Rexroth A7V Series Hydraulic Pump Parts & Rotary Group
100% interchangeable rotary group & spare parts engineered for Bosch Rexroth A7V dual-circuit bent-axis variable axial piston pumps, in-stock with OEM-grade quality.
- ✓100% Interchangeable
- ✓Durable & High-Wear Resistance
- ✓Large Stock & Fast Shipping
Key Specifications
Item | Details | |
Brand | HYLINK | |
Product Category | Hydraulic Variable Pump Spare Parts / Rotary Group / Overhaul Repair Kits | |
Compatible Brand | Replacement for Bosch Rexroth (A7V Single & A8V Dual Pump Series) — 100% Interchangeable | |
A7V Frame Sizes | A7V28 / A7V55 / A7V80 / A7V107 / A7V160 / A7V200 / A7V225 / A7V250 / A7V355 / A7V500 / A7V1000 | |
Applicable Machines | Heavy excavators, mobile cranes, rotary drilling rigs, mining machinery, and industrial hydraulic power units | |
Minimum Order Quantity | 1 Piece | |
Delivery Time | 1–3 days for in-stock items / 5–8 days for standard orders | |
Price | Inquire for a direct factory quote | |
Warranty | 6 months against manufacturing and material defects | |
Overview
HYLINK supplies precision-engineered Bosch Rexroth A7V series (A7V28, A7V55, A7V80, A7V107, A7V160, A7V200, A7V225, A7V250, A7V355, A7V500, A7V1000) bent-axis axial piston variable pump replacement parts and complete rotary group overhaul kits. Designed for high-demand industrial and mobile open-circuit hydraulic systems, all components strictly conform to original Bosch Rexroth engineering dimensions and tolerances, providing seamless fit and reliable operation.
Product Overview
The Bosch Rexroth A7V (single variable displacement pump) bent-axis axial piston pumps are trusted components across heavy construction and industrial machinery. Subjected to continuous heavy hydraulic loads, high input speeds, and severe duty cycles, internal rotating elements—such as the drive shaft, cylinder block, spherical pistons with rings, center pin, and valve plate—undergo gradual mechanical wear. Surface degradation over time can cause internal bypass leakage, decreased discharge flow, overheating, and pressure instability.
HYLINK manufactures high-precision complete replacement rotary groups and individual spare parts across the full spectrum of A7V frame sizes. Manufactured from high-tensile forged alloy steel and specialized anti-friction materials, each part undergoes micro-precision CNC machining and 3D coordinate measuring machine (CMM) quality validation. This enables equipment rebuilders and service technicians to overhaul worn rotating assemblies directly without replacing costly outer pump casings, significantly reducing maintenance costs while minimizing machine downtime.
Available Components
Below is the standard component list for Bosch Rexroth A7V series hydraulic pumps. Individual spare parts and complete overhaul repair kits are both available:
Item No. | Part Name | Qty. |
1 | Keyed Shaft | 1 |
2 | Cylinder Block | 1 |
3 | Bearing Plate | 1 |
4 | Center Pin | 1 |
5 | Center Spherical Ring | 1 |
6 | Piston | 7 |
7 | Piston Ring | 7 |
8 | Connecting Rod | 7 |
9 | Retainer Plate | 1 |
10 | Bushing | 1 |
11 | Valve Plate | 1 |
12 | Belleville Spring | 1 |
13 | Spring Seat | 1 |
Quality Assurance & Manufacturing
Every HYLINK pump and replacement part undergoes strict quality control before shipment:
l Dimensional accuracy — checked with high-precision CMM (Coordinate Measuring Machines) to guarantee an exact fit with original pump housings.
l Material metallurgy — manufactured from premium forged steel and high-wear-resistant alloys to prevent premature fatigue.
l 100% performance test — every complete pump assembly is tested on our dynamic hydraulic test rig for pressure, flow rate and efficiency under full working load.
Packing, Shipping & Warranty
l Packaging — anti-rust protective film + heavy-duty foam cushioning + standard export fumigation-free wooden case (reinforced carton for small spare parts).
l Shipping — express courier (DHL / FedEx) for urgent repair orders; sea or air cargo for bulk orders.
l Warranty — 6 months quality assurance against manufacturing and material defects from the delivery date. In the event of a confirmed quality defect, HYLINK provides hassle-free replacement.
FAQ
Q: Are your SBS pump parts interchangeable with genuine Caterpillar parts?
A: Yes. All parts are produced to original specifications and dimensions and are 100% interchangeable — no modification is required during installation.
Q: What is the minimum order quantity?
A: 1 piece. We supply both individual components and complete rotary group / repair kits.
Q: How fast can you ship?
A: In-stock items are dispatched within 1–3 days; standard production orders take 5–8 days. Express and sea/air freight are both available.
Q: How do I confirm the correct part for my machine?
A: Send us your excavator model, pump model (SBS80 / SBS120 / SBS140) and the part name or photo — our technical team will confirm the correct item before you order.
Q: What warranty do you offer?
A: 6 months against manufacturing and material defects, with replacement support for confirmed quality issues.