Motor Starters vs. Contactors vs. Overload Relays: What Each One Does and Why You Need All Three
When a motor stops running, the first instinct is to find the part that looks
Availability:
2 in stock
Super precision angular contact ball bearing, 45 mm bore x 75 mm OD x 16 mm wide, 25 degree contact angle, ABEC 7 (P4) tolerance, single universally ground with light preload, polyamide cage. One bearing, mountable in any duplex arrangement. For machine tool spindles, grinding heads and high speed ball screw ends.
List Price
$108.72
2 in stock
2 in stock
On the Shelf & Ready to Ship
On all orders
No Risk, No Hassle
Also Available From:
| MFR / Brand | NSK |
|---|---|
| MPN | 7009A5TYSULP4 |
| Model | 7009 A5 TY SUL P4 / 3MM9109 WI CR SUL / B7009E |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 45 mm |
| OD | 75 mm |
| Width | 16 mm |
| Material | High Carbon Chrome Steel |
|---|---|
| Series | 7000 |
| Condition | New |
| Lubricant | Oil |
| Preload | Light Preload |
| Base Number | 7009 |
| Industry Terms | spindle bearing; machine tool bearing; universally ground single; precision angular contact; SUL |
| Application Types | Machine tool spindles; grinding heads; high speed ball screw support; precision rotary axes |
| Bore Shaft Size | 45 mm |
| Mpn Variants | 7009A5TYSULP4; 7009 A5 TY SUL P4; 7009-A5-TY-SUL-P4; 7009A5TYSUL; 7009A5; 7009E; 7009ETSULP4 |
| Manufacturer Status | RHP super precision production transferred to NSK |
| Arrangement Configuration | Single universally ground (SU) - pairs into back-to-back, face-to-face or tandem |
| Precision Class | P4 (ABEC 7) |
| Additional Attributes | Load ratings and limiting speed not published for this suffix combination and deliberately left blank. Polyamide cage limits continuous temperature to approximately 120 degrees C. Country of origin not claimed - no verified carton or ring marking. |
| Min Temp | -40°C |
| Cage Type | Machined |
| Dynamic Load Rating | 29 kN / 6519 lbf |
| Static Load Rating | 24 kN / 5395 lbf |
| Precision Rating | ABEC 7 / P4 |
| Rolling Elements | Ball |
| Max Temp | 120°C |
| Item Weight | 0.52 lbs |
| Cage Material | Polyamide |
| Limiting Speed | 18000 rpm |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 25 degrees |
| Mounting Arrangement | Universal |
| Design Units | Metric |
| Part Number | 7009A5TYSULP4 |
| Cross Reference 1 | 7009E-T-P4 (RHP form, E = 25 degree) |
|---|---|
| Cross Reference 2 | B7009E-T-P4S (FAG same envelope, 25 degree) |
| Cross Reference 3 | 7009ACD/P4A (SKF same envelope, AC = 25 degree) |
A single super precision angular contact ball bearing in the ISO 70 light series, 45 mm bore, 75 mm outside diameter, 16 mm width. It is universally ground, so it can be combined with any other bearing of the same designation in a back-to-back, face-to-face or tandem arrangement and the preload will set itself.
7009 — ISO 70 series angular contact ball bearing, 45 x 75 x 16 mm.
A5 — NSK contact angle code for 25°. This matters: NSK A is 30° and NSK C is 15°, so 7009A, 7009A5 and 7009C are three different bearings in one envelope.
TY — NSK polyamide cage code.
SU — Single, Universally ground.
L — light preload.
P4 — ABEC 7 tolerance class.
The title also carries 7009E, which is the RHP form of the same bearing. That cross reference is internally consistent rather than contradictory: RHP’s E code is 25° and NSK’s A5 code is 25°, and NSK absorbed RHP’s super precision range, so the two numbers describe the same 25° bearing in the same envelope. Both forms are retained so the part is findable either way.
25° is the middle of the super precision range and the usual compromise position: noticeably more thrust capacity and axial stiffness than a 15° bearing, noticeably more speed capability than a 30°. Light preload is the low heat option — it gives up some stiffness in exchange for a cooler spindle and a longer grease life, which is the right call on anything running continuously. Because this is an SU single rather than a DU duplex, you are buying the flexibility to decide the arrangement at assembly time.
SU and DU are mutually exclusive designations, and this one is SU: a single bearing. Two are required to make a preloaded pair. A universally ground single will not deliver preload on its own — mounted alone it behaves as an ordinary angular contact bearing carrying thrust in one direction only.
Observe the ring markings when pairing two singles; universally ground rings have a deliberate offset and reversing one ring inverts the preload scheme. Do not pair an A5 bearing with an A or a C bearing. Keep the polyamide cage below roughly 120 °C continuous.
Dynamic and static load ratings and the limiting speed are not published by NSK for this exact suffix combination in a source we could verify, so they are left blank. Figures published for a 7009 in a different contact angle, cage or class are not this bearing’s figures.
Obsolescence trail: RHP super precision to NSK. Same envelope 25° alternatives are found as 7009E-T-P4 (RHP), B7009E-T-P4S (FAG) and 7009ACD/P4A (SKF, where SKF’s AC code is 25°). Always state which brand’s angle scheme you are reading before substituting — the same looking letter means different angles across manufacturers.
$53.53
48 in stock
$137.64
92 in stock
$231.30
29 in stock
A shipping cutoff banner measures a vendor’s dock. It tells
When a motor stops running, the first instinct is to find the part that looks
From Caligula’s luxury fleet to modern factories, this is the story of how a single
When sourcing a replacement bearing, you will often find both Timken and SKF options for
Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
Sort
Brand
Price
MPN
Categories
