store 
Central Surplus Bearing Finder
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
Availability:
1 in stock
Super precision angular contact ball bearing, 40 x 68 x 15 mm, 15° contact angle, ABEC 7 / P4S, phenolic cage. Universal set of 2, medium preload.
List Price
$297.42
1 in stock
On the Shelf & Ready to Ship
On all orders
No Risk, No Hassle
| MFR / Brand | Barden |
|---|---|
| Model | 108HCDUM |
| Bearing Type | Angular Contact Ball Bearing, Open |
| ID | 40 mm |
| OD | 68 mm |
| Base Number | 108HC |
|---|---|
| Industry Terms | super precision angular contact spindle bearing, machine tool spindle bearing, duplex bearing |
| Common Misspellings | Bardon 108HCDUM, Barden 108-HC-DUM, Barden 108HCUM |
| Application Types | Machine tool spindles, grinding spindles, high-speed motor spindles |
| Overall Width | 15 mm |
| Mpn Variants | 108HCDUM, 108 HC DUM, 108HCUM, 108-HCDUM, 108HC DUM |
| Arrangement Configuration | Universal set of 2 (DU), mounts DB, DF or DT |
| Precision Class | ABEC 7 / P4S |
| Additional Attributes | Cage type: textile laminated phenolic resin, outer ring centred. Min chamfer rs: 1.0 mm; shaft shoulder da: 46 mm; housing shoulder Da: 62 mm. Barden standard preload range: Light 102 N, Medium 353 N, Heavy 743 N. |
| Dynamic Load Rating | 20,400 N |
| Static Load Rating | 16,000 N |
| Item Weight | 0.19 kg per bearing |
| Cage Material | Phenolic |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Snap Ring Included | No |
| Limiting Speed | 20,000 rpm grease; 34,000 rpm oil |
| Harmonization Code | 8482.10.50 |
| Contact Angle | 15° |
| Preload | Medium (M), 353 N standard preload |
| Bearing Material | 100Cr6 (SAE 52100) chrome steel rings, steel balls |
| Cross Reference 1 | FAG B7008C.T.P4S |
|---|---|
| Cross Reference 2 | SKF 7008 CD/P4A |
| Cross Reference 3 | NSK 7008C P4 |
| Cross Reference 4 | Timken Fafnir 2MM9108WI |
The Barden 108HCDUM is a matched set of two super precision angular contact ball bearings from the Barden 100 series metric spindle range, current HC design. Each bearing has a 15° contact angle and a phenolic cage, and the set is universally ground with medium preload.
108 — base number: 100 series metric spindle bearing, bore code 08 = 40 mm bore.
H — textile laminated phenolic resin cage, outer ring centred.
C — 15° contact angle.
DU — set of 2 universal bearings; rings of the same width, so the set installs DB, DF or DT.
M — medium preload; no numerals follow, so Barden standard medium preload applies.
Bore Diameter: 40 mm. The bearings fit a 40 mm spindle journal.
Outside Diameter: 68 mm. The housing bore is sized to 68 mm.
Overall Width: 15 mm. Each bearing occupies 15 mm of axial space, 30 mm for the pair.
Contact Angle: 15°. The low angle favors high speed and radial stiffness over pure thrust capacity.
Dynamic load rating: 20,400 N. This figure sets the basis for fatigue life calculation.
Static load rating: 16,000 N. This is the load limit before permanent raceway deformation at rest.
Limiting Speed: 20,000 rpm grease; 34,000 rpm oil. Oil lubrication raises the usable speed ceiling.
Preload: Medium (M), 353 N standard preload. Medium preload trades some speed headroom for higher spindle stiffness.
Cage Material: Phenolic. The outer-ring-centred laminated phenolic cage suits high-speed running.
Precision Class: ABEC 7 / P4S. P4S combines ABEC 7 dimensional tolerances with ABEC 9 running accuracy.
Bearing Material: 100Cr6 (SAE 52100) chrome steel rings, steel balls. Through-hardened chrome steel is the standard for spindle-grade bearings.
Item weight: 0.19 kg per bearing. The set of two weighs 0.38 kg.
Minimum chamfer rs is 1.0 mm. Shaft shoulder diameter da is 46 mm and housing shoulder diameter Da is 62 mm.
This listing is a set of 2 bearings. The two bearings form a universal duplex set with medium preload and mount back-to-back (DB), face-to-face (DF) or in tandem (DT).
The ISO designation for this envelope and angle is 7008C. Barden lists FAG B7008C.T.P4S as the matching FAG part. SKF 7008 CD/P4A, NSK 7008C P4 and Timken Fafnir 2MM9108WI share the same 40 x 68 x 15 mm envelope and 15° contact angle.
$760.47
16 in stock
$141.11
255 in stock
Rockwell’s own product page for the Kinetix 6000 is down
A faster way to search our bearing inventory Today we’re launching the Central Surplus Bearing
When an HMI panel goes dark or a PLC module stops communicating, the machine it
If you have ever watched a machine glide smoothly back and forth, tracing a perfect
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
