Sandvik / Tamrock
550 121 64a Bearing, Spherical, Roller
Rock Drill Spare Part
| Part Number | 550 121 64a |
| Description | Bearing, Spherical, Roller |
| Brand | Sandvik (Tamrock) |
| Assembly | Rock Drill |
| Type | Rock Drill Spare Part |
Quick answer
550 121 64a (also written 55012164a, 550-121-64a, or 550.121.64a) is a Sandvik bearing, spherical, roller spare part used in the Rock Drill assembly of the Sandvik DC122R. Verified compatible with 5 Sandvik machine models including COMMANDO DC125R, DC122R, DC125R. Used in 1 drifter configuration (HEX1). Available as an aftermarket replacement drill part from BK Drilling — Turkey-based Sandvik and Epiroc spare parts supplier serving mining contractors worldwide. Quote on request via WhatsApp; typical lead time 3-7 days for stock items.
Part code alternate forms: 55012164a, 550 121 64a, 550-121-64a.
Compatible machines
5
Drifter configurations
1
OEM cross-reference
550 121 64a
About Sandvik 550 121 64a Bearing, Spherical, Roller
Precision-manufactured for the Sandvik DC122R, this bearing component in the Rock Drill provides reliable rotational support even under the harsh vibration and impact conditions of rock drilling. Timely replacement prevents cascading damage to adjacent drivetrain components.
This is an OEM-compatible aftermarket replacement part for the Sandvik DC122R (DC122R). Also compatible with Tamrock branded equipment of the same model series. BK Drilling supplies this part with fast worldwide shipping and competitive pricing.
Frequently asked questions
Why are bearings critical in drilling equipment?
Bearings support rotating shafts and components under extreme loads and vibrations. Failed bearings can cause catastrophic damage to gearboxes, drive trains, and drilling mechanisms, leading to extended downtime and costly repairs.
What causes premature bearing failure in mining equipment?
Common causes include contamination from dust and water ingress, misalignment during installation, excessive loads, inadequate lubrication, and operating beyond rated temperature ranges. Proper sealing and regular lubrication schedules are essential preventive measures.
