30502-52A00
KOYO/CHIK
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Parameter | Specification |
|---|---|
Bearing Type | Single-Direction Thrust Ball Bearing (Clutch Release Bearing) |
KOYO Designation | RCTS33SA3 |
Nissan OE Reference | 30502-52A00 (also 30502-52A60, 30502-53J00, and others) |
NSK Equivalent | 48TKA3301 / ZA-48TKA3301 |
Bore (d) | 33 mm (1.2992 in) |
Outer Diameter — Bearing Body (D) | 63.5 mm (2.5000 in) |
Overall Height (T) | 23 mm (0.9055 in) |
Release Height (T1) | 13 mm |
Total Assembly Width (W) | 68 mm |
Release Contact Diameter (C) | 48 mm |
The RCTS33SA3 is a single-direction thrust ball bearing: it accommodates axial load in one direction only and must not be subjected to radial load. In the clutch release position, this matches the actual duty cycle—the release bearing is loaded axially against the diaphragm spring when the pedal is depressed, and it is unloaded (or lightly loaded) when the clutch is engaged. The open thrust-ball design supports the rotational speeds and low friction torque required for smooth clutch actuation.
Like all thrust ball bearings, the RCTS33SA3 consists of a shaft ring, a housing ring, and a ball-and-cage assembly. The rings can be separated for inspection or replacement. During installation, the shaft ring must be mounted on the rotating shaft side and the housing ring on the stationary side—reversing them will cause the bearing to fail rapidly under the release load.
Item | Details |
|---|---|
MOQ | 100 pcs |
Stock Status | Generally available from stock; for bulk orders, availability depends on the production schedule. |
Packaging | Individual box + outer carton + pallet; neutral or customized packaging available for bulk orders |
Lead Time | 3–7 days for stock; 7–15 days for bulk; 15–25 days for customized/OEM orders |
Shipping Methods | Bulk orders: air / sea / rail. Sample orders: DHL / FedEx / UPS / TNT for B2B evaluation only |
Trade Terms | EXW, FOB, CIF, DDP (negotiable) |
Loading Port | Shanghai / Ningbo / Qingdao / Shenzhen (or as required) |
Sample Order | Available for B2B evaluation only; sample cost and freight to be confirmed |
OEM / ODM | Accepted for bulk orders; custom logo, packaging and labels available |
Quality Control | 100% inspection before shipment |
Item | Details |
|---|---|
Payment Methods | T/T, PayPal, Credit Card, etc. |
Payment Terms | Small orders: 100% payment in advance. Bulk orders: 30% deposit, 70% before shipment. Negotiable for long-term partners. |
Currency | USD / EUR / CNY |
Trade Terms | EXW, FOB, CIF, DDP (negotiable) |
Invoice | Commercial invoice, packing list and required shipping documents provided |
Notes: Final supply and payment terms depend on order quantity, destination and stock availability. Please contact us for an exact quotation.