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Timing Belt Pulleys and V-Belt Sheaves: Matching Belt Drive Components Correctly
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
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31 in stock
NDH Q20203DTL7A angular contact ball bearing, 17 x 40 x 12 mm, 15° contact angle, ABEC 7 / P4. Two-piece duplex tandem set, light preload, phenolic cage.
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| MFR / Brand | NDH |
|---|---|
| MPN | Q20203DTL7A |
| Model | B7203 C T P4 DUL / 7203 CD P4A DGA / 2MM203WI DUL / Q20203 DT L7A |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 17 mm |
| OD | 40 mm |
| Width | 12 mm |
| Material | High Carbon Chrome Steel |
|---|---|
| Series | 7200 |
| Preload | Light |
| Rolling Elements | Ball |
| Cage Material | Phenolic |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50.28 |
| Contact Angle | 15° |
| Mounting Arrangement | Tandem (DT) |
| Base Number | 20203 |
| Industry Terms | super precision angular contact bearing, spindle bearing, duplex tandem bearing set |
| Mpn Variants | Q20203DTL7A, Q-20203-DT-L7A, Q20203 DT L7A |
| Precision Class | ABEC 7 / P4 |
| Common Misspellings | NDH Q20203DTL7; NHD Q20203DTL7A; Q 20203 DT L7A; NDH 20203DTL7A |
| Application Types | Machine tool spindles; high-speed precision shafts |
| Cross Reference 1 | SKF 7203 CD/P4A DGA |
|---|---|
| Cross Reference 2 | FAG B7203-C-T-P4-DUL |
| Cross Reference 3 | Fafnir 2MM203WI DUL |
| Cross Reference 4 | NSK 7203CTYNDULP4 - polyamide cage |
NDH Q20203DTL7A is a super-precision angular contact ball bearing, supplied as a two-piece duplex tandem set. Bore Diameter: 17 mm. Outside Diameter: 40 mm. Width: 12 mm per bearing. Contact Angle: 15°. Unit Quantity: 2 Pcs.
Q — NDH phenolic separator (cage).
20203 — NDH’s number for the ISO 7203 size, 17 x 40 x 12 mm. The 20-series prefix is the 15° angular contact family.
DT — duplex tandem. Two single-row bearings ground as a matched set, mounted facing the same direction. Not a double-row bearing.
L — light preload.
7 — NDH tolerance grade, equivalent to ABEC 7 / ISO P4.
Bore Diameter: 17 mm. Outside Diameter: 40 mm. Overall Width: 12 mm per bearing. Contact Angle: 15°. Precision Class: ABEC 7 / P4. Cage Material: Phenolic. Preload: Light. Mounting Arrangement: Tandem (DT). Rolling Elements: Ball. Closure Type: Open. Bore Type: Straight. Number Of Rows: 1 per bearing. Series: 7200. Unit Quantity: 2 Pcs.
Envelope: 17 x 40 x 12 mm. Mounting Arrangement: Tandem (DT), two bearings forming one factory-matched set facing the same direction; the tandem arrangement shares axial load in one direction across both bearings.
Carton cross designations with the same 17 x 40 x 12 mm envelope, 15° angle and P4 class: SKF 7203 CD/P4A DGA, FAG B7203-C-T-P4-DUL, Fafnir 2MM203WI DUL, and NSK 7203CTYNDULP4 (polyamide cage instead of phenolic).
The contact angle is 15° and the precision class is ABEC 7 / ISO P4, with light preload.
Q is the NDH phenolic separator, 20203 is the ISO 7203 size at 17 x 40 x 12 mm, DT is duplex tandem, L is light preload and 7 is the ABEC 7 tolerance grade.
The set is two bearings (Unit Quantity: 2 Pcs) forming one factory-matched duplex tandem pair facing the same direction.
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