PartsTable
Technical Data Sheet
3770A ✓ Verified by PartsTable
· BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,PLAIN,SPHERICAL is a the manufacturer industrial component. Key specifications include overall_height: 5.500 INCHES NOMINAL IN, special_features: TORQUE 2500 IN LBS MIN AT 2000 PSI 4,500 AT 3000 PSI IN, compressed_length: 14.000 INCHES NOMINAL IN, integral_valve_operation_method: HYDRAULIC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-352-4719, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
3770A
NSN: 3120-00-352-4719
FSC: 3120
CAGE: 80906 — BLAW-KNOX CONSTRUCTION EQUIPMENT CO DIV OF WHITE CONSOLIDATED INDUSTRIES INC (USA)
SPECIFICATIONS
overall_height5.500 INCHES NOMINAL IN
special_featuresTORQUE 2500 IN LBS MIN AT 2000 PSI 4,500 AT 3000 PSI IN
compressed_length14.000 INCHES NOMINAL IN
integral_valve_operation_methodHYDRAULIC
NSN3120-00-352-4719
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 3770A · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
HOLE DIAMETER: 0.1880 INCHES NOMINAL FIRST IN
MATERIAL: COPPER ALLOY 606 OR COPPER ALLOY 614 OR COPPER ALLOY 630 OR COPPER ALLOY 642 OVERALL
ANTIROTATION/LUBRICATION TYPE AND QUANTITY: 2 HOLE
STYLE DESIGNATOR: SOLID
LUBRICANT ACCOMMODATION STYLE: PERFORATED
SPHERICAL BODY DIAMETER: 2.1130 INCHES MINIMUM AND 2.1180 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.1880 INCHES NOMINAL FIRST IN
MATERIALCOPPER ALLOY 606 OR COPPER ALLOY 614 OR COPPER ALLOY 630 OR COPPER ALLOY 642 OVERALL
ANTIROTATION/LUBRICATION TYPE AND QUANTITY2 HOLE
STYLE DESIGNATORSOLID
OVERALL LENGTH1.4900 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN
LUBRICANT ACCOMMODATION STYLEPERFORATED
SPHERICAL BODY DIAMETER2.1130 INCHES MINIMUM AND 2.1180 INCHES MAXIMUM IN
MATERIALOIL LUBRICATING LUBRICATION
BODY INSIDE DIAMETER1.2540 INCHES MINIMUM AND 1.2560 INCHES MAXIMUM IN
CORNER SHAPESQUARE ALL CORNERS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
3770AInterchangeable
interchangeable cross-reference
interchangeable
3770-41490Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3770A?
3770A is a BEARING,PLAIN,SPHERICAL.
What parts can replace 3770A?
There are 2 known substitutes for 3770A: 3770A, 3770-41490. Substitute compatibility should be verified for your specific system.
What is the NSN for 3770A?
3770A is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-352-4719. This indicates validated use in U.S. government and defense supply chains.
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