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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Precision spindle deep groove ball bearing, 25 x 52 x 15 mm, straight bore, open, machined phenolic cage, P4S precision, 24,000 rpm limiting speed.
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$72.52
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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 – 25 mm ID x 52 mm OD x 15 mm, 40° Contact Angle, Maximum Capacity, Pressed Brass Cage$42.31
Super-Precision Angular Contact Ball Bearing - 25 mm ID, 52 mm OD, 15 mm Width, 15° Contact Angle, Medium Preload, ABEC 7/9$67.21
Super Precision Angular Contact Ball Bearing, Duplex Set, 25 mm ID, 52 mm OD, 15 mm Width, 15 Degree Contact Angle, Light Preload, Phenolic Cage, ABEC 7$145.11
Double Row Angular Contact Ball Bearing - 25 mm ID, 52 mm OD, 20.6 mm Width, Shielded, 30° contact angle, C3.$27.51| MFR / Brand | Fafnir |
|---|---|
| MPN | MM205K |
| Model | MM 205K |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 25 mm |
| OD | 52 mm |
| Width | 15 mm |
| Series | 200 |
|---|---|
| Material | Bearing Steel |
| Base Number | MM205K |
| Industry Terms | Spindle deep groove ball bearing, precision spindle bearing, Fafnir 200K series |
| Bore Shaft Size | 25 mm |
| Mpn Variants | MM 205 K, MM-205-K, MM 205K, MM205 |
| Rolling Elements | Balls |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Harmonization Code | 8482.10.50 |
| Part Number | MM205K |
Fafnir MM205K precision spindle deep groove ball bearing, built by The Timken Company. Bore: 25 mm. Outside Diameter: 52 mm. Overall Width: 15 mm. Bore Type: Straight. Number Of Rows: 1. Rolling Elements: Balls. Closure Type: Open. Cage Material: Phenolic. Cage Type: Machined. Precision Class: P4S, ABEC 7/9. Series: 200K spindle series. Bearing Material: Bearing steel. Dynamic Load Rating: 14.8 kN / 3330 lbf. Static Load Rating: 7.8 kN / 1750 lbf. Limiting Speed: 24,000 rpm. Item Weight: 0.28 lbs. Unit Quantity: 1 Pc.
MM: Fafnir’s super precision spindle prefix, carrying Precision Class P4S. 205: 25 mm bore in the 200 series. K: the spindle deep groove execution within the 200K family. The 200K, 300K and 9100K families are spindle deep groove ball bearings, and the 25 x 52 x 15 mm envelope is the 6205 section. Searchable variants: MM205K, MM 205 K, MM-205-K, MM205.
A deep groove raceway carries radial load with modest thrust capacity in either direction from a single row, and it runs faster than an angular contact bearing of the same size because there is no fixed contact angle to load the balls axially. P4S tolerances hold bore, outside diameter and raceway runout to spindle-grade bands, so shaft position stays repeatable. The machined phenolic cage is light and quiet, holds a small reservoir of oil in the resin and sets a 120 °C continuous ceiling. Open on both faces, so the bearing takes its lubricant from the spindle system, which suits grease, oil-mist and oil-air feeds.
Unit Quantity: 1 Pc. One single bearing, open on both faces.
The 25 x 52 x 15 mm envelope drops into any housing bored for a 6205 section. Straight bore, so the inner ring seats directly on a cylindrical shaft journal. Operating temperature range: -30 °C to 120 °C.
Same envelope in a precision execution: SKF 6205/P4 and NSK 6205T12TP4. A 7205 angular contact bearing shares the 25 x 52 x 15 mm envelope but carries a fixed contact angle, which makes it a related size rather than a substitute.
$152.21
35 in stock
$73.22
35 in stock
$152.21
35 in stock
American manufacturers are sitting on a lot of stuff. The
Belt drives may appear simple, consisting of two wheels and a belt for power transfer.
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If you pulled a bearing off general industrial equipment at random, there’s a good chance
Our team can locate, cross-reference, and source all parts.
Our team can locate, cross-reference, and source all parts.
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