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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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2 in stock
Angular contact ball bearing pair, 35 mm bore, 55 mm OD, 10 mm wide, 30° contact angle, ABEC 5 / P5. Back-to-back DB matched set with Light preload.
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| MFR / Brand | NTN |
|---|---|
| MPN | 7907DBGLP5 |
| Model | 7907 DB GL P5 / 3MM9307WI CR SUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 35 mm |
| OD | 55 mm |
| Width | 10 mm |
| Material | High Carbon Chrome Steel |
|---|---|
| Series | 7900 |
| Lubricant | Grease or oil |
| Preload | Light |
| Base Number | 7907 |
| Total Width | 20 mm (DB pair) |
| Mpn Variants | 7907DBGLP5, 7907DB/GLP5, 7907 DB GL P5, 7907DB-GLP5, 3MM9307WI CR SUL (carton marking) |
| Precision Class | ABEC 5 / P5 |
| Additional Attributes | Fillet radius r min 0.6 mm; r1 min 0.3 mm; effective load centre 18 mm; da min 39.5 mm; Da max 50.5 mm |
| Rolling Elements | Ball |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 30° |
| Mounting Arrangement | Back-to-back (DB) |
| Industry Terms | angular contact ball bearing pair; duplex angular contact bearing; back-to-back matched pair; 79 series spindle bearing; 35 mm bore angular contact bearing |
| Common Misspellings | 7907 DBGLP5, 7907DBGL P5, NTN7907DBGLP5, 7907DBLP5, 7907DGLP5 |
| Application Types | Spindle bearing arrangements; duplex bearing positions |
| Closure Type | Open |
| Cross Reference 1 | NSK 7907A (30°, DB, P5, light preload) |
|---|---|
| Cross Reference 2 | Koyo 7907 (30°, DB, P5, light preload) |
| Cross Reference 3 | Nachi 7907 (30°, DB, P5, light preload) |
NTN 7907DBGLP5 is a matched pair of single-row angular contact ball bearings in the ISO 7907 size (79 series), ground for back-to-back (DB) mounting with Light preload. Unit Quantity: 2 Pcs, one DB matched pair. Carton marking: 3MM9307WI CR SUL.
7907 — NTN single-row angular contact ball bearing, 79 (ultra-light) series, 35 mm bore. No angle letter: 30° contact angle.
DB — back-to-back matched pair. Two single-row bearings ground as a set. Not a double-row bearing.
GL — Light preload.
P5 — ISO tolerance class 5, equivalent to ABEC 5.
Bore Diameter: 35 mm. Outside Diameter: 55 mm. Overall Width: 10 mm per bearing. Total Width: 20 mm as a DB pair. Contact Angle: 30°. Preload: Light. Precision Class: ABEC 5 / P5. Mounting Arrangement: Back-to-back (DB). Closure Type: Open. Rolling Elements: Ball. Number Of Rows: 1. Series: 7900.
Fillet Radius r min: 0.6 mm. Fillet Radius r1 min: 0.3 mm. Effective Load Centre a: 18 mm per bearing. Shaft Abutment da min: 39.5 mm. Housing Abutment Da max: 50.5 mm.
NSK 7907A, Koyo 7907 and Nachi 7907 in DB, P5 execution with light preload (30°). The Fafnir 3MM9307WI carton marking is a 25° design.
30°. The NTN 7907 designation with no angle letter is a 30° angular contact bearing.
DB is a back-to-back matched pair of two single-row bearings; GL is Light preload.
35 mm bore, 55 mm outside diameter, 10 mm width per bearing and 20 mm total width as a DB pair.
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