Ronstan
Ronstan Series 40 Ball Bearing Block - Double - Becket - Swivel Head
Out of StockNewSKU: RF40210
$80.69$94.93per unit
1
Secure Checkout
Shipping Available
Returns Available
This item is currently out of stock.
Special order from Ronstan — Estimated 2–4 weeks.
Description
Series 40 Ball Bearing Block - Double - Becket - Swivel Head
Features:
- Low friction Acetal or Torlon® bearing system
- Lightweight
- Cheek cut-outs for easy bearing maintenance
Sheaves running on Acetal or Torlon® ball bearings provide high performance & low friction. The 2-stage ball bearing system provides consistent performance over the full load range.Features a swivel shackle head for full 360° rotation.
Applications:
- Mainsheet
- Halyard
- Vang
- Spinnaker control lines on off-the-beach catamarans, one design classes and sportsboats up to 8m (26ft)
Accessories
No accessories listed for this product.
Specifications
| SKU | RF40210 |
| UPC | 9316800557370 |
| Brand | Ronstan |
| Category | Sailing |
| Country of Origin | — |
| Weight | 0.3 |
| Dimensions | 4 x 3 x 2 |
| Status | Active |
| Last Synced | 10/7/2026, 2:05:30 AM |
Compliance & Shipping
Returnable
Product Literature
No literature or manuals available for this product.
Customer Reviews
0.0
0 reviews
5
0
4
0
3
0
2
0
1
0
Only customers who purchased this item can write a review.
No reviews yet. Purchased this item? Be the first to review it.
Frequently Bought Together
Compare Key Features
| Feature |  Ronstan Series 40 Ball Bearing Block - Double - Becket - Swivel Head CURRENT |  Ronstan Series 30 Ball Bearing Orbit Block - Triple - Becket |  Harken 57mm Carbo Air Block w/Swivel |  Barton Marine Ratchet Block - 55mm |  Harken 16mm Block |
|---|---|---|---|---|---|
| Price | $80.69 | $57.81 | $53.93 | $111.66 | $17.21 |
| Brand | Ronstan | Ronstan | Harken | Barton Marine | Harken |
| Condition | New | New | New | New | New |
| Availability | Out of Stock | In Stock | In Stock | In Stock | In Stock |
| Weight | 0.3 | 0.19 | 0.3 | 0.3 | 0.1 |
| Dimensions | 4 x 3 x 2 | 4 x 2 x 2 | 6 x 3 x 1 | 6 x 3 x 2 | 3 x 2 x 1 |
| SKU | RF40210 | RF35312 | 2600 | 90500 | 404 |
| Country | — | INDONESIA | UNITED STATES | — | UNITED STATES |
| View Item | View Item | View Item | View Item | View Item |
You Might Also Need
C. Sherman Johnson
C. Sherman Johnson Closed Body Jaw to Swage Tubular Turnbuckle f/1/8" Wire
MPN: 26-412
$39.53
In Stock
More from Ronstan
View All
Related Products
Customers Also Viewed
Forespar Performance Products
Forespar 27"-48" Twist-Lock Steering Control Arm Fits 7/8"-1" Wheels
MPN: 104018
$152.42
In Stock
Wichard Marine
Wichard HR Quick Release Snap Shackle w/Large Bail - Length 4-3/4"
MPN: 2776W
$274.53
In Stock
Frequently Asked Questions
Price
$80.69