7336BDT Series

Matched Angular Contact Ball Bearings

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Axial Internal Clearance

Tolerance

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Product Information

Display units Metric Imperial

Designations

7336BDT

Boundary Dimensions

d	180	mm	Bore diameter
D	380	mm	Outside diameter
2B	150	mm	Width 2B
r (min.)	4	mm	Chamfer dimension
r1 (min.)	1.5	mm	Chamfer dimension

Basic Load Ratings

C_r	665000	N	Basic dynamic load rating
C_0r	975000	N	Basic static load rating

Speeds

Grease	1100	min^-1	Grease lubrication
Oil (Oil-bath)	1500	min^-1	Oil-bath lubrication

Abutment and Fillet Dimensions

da (min.)	198	mm	Diameter of shaft abutment
Da (max.)	362	mm	Diameter of housing abutment
ra (max.)	3	mm	Radius of shaft or housing fillet

Mass

(approx.)

85.2

CAD

FAQs (3)

Customer Questions

How can I distinguish angular contact ball bearings (ACBBs) from deep groove ball bearings (DGBBs)?

The thickness of the outer ring is different for the marked and unmarked sides of angular contact ball bearings. This is due to the contact angle between the outer ring and balls. Conversely, the thickness of the outer ring in deep groove ball bearings is equal on both sides.
Additionally, ACBBs have 7xxx designations, while DGBBs have 6xxx designations.

What are the differences when using an angular contact ball bearing arrangement, a double-row angular contact ball bearing, or two individual single-row angular contact ball bearings?

Double-row ACBBs can take axial loads in both directions, but they have limited contact angle options.
ACBB arrangements or multiple single-row ACBBs can only take axial load in one direction based on how they are combined. However, multiple-bearing options have no limits for contact angle, allowing for a custom selection to best match the ratio of radial load to axial load.
Additionally, the clearance and precision of ACBB arrangements is controlled as a set, creating a stable level of vibration/noise and rotational accuracy. However, using two single-row ACBBs that are controlled individually can cause significant variation in their resulting properties when combined.

What makes angular contact ball bearings unique?

As their name implies, the balls and outer ring in an ACBB make contact diagonally at the specifed contact angle. The contact angle affects the inclined contact made between the balls and outer ring, thereby affecting limiting speed and load capacity. The larger the contact angle, the higher the bearing's axial load capacity.

More Information

More Information
NSK Product Type2	ACBB_SR_MM
NSK Product Type	Bearing
Designations	7336BDT