSC make, WF2000 Triplex pumps)

Urgent need for Mud-Pump Spares (TSC make, WF2000 Triplex pumps)

18 October 2021

Dear SPREAD

Our jack-up rig contractor in the Caspian Sea has now 2 mud pumps down out of 3.

Details:

Mud Pump # 2 and #3 – damage to outer race (bearing retention ring)

• Found a broken metal pieces in the oil sump

• Observed broken sections on outer race

• Magnet catcher contains metal debris

It is suspected this is due to a defect of the bearings, please see attached.

Note : The general service life of the bearing is more than 20,000 hours. According to the feedback of on-site operation time, there is still a design life of 10,000 hours but due to the visible damage of the on-site bearing, it is recommended to be replaced.

The mud pumps are a TSC make, WF2000 triplex pump.

The rig contractor does not hold inventory for those bearings and the manufacturing delivery time is around 5 weeks.

Bearing details listed below:

Line item	Part No.	Description	Qty	Where used	Description where used	OEM info
1	BR1-380-194-0620	Main Bearing Xsrb (380 X 620 X 194)	6	CRANKSHAFT	XSRB (380x620x194)	H212: FAG 23176-MB-C3 H195: SKF 23176 CA/W33
2	BR2-170-200-0309	Crosshead Bearing	9	CRANKSHAFT	XCRB170x309x200	NKE CRB128434
3	BR2-240-092-0360	Bearing, Pinion	6	PINION SHAFT	XCRB 240x360x92	SKF NCF3048CV
4	BR2-762-121-0921	Eccentric Bearing Xcrb(762921121a)	9	CRANKSHAFT	XCRB(762x921x121A)	NKE CRB1286/762-B

Where we are struggling is that apparently two types of bearings listed below are custom made and apparently the manufacturer of these bearings (NKE) have agreement only to supply TSC and we require seven (7) each of these two bearing types

Part # BR2-170-200-0309 Crosshead bearing for Crankshaft with NKE part # NKE CRB128434
Part # BR2-762-121-0921 Eccentric bearing Xcrb (762*921*121a) with NKE part # NKE CRB1286/762-B

Support Needed:

Anyone out there holding stock of those bearings in their inventory &/or can propose other alternatives to source those bearings with faster delivery times?
Anyone observed the same/similar issues with the TSC mud pump bearings ?
From your experience, what are the possible reasons for the premature failures of those bearings ?

If you can help, email immediately to Dave@rp-squared.com (moderator) and he will connect us.

Many thanks

Fadi