Type A Roller Upper Rudder Bearing (CB*789-87) – Compact & Reliable Steering Support
Product Overview
Our Type A Roller Upper Rudder Bearing is a lightweight, high-performance solution designed for small vessels with moderate rudder loads. Compliant with CB*789-87 standards, it ensures smooth steering operation for boats where rudder rotation is limited.
Key Features & Benefits
✔ Compact & Lightweight – Ideal for small to medium-sized vessels
✔ Diameter Range – ø40mm to ø150mm (custom sizes available)
✔ Low-Friction Roller Design – Ensures easy rudder movement
✔ CB*789-87 Certified – Meets marine industry standards for reliability
✔ Cost-Effective – Budget-friendly without compromising quality
| Type | Dimensions (mm) | ||||||||||||
| d | d2 | D1 | D2 | d0 | d1 | t | h | h1 | H* | H | H1 | ||
| A | 40 | 40 | 200 | 108 | 170 | 34 | 39 | 14 | 10 | 36 | 14 | 60 | 22 |
| 50 | 50 | 210 | 120 | 180 | 44 | 49 | 14 | 10 | 40 | 18 | 66 | 22 | |
| 60 | 60 | 230 | 140 | 200 | 54 | 59 | 15 | 10 | 44 | 20 | 70 | 25 | |
| 70 | 70 | 260 | 155 | 220 | 60 | 69 | 15 | 10 | 46 | 21 | 72 | 25 | |
| 80 | 80 | 290 | 180 | 250 | 70 | 79 | 18 | 12 | 49 | 24 | 79 | 25 | |
| 90 | 90 | 320 | 200 | 280 | 80 | 89 | 20 | 12 | 58 | 29 | 91 | 30 | |
| 100 | 100 | 340 | 220 | 300 | 90 | 98 | 20 | 12 | 65 | 30 | 94 | 34 | |
| 110 | 110 | 360 | 240 | 320 | 100 | 108 | 20 | 12 | 69 | 34 | 98 | 34 | |
| 120 | 120 | 380 | 260 | 340 | 114 | 118 | 20 | 14 | 72 | 37 | 102 | 34 | |
| 130 | 130 | 410 | 290 | 370 | 114 | 128 | 22 | 14 | 74 | 38 | 112 | 36 | |
| 140 | 140 | 440 | 310 | 395 | 124 | 138 | 25 | 14 | 77 | 39 | 113 | 36 | |
| 150 | 150 | 460 | 330 | 415 | 134 | 148 | 25 | 14 | 79 | 42 | 117 | 36 | |
The description/sizes may be different with goods, please check with us when order.
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