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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NSK super-precision angular contact ball bearing, 110 x 170 x 28 mm, 15° contact angle, phenolic cage, P4 precision class, universally ground.
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Here are some other options that might fit your project — cross-referenced equivalents and similar parts we have in stock and ready to ship. Need help choosing? Call 585-295-7880.
Angular Contact Ball Bearing — Super Precision, 110 mm ID, 150 mm OD, 20 mm Width, 15° Contact Angle, P2H, Universal Light Preload$419.35
Angular Contact Ball Bearing – 110 mm Bore, 170 mm OD, 28 mm Width, 15° Contact Angle, Open$152.02
Angular Contact Ball Bearing — Super-Precision P4A, 110 mm ID, 170 mm OD, 28 mm Width, 15° Contact Angle, Universally Matchable, Light Preload$1,200.23
Super-Precision Angular Contact Ball Bearings - 110 mm ID, 170 mm OD, 28 mm Width, Open, 15° Contact Angle, Extra Light Preload, P4A, Set of 2$1,200.23| MFR / Brand | NSK |
|---|---|
| MPN | 7022CTYDULP4 |
| Model | 7022 C TY DUL P4 / 2MM9122WI CR DUL |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 110 mm |
| OD | 170 mm |
| Width | 28 mm |
| Material | Bearing Steel |
|---|---|
| Series | 7000 |
| Lubricant | Oil/Grease |
| Preload | Light |
| Base Number | 7022 |
| Industry Terms | spindle bearing; super precision angular contact; phenolic cage bearing; universally ground; light preload; ABEC 7; high speed spindle bearing |
| Application Types | High-speed machine-tool spindles; grinding spindles; high-speed milling heads |
| Bore Shaft Size | 110 mm |
| Mpn Variants | 7022CTYSULP4; 7022C TY SUL P4; 7022-C-TY-SUL-P4; 7022CTYSULP4Y; 7022CTRSULP4; 7022C; 7022 |
| Manufacturer Status | NSK 7022C remains an active super-precision designation |
| Arrangement Configuration | SU — single, universally ground. Mountable DB, DF or DT with another bearing of the same designation. Note: the source data also carried a conflicting DUL (duplex) form; see description. |
| Precision Class | P4 (ISO class 4 / ABEC 7) |
| Additional Attributes | IMPORTANT: the source data described this bearing as both SU (single universally ground) and DU (duplex) — mutually exclusive. We have published the conservative SU reading and can confirm from the ring etching before you order. Universally ground faces must never be shimmed, lapped or reground; the preload is built into them. 15° plus light preload is the high-speed, low-heat combination, trading away axial stiffness. Two other 7022-envelope bearings in different brands and classes are in our stock. |
| Min Temp | -30 °C |
| Cage Type | Molded |
| Dynamic Load Rating | 111 kN / 24953 lbf |
| Static Load Rating | 104 kN / 23380 lbf |
| Precision Rating | ABEC 7 / P4 |
| Rolling Elements | Balls |
| Max Temp | 120 °C |
| Item Weight | 4.34 lbs |
| Cage Material | Phenolic (NSK TY designation) — self-lubricating and tolerant of momentary oil starvation, but sets the maximum operating temperature |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | Without Snap Ring |
| Harmonization Code | 8482.10.50.68 |
| Contact Angle | 15° (NSK scheme: C = 15°, A5 = 25°, A = 30°) |
| Mounting Arrangement | Universal |
| Design Units | Metric |
| Part Number | 7022CTYSULP4 |
| Limiting Speed | 10000 rpm |
| Cross Reference 1 | 7022 (ISO base number) |
|---|---|
| Cross Reference 2 | 7022C (15° base designation) |
| Cross Reference 3 | 7022-C-TY-DUL-P4 — appeared in the original source data, but DU contradicts the SU in the primary part number. Retained as a search term only, not as a specification. |
| Cross Reference 4 | 7022CTRSULP4 — NSK variant with a different cage designation; verify cage before substituting |
An NSK super-precision angular contact ball bearing in the 7022 envelope, open type, universally ground so it can be stacked with matching bearings at a defined light preload.
Brand: NSK
Manufacturer Part Number: 7022CTYSULP4
Type: Super-precision angular contact ball bearing
Bore: 110 mm
Outside Diameter: 170 mm
Width: 28 mm
Envelope: 110 x 170 x 28 mm
Contact Angle: 15°
Cage Material: Phenolic (synthetic resin)
Closure: Open
Precision Class: ISO P4, equivalent to ABEC 7
Grinding: Single, universally ground
Preload: Light
Set Composition: One single universally ground bearing
Country of Manufacture Designation on Record: Japan
Cross-Reference Search Term: 7022-C-TY-DUL-P4
7022 — ISO 70 dimension series, bore code 22, giving a 110 mm bore, in the 110 x 170 x 28 mm envelope.
C — in NSK’s scheme, a 15° contact angle. NSK reads A5 as 25° and A as 30°.
TY — NSK’s phenolic (synthetic resin) cage designation.
SU — single, universally ground.
L — light preload.
P4 — ISO precision class 4, equivalent to ABEC 7.
15° is the high-speed end of the spindle range. The shallower angle keeps the load path closer to the radial plane, which cuts ball centrifugal and gyroscopic effects and lets the bearing run faster and cooler than a 25° or 30° bearing in the same envelope. Axial stiffness and thrust capacity trade against that, so 15° suits grinding and high-speed milling.
Phenolic is self-lubricating, absorbs oil, and is gentler on the balls than pressed steel during momentary oil starvation, which is why it is standard on high-speed spindle bearings. It also sets the temperature ceiling for the bearing.
Universal grinding means the ring faces are ground so that any two bearings of the same designation produce the correct preload when clamped together, in any of the three arrangements. Light preload gives the least stiffness, the least heat and the highest speed capability of the preload grades.
ISO base number 7022. Contact-angle letters differ by maker: NSK C = 15°, A5 = 25°, A = 30°; Timken C = 15°, E = 25°; SKF AC = 25°. Establish the scheme before treating a number as equivalent.
Related Sizes in the Same Envelope: Fafnir 3MM9122 at 25° and FAG B7022E — same 7022 envelope, different brands, classes and contact angles.
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Our team can locate, cross-reference, and source all parts.
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