New Inventory Daily | Same Day Free Shipping

Sale!
13k+ reviews

Timken27684A-3Tapered Roller Bearing Cone – 3.0000 in Bore, 1.0000 in Width, Class 3 Precision

Condition: New – Open box
Condition Note: Made In USA, New Old Stock, Class 3 Precision

Availability:

1 in stock

Inch tapered roller bearing cone, 3.0000 in bore, 1.0000 in width, Class 3 precision, 111,000 N dynamic rating. Mates with a 27620 cup.

List Price

Original price was: $152.05.Current price is: $114.04.

1 in stock

Prefer eBay? Visit our store (opens in a new tab)

Small green outline icon of a shipping box with a clock, indicating delivery time
Availability

1 in stock

On the Shelf & Ready to Ship

Green shield badge reading "Same-Day Shipping" with box and delivery truck icons
Free Shipping

On all orders

Green shield icon with box and arrow graphic labeled "Free Returns"
Free Returns

No Risk, No Hassle

Specifications

Key Specifications

MFR / BrandTimken
MPN27684A-3
Model27684 A 3
Bearing TypeTapered Roller Bearing Cone
ID3.0000 in (76.2 mm)

Technical Specifications

ConditionNew – Open box
Series27600
Base Number27684A
Condition NoteMade In USA, New Old Stock, Class 3 Precision
Overall Width1.0000 in (25.400 mm)
Mpn Variants27684A-3; 27684-A *3; 27684A #3; 27684A3; 27684-A-3
Compatible With ReplacesMating cups: Timken 27620, Timken 27620RB
Precision ClassClass 3
Additional AttributesK Factor 1.40; C90 28,700 N; Ca90 20,400 N; Effective Load Centre 0.5 mm; Max shaft fillet radius 0.8 mm; da 84 mm; db 85 mm; Aa 1.3 mm; Ab 2.3 mm; G1 98.2; G2 41.8; Cg 0.120
Dynamic Load Rating111,000 N
Static Load Rating178,000 N
Rolling ElementsTapered Roller
Item Weight3.349 kg (7.38 lb)
Number Of Rows1
Bore TypeStraight
Harmonization Code8482.2
Part Number27684A-3
Cone Part Number27684A
Cone Width1.0000 in
Cone Backface To Clear Radius0.03 in
Cone Frontface Backing Diameter3.31 in
Cage Cone Frontface Clearance0.09 in
Cage Cone Backface Clearance0.05 in
Effective Center Location0.02 in

Cross-References

Cross Reference 1Koyo 27684A
Cross Reference 2NTN 4T-27684A
Cross Reference 3NSK 27684A
Cross Reference 4SKF 27684A
Cross Reference 5BCA / Bower 27684A
Seller Part Number: AQ1B2#F2G4F9

Product Description

What this part is

Timken 27684A-3 inch tapered roller bearing cone. Bearing Type: Tapered roller bearing cone — the inner ring carrying the tapered rollers and cage as one assembly. Series: 276. Base Number: 27684A. Bore Diameter: 3.0000 in (76.2 mm). Overall Width: 1.0000 in (25.400 mm). Bore Type: Straight. Rolling Elements: Tapered Roller. Number Of Rows: 1. Item Weight: 3.349 kg (7.38 lb).

Decoding the designation

27684A — Timken base cone number in the 276 inch series, 3.0000 in bore.

*3 — Timken Precision Class 3. Tighter running and mounting tolerance than standard class, giving lower running vibration and closer shaft location. The same class is written 27684A-3, 27684A *3 and 27684A #3.

What these specs mean in practice

Dynamic Load Rating: 111,000 N (C1, one million revolutions). Static Load Rating: 178,000 N. Dynamic radial rating at 90 million revolutions (C90): 28,700 N. Dynamic axial rating at 90 million revolutions (Ca90): 20,400 N. K Factor: 1.40. A K of 1.40 is a steep roller angle, so this cone carries a large thrust share relative to its radial rating.

Mounting data

Effective Load Centre: 0.5 mm. Maximum fillet radius on the mating shaft: 0.8 mm (0.030 in). Shaft Backing Shoulder Diameter, frontface (da): 84 mm (3.31 in). Shaft Backing Shoulder Diameter, backface (db): 85 mm (3.35 in). Cage location relative to backface (Aa): 1.3 mm. Cage location relative to frontface (Ab): 2.3 mm. G1 Factor: 98.2. G2 Factor: 41.8. Geometry Factor (Cg): 0.120.

Quantity and configuration

Unit Quantity: 1 Pc. Cone only. Matching cups are the Timken 27620 and 27620RB.

Interchange guidance

27684A is an industry-standard inch tapered roller bearing cone number. Koyo, NTN, NSK, SKF and BCA/Bower all build a 27684A to the same boundary dimensions, and all interchange with this cone. Precision Class 3 is a Timken tolerance grade; a standard-class 27684A from any maker fits the same envelope but holds a wider tolerance band.

You May Also Like

Double-Row Spherical Roller Bearing, 45 x 85 x 23 mm, C3 Clearance, W33 Lubrication Groove, Cylindrical Bore, 1 Pc
22209ETGPC3W33

$43.38

64 in stock

Add to cart
Angular Contact Ball Bearing Matched Pair - 20 mm ID, 47 mm OD, 14 mm Width, Open, 40°, P5, Light Preload
7204BTVP.P5.DUL

Original price was: $141.11.Current price is: $105.83.

255 in stock

Add to cart
Precision Angular Contact Ball Bearing, 45 x 85 x 19 mm, Counterbored Outer Ring, Phenolic Cage, ABEC 3, Open
RM209WICR

Original price was: $83.16.Current price is: $62.37.

39 in stock

Add to cart

Need help finding the right part?

Our team can locate, cross-reference, and source all parts.

Assortment of MRO parts including motor, bearing, gears, cylinder and valve

News

Excess MRO Inventory Depreciating on Your Shelf

The dead stock on your shop floor is not an

MRO Parts Fulfillment. What Fast Really Means

A shipping cutoff banner measures a vendor’s dock. It tells

Additional Resources

Need help finding the right part?

Our team can locate, cross-reference, and source all parts.

Get In Touch
Need help finding the right part?

Our team can locate, cross-reference, and source all parts.

Get In Touch

Sort

Brand

Price

MPN

Categories

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.