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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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SKF 7022 CDGA/P4A super-precision angular contact ball bearing pair, 110 x 170 x 28 mm, 15° angle, P4A, extra light preload, Cr 111 kN, 2 Pcs.
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| MFR / Brand | SKF |
|---|---|
| MPN | 7022 CDGA/P4A |
| Model | 7022CD/P4A DGA |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 110 mm (4.3307 in) |
| OD | 170 mm (6.6929 in) |
| Width | 28 mm (1.1024 in) per bearing |
| Material | Chrome bearing steel |
|---|---|
| Series | ISO 70 series (7000) |
| Preload | Extra light |
| Base Number | 7022 |
| Industry Terms | super precision angular contact bearing, matched pair spindle bearing, machine tool bearing, P4A bearing, 15 degree angular contact, universally matchable set |
| Application Types | Machine tool spindles, grinding spindles, precision rotary tables |
| Bore Shaft Size | 110 mm (4.3307 in) |
| Mpn Variants | 7022 CDGA/P4A; 7022 CD/P4ADGA; 7022-CD/P4ADGA; 7022CDP4ADGA; 7022-CD-P4A-DGA; 7022CD/P4A DGA; 7022CDGAP4A; 7022CD; 2MM9122WI |
| Precision Class | P4A |
| Additional Attributes | Fatigue load limit Pu 3.9 kN; unmounted preload G0 420 N; axial stiffness 122 N/um; 20 balls, 19.05 mm diameter; effective load centre a 32.9 mm; da/db min 119 mm; Da max 161 mm; Db max 165 mm; ra max 2 mm; rb max 1 mm; oil-nozzle dn 132.6 mm; grease reference quantity 25.5 cm3 |
| Dynamic Load Rating | 111,000 N |
| Static Load Rating | 108,000 N |
| Precision Rating | P4A |
| Rolling Elements | Ball |
| Item Weight | 1.93 kg (4.25 lb) per bearing |
| Cage Material | Non-metallic |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Part Number | 7022-CD/P4ADGA |
| Closure Type | Open |
| Cross Reference 1 | Fafnir 2MM9122WI |
|---|---|
| Cross Reference 2 | GMN S6022CTA |
| Cross Reference 3 | NSK 7022CTYNSULP4 - polyamide cage |
SKF 7022 CDGA/P4A, carton marking 7022-CD/P4ADGA, is a super-precision angular contact ball bearing supplied as two universally matchable bearings with extra light preload. Bore Diameter: 110 mm. Outside Diameter: 170 mm. Width: 28 mm per bearing. Contact Angle: 15°. Unit Quantity: 2 Pcs. ISO 70 series, straight bore, open both faces.
70 — ISO 70 series, size 7022.
22 — bore code, 22 x 5 = 110 mm bore.
CD — 15° contact angle, high-capacity D design.
DGA — universally matchable bearings with extra light preload.
P4A — SKF precision class.
Bore Diameter: 110 mm. Outside Diameter: 170 mm. Width: 28 mm per bearing. Contact Angle: 15°. Dynamic Load Rating Cr: 111 kN per bearing. Static Load Rating C0r: 108 kN per bearing. Fatigue Load Limit Pu: 3.9 kN. Preload: Extra light, unmounted preload G0 420 N. Axial Stiffness: 122 N/µm. Rolling Elements: 20 balls, 19.05 mm diameter. Precision Class: P4A. Cage Material: Non-metallic. Closure Type: Open. Item Weight: 1.93 kg (4.25 lb) per bearing. Grease reference quantity: 25.5 cm³.
Shaft abutment diameter da and db: 119 mm minimum. Housing abutment diameter Da: 161 mm maximum, Db: 165 mm maximum. Housing fillet radius ra: 2 mm maximum, rb: 1 mm maximum. Oil-nozzle diameter dn: 132.6 mm. Effective load centre a: 32.9 mm.
Cross-references at 15°: Fafnir 2MM9122WI and GMN S6022CTA. Related size: NSK 7022CTYNSULP4, which has a polyamide cage. Also catalogued as 7022-CD/P4ADGA, 7022CD/P4A DGA and 7022CDGAP4A.
Bore Diameter: 110 mm. Outside Diameter: 170 mm. Width: 28 mm per bearing.
Dynamic Load Rating Cr: 111 kN. Static Load Rating C0r: 108 kN. Both are per bearing.
CD is a 15° contact angle in the high-capacity D design. DGA is a universally matchable bearing with extra light preload.
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