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NTNAngular Contact Ball Bearing Triplex Set 75x125x24 mm, 15° Contact Angle, DBT Arrangement — Three Bearing Matched Set

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Angular contact ball bearing triplex set, 125 mm OD, 24 mm per bearing, 15° contact angle, DBT tandem-plus-opposed stack for asymmetric spindle thrust.

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$419.92

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Specifications

Key Specifications

MFR / BrandNTN
Model7214C DBT 17PX5V
Bearing TypeAngular Contact Ball Bearing, Open
ID70 mm
OD125 mm
Width24 mm

Technical Specifications

MaterialBearing Steel
Series7200
LubricantOil/Grease
Base Number7214
Industry Termsangular contact ball bearing; triplex set; DBT arrangement; matched set; three bearing set; 15 degree contact angle; spindle bearing; 7214
Application TypesDrilling and boring spindles; machine-tool spindles with strongly asymmetric thrust loading; high-speed shafts needing heavy one-way thrust capacity
Bore Shaft Size75 mm
Mpn Variants7214CDBT; 7214C DBT; 7214-C-DBT; 7214CDB; 7214C; 7214; 17PX5V; 1724C
Manufacturer StatusNTN 7214C remains an active designation
Arrangement ConfigurationDBT triplex (tandem pair plus one opposing bearing)
Rolling ElementsBalls
Number Of Rows1 row per bearing; 3 bearings in the set
Bore TypeStraight
Snap Ring IncludedNo
Harmonization Code8482.10.50.68
Contact Angle15°
Mounting ArrangementDBT triplex (tandem pair plus one opposing bearing)
Design UnitsMetric
Part Number7214CDBT

Cross-References

Cross Reference 1NTN 7214C DB (related two-bearing pair in the same envelope)
Seller Part Number: B-BE3#SG8JWW

Product Description

Product identification

NTN angular contact ball bearings in the 7214 envelope, matched and ground as a DBT triplex set.

Brand: NTN

Part Number: 7214CDBT

Bearing Type: Angular contact ball bearing

Base Number: 7214

Series: ISO 72 dimension series

Design Units: Metric

Principal dimensions

Outside Diameter: 125 mm

Overall Width: 24 mm per bearing

Bore Type: Straight

Running specification

Contact Angle: 15°

Arrangement / Configuration: DBT triplex

Mounting Arrangement: DBT triplex (tandem pair plus one opposing bearing)

Number Of Rows: 1 row per bearing; 3 bearings in the set

Seal Type: Open

Closure Type: Open

Rolling Elements: Balls

Material: Bearing steel

Lubricant: Oil or grease

Snap Ring Included: No

Performance in service

A 15° contact angle keeps the load path near the radial plane, cutting ball centrifugal and gyroscopic effects, so the set runs faster and cooler than a 25° or 40° equivalent. The triplex stack recovers thrust capacity: the tandem pair shares thrust in the heavily loaded direction, roughly doubling capacity that way, while the single opposing bearing takes the lighter reverse thrust and completes axial location of the shaft.

Application types

Drilling and boring spindles, machine-tool spindles with strongly asymmetric thrust loading, and high-speed shafts needing heavy one-way thrust capacity.

Set composition

Unit Quantity: 1 set of 3 Pcs — matched DBT triplex stack. Two bearings mounted in tandem facing one direction and a third facing the other, giving a back-to-back relationship overall.

Related designations

ISO base number 7214. Searchable forms: 7214CDBT, 7214C DBT, 7214-C-DBT, 7214CDB, 7214C, 7214, 17PX5V, 1724C.

Cross-Reference 1: NTN 7214C DB (related two-bearing pair in the same envelope)

Origin and classification

Country of Origin: Japan

Harmonization Code: 8482.10.50.68

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