ACL Race Main Bearing Set (STD) Fits Nissan SR18DE/SR18Di/SR20Di/SR20DE/SR20DET/SR20VE5M2964H-STD
Description
ACL Race Series performance engine bearings are manufactured to exacting tolerances. Micron tolerance machining supported by precision measurement systems delivers consistent accuracy to key characteristics like wall thickness and crush. This ensures a reliable fit and helps maintain consistent clearances.
- High-strength overlay plate with reduced thickness for improved fatigue properties
- Hardened steel backs on all rod bearings to improve the support of the bearing lining and assist with bearing retention in the housing.
- Increased crush for improved bearing retention
- Elimination of flash plating on the back of the bearings to improve heat transfer through the bearings and to maximize the grip between the bearings and its housing.
- Increased eccentricity to compensate for bore distortion at high rpm and to assist in the formation of hydrodynamic oil films.
- 3/4 grooved Main Bearings to optimize bearing load carrying surface area and oil flow to the conrod bearings.
- Tight, consistent wall tolerances to help you maintain consistent clearances.
- Enlarged ID chamfers on bearing edges where required to accommodate large fillet radius on performance crankshafts.
| Sizes | STD, .025, .25, .50 |
| Oil Clearance | |
| Half Type | Upper & lower |
| Material | F780 |
| Min. Std Shaft Size | 54,956 mm / 2.1636 in |
| Max. Std Shaft Size | 54,98 mm / 2.1646 in |
| Min. Std Tunnel Size | 58,944 mm / 2.3206 in |
| Max. Std Tunnel Size | 58,968 mm / 2.3216 in |
| Max Wall at Crown | 1,975 mm / 0.0778 in |
| Max Overall Length |
19,1 mm / 0.7520 in
|
| Notes | |
| Diagrams |
2964H-L (1,2,3,4,5)
2964H-U (1,2,3,4,5)
|
Vehicle Compatibility:
- Nissan SR18DE
- Nissan SR18Di
- Nissan SR20DE
- Nissan SR20DET (Except GTi-R)
- Nissan SR20Di
- Nissan SR20VE
Specifications
SKU 5M2964H-STD
Availability 1-3 Days
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