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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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1 in stock
Matched tandem pair of super precision angular contact ball bearings, 85 x 150 x 28 mm, 25 degree contact angle, machined phenolic cage, ABEC 7.
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$341.77
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| MFR / Brand | RHP |
|---|---|
| MPN | 7217ETDTP4 |
| Model | 7217 E T DT P4 / B7217ETPAP4 |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 85 mm |
| OD | 150 mm |
| Width | 28 mm per bearing |
| Material | Carbon chrome bearing steel (SAE 52100) |
|---|---|
| Series | 72 (ISO dimension series 02) |
| Lubricant | Oil or grease; oil preservative as supplied |
| Base Number | 7217 |
| Industry Terms | Spindle bearing, machine tool bearing, tandem duplex set, precision angular contact pair |
| Common Misspellings | 7217 ETDT P4, 7217ETDTP-4, RHP 7217EDT |
| Application Types | Machine tool spindles, grinding spindles, high-thrust one-direction spindle mounts, precision gearboxes |
| Bore Shaft Size | 85 mm |
| Mpn Variants | 7217ETDTP4, 7217 E T DT P4, 7217-E-T-DT-P4, 7217-X3-TA-DT-EP7, B7217ETPAP4, 7217A5TRDTP4 |
| Precision Class | ABEC 7 / P4 |
| Cage Type | Machined, outer-ring guided |
| Dynamic Load Rating | 102,000 N |
| Static Load Rating | 86,500 N |
| Precision Rating | ABEC 7 / P4 |
| Rolling Elements | Balls |
| Item Weight | 1.78 kg (3.93 lb) per bearing |
| Cage Material | Laminated phenolic |
| Number Of Rows | 1 per bearing |
| Bore Type | Straight |
| Limiting Speed | 8,100 rpm grease; 12,500 rpm oil-air |
| Harmonization Code | 8482.10.50.28 |
| Contact Angle | 25° |
| Part Number | 7217ETDTP4 |
| Cross Reference 1 | NSK 7217A5TRDTP4 (25°, DT tandem pair) |
|---|---|
| Cross Reference 2 | SKF 7217 ACD/P4A (25°, single bearing; pair adds DT) |
| Cross Reference 3 | FAG B7217-E-T-P4S (25°, single bearing; pair adds DT) |
| Cross Reference 4 | RHP 7217CTRDTP4 (15° contact angle, not 25°) |
| Cross Reference 5 | Timken Fafnir 2MM217WI CR DT (15° contact angle, not 25°) |
RHP 7217ETDTP4 is a super precision single-row angular contact ball bearing set supplied as a matched tandem (DT) pair. Unit Quantity: 2 Pcs, one matched tandem pair. Bore Diameter: 85 mm. Outside Diameter: 150 mm. Width: 28 mm per bearing. Series: 72, ISO dimension series 02. Bore Type: Straight. Closure Type: Open.
7217 — 72 series, ISO dimension series 02, 85 mm bore.
E — legacy RHP 25° contact angle, equal to the current A5.
T — machined laminated phenolic cage, outer-ring guided.
DT — paired tandem unit, two bearings matched with contact angles facing the same way.
P4 — ISO Class 4, equal to EP7 and ABEC 7.
Bore Diameter: 85 mm. Outside Diameter: 150 mm. Width: 28 mm per bearing. Total Width: 56 mm (tandem pair). Contact Angle: 25°. Dynamic Load Rating: 102,000 N per bearing. Static Load Rating: 86,500 N per bearing. Limiting Speed: 8,100 rpm grease; 12,500 rpm oil-air for a single bearing. Limiting Speed, spring-loaded tandem pair: 11,875 rpm oil-air. Precision Class: ABEC 7 / P4. Cage Material: Laminated phenolic. Cage Type: Machined, outer-ring guided. Item Weight: 1.78 kg (3.93 lb) per bearing.
Arrangement: DT, matched tandem pair. Shaft abutment diameter d1: 95 mm minimum. Housing abutment diameter D1: 140 mm maximum. Housing abutment diameter D2: 144 mm maximum. Maximum shaft fillet radius: 2.5 mm. Maximum housing fillet radius: 1.0 mm. Effective load centre a: 109.8 mm. Internal volume for grease charging: 78.5 cm³ per bearing.
Cross-references: NSK 7217A5TRDTP4 (25°, DT tandem pair); SKF 7217 ACD/P4A (25°, single bearing); FAG B7217-E-T-P4S (25°, single bearing). Related size on the 85 x 150 x 28 mm envelope at 15° contact angle: RHP 7217CTRDTP4 and Timken Fafnir 2MM217WI CR DT. The same bearing carries the designations 7217-X3-TA-DT-EP7 and B7217ETPAP4.
Bore Diameter: 85 mm. Outside Diameter: 150 mm. Width: 28 mm per bearing.
Contact Angle: 25° (E). Precision Class: P4, equal to EP7 and ABEC 7.
Dynamic Load Rating: 102,000 N. Static Load Rating: 86,500 N.
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