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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.
Availability:
2 in stock
Super-precision angular contact ball bearing, 50x72x12 mm, 25 degree contact angle, phenolic cage, ABEC 7 / P4, light-preload universal duplex pair.
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$255.24
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| MFR / Brand | NSK |
|---|---|
| MPN | 7910A5TDULP4 |
| Model | 7910A5 T DUL P4 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 50 mm |
| OD | 72 mm |
| Width | 12 mm |
| Material | Bearing Steel |
|---|---|
| Series | 71900 / 7900 super-precision |
| Lubricant | Grease or oil; recommended grease quantity 0.84 g per bearing |
| Preload | Light (L) |
| Base Number | 7910 |
| Industry Terms | Super precision bearing; spindle bearing; matched pair; phenolic cage bearing; angular contact ball bearing; ABEC 7 |
| Common Misspellings | 7910A5TDULP-4; 7910 A5T DULP4; 7901A5TDULP4; 7910A5TDLUP4 |
| Application Types | Machine tool spindles; grinding spindles; high-speed rotary tables; precision motion control |
| Overall Width | 12 mm |
| Mpn Variants | 7910A5TDULP4; 7910A5 T DUL P4; 7910-A5-T-DUL-P4; 71910A5TDULP4; 7910A5TDUL |
| Precision Class | ABEC 7 / P4 |
| Additional Attributes | Effective load center a: 20.2 mm; permissible axial load Pa: 11.0 kN; da min 55 mm; Da max 67 mm; Db max 69.5 mm; ra max 0.6 mm; r min 0.6 mm; r1 min 0.3 mm |
| Cage Type | Outer-ring guided |
| Dynamic Load Rating | 20,100 N |
| Static Load Rating | 14,200 N |
| Rolling Elements | Ball |
| Item Weight | 0.132 kg (0.29 lb) |
| Cage Material | Phenolic |
| Number Of Rows | 1 per bearing |
| Bore Type | Cylindrical |
| Snap Ring Included | No |
| Limiting Speed | 16,400 rpm grease; 24,600 rpm oil |
| Harmonization Code | 8482.10 |
| Contact Angle | 25° |
| Mounting Arrangement | DUL — universally matched duplex pair, light preload |
| Bearing Material | Bearing steel |
| Closure Type | Open |
| Cross Reference 1 | FAG B71910-E-T-P4S-DUL – 25°, phenolic cage, DUL pair |
|---|---|
| Cross Reference 2 | SKF 71910 ACD/P4ADGA – 25°, P4A, universal light pair |
| Cross Reference 3 | Koyo 7910C DU P4 – 15° vs 25° |
NSK 7910A5TDULP4 super-precision angular contact ball bearing, universally matched duplex set (DUL, light preload). Unit Quantity: 2 Pcs. Bore 50 mm, outside diameter 72 mm, width 12 mm, 25° contact angle, phenolic cage.
7910 — super-precision angular contact ball bearing, 19 dimension series, 50 mm bore.
A5 — 25° contact angle.
T — phenolic cage, outer-ring guided.
DUL — universally matched duplex set, light preload.
P4 — ISO class 4 precision, ABEC 7 equivalent.
Bore Diameter: 50 mm.
Outside Diameter: 72 mm.
Overall Width: 12 mm.
Dynamic Load Rating: 20,100 N.
Static Load Rating: 14,200 N.
Contact Angle: 25°.
Limiting Speed: 16,400 rpm grease; 24,600 rpm oil.
Precision Class: ABEC 7 / P4.
Preload: Light.
Cage Material: Phenolic, outer-ring guided.
Item Weight: 0.132 kg (0.29 lb).
Rolling Elements: Ball. Closure Type: Open. Bore Type: Cylindrical. Lubricant: grease or oil.
Load ratings and mass are NSK single-bearing figures.
Shaft abutment diameter da min: 55 mm. Housing abutment diameter Da max: 67 mm. Housing abutment diameter Db max: 69.5 mm. Fillet radius ra max: 0.6 mm. Chamfer r min: 0.6 mm. Chamfer r1 min: 0.3 mm. Effective load center a: 20.2 mm. Permissible axial load Pa: 11.0 kN. Recommended grease quantity: 0.84 g per bearing. Mounting Arrangement: DUL universal duplex, light preload.
Cross-references: FAG B71910-E-T-P4S-DUL (25°, phenolic cage, DUL pair); SKF 71910 ACD/P4ADGA (25°, P4A, universal light pair); Koyo 7910C DU P4 (15° versus 25°).
Bore 50 mm, outside diameter 72 mm, width 12 mm.
25°, from the A5 code in the designation.
Universally matched duplex set with light preload.
$152.21
35 in stock
$152.21
35 in stock
The international standard behind most of the bearings in your
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
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Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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