Precision Sealing for High-Performance Servo Systems

The DMHUI BH6656E HTCY Oil Seal (24×66×6.5mm) is engineered for precision-driven servo motor applications where accuracy and cleanliness are critical. Featuring a compact profile and double-lip sealing structure, it helps maintain stable internal lubrication while minimizing the risk of external contamination.

Designed to match FANUC servo motor A06B-0243-B101, this seal supports consistent operation in high-speed, tightly controlled environments.

Key Points

Servo Motor-Specific Design
Developed for precision equipment, ensuring compatibility with FANUC servo motor assemblies where tight tolerances are required.

HTCY Double Lip Sealing Structure
Combines a primary oil sealing lip with a secondary dust lip, helping maintain internal lubrication while reducing the entry of particles.

Enhanced Dust Resistance
Suitable for environments where fine dust or debris may affect sensitive components, helping protect internal systems.

High-Quality NBR Material
Provides dependable resistance to lubricants and oils while maintaining elasticity during continuous operation.

Precision Compact Dimensions
Exact 24×66×6.5mm sizing ensures proper fit in compact servo motor housings, where even small deviations can impact performance.

Product Info

Product Name: Automated Robotic Arms Oil Seal BH6656E
OEM Part Number: BH6656E
Seal Type: HTCY (Double Lip with Dust Protection)
Material: Nitrile Rubber (NBR)
Dimensions:
Shaft (ID): 24mm
Bore (OD): 66mm
Width: 6.5mm
Primary Application: FANUC Servo Motor A06B-0243-B101
Package includes: 1 x BH6656E Oil Seal (24×66×6.5mm)

Servo systems require consistent sealing performance to maintain operational stability. DMHUI designs seals that align with the requirements of compact, high-speed machinery.

Double Lip Protection System
The dual-lip configuration helps balance oil retention and contamination control.

Flexible NBR Sealing Layer
Maintains contact with the shaft during rotation, helping reduce wear and maintain sealing efficiency.

Accurate Dimensional Control
Manufactured to tight tolerances for reliable installation in precision assemblies.

Ideal For Use In
Servo Motors:
FANUC servo motor systems and similar precision drive units
Automation Systems:
CNC machines, robotic systems, and automated production lines
Industrial Equipment:
Applications requiring compact, dust-resistant rotary shaft sealing

FAQ

Q: Is this seal exactly the same as the original BH6656E?
A: Yes. This DMHUI seal is manufactured to match the OEM BH6656E specifications: HTCY type, NBR material, and dimensions 24x66x6.5mm. It is a direct replacement for the seal used in FANUC servo motor A06B-0243-B101.

Q: I see another seal listed as 24x66x6.6mm (BE6656F). Can I use that instead?
A: No. The width difference (6.5mm vs 6.6mm) is critical. The BH6656E seal is designed for a 6.5mm cavity depth. Using a 6.6mm seal may result in an improper fit, potential housing damage, or incorrect sealing pressure. Always match the exact width.

Q: How do I confirm this is the right seal for my motor?
A: Check your motor model number (A06B-0243-B101) and the original seal part number (BH6656E). You can also measure the shaft (24mm), housing bore (66mm), and cavity width (6.5mm) from your existing seal or motor housing. Please note that size is not the sole factor; selection should be based on actual operating conditions and the specific pump type.

Q: What is the proper installation method?
A: Clean the shaft and bore thoroughly. Apply a thin film of clean grease to the seal lip. Use a flat installation tool or appropriately sized socket to press the seal squarely into the housing bore, applying even pressure to the outer metal case only. The double-lip side should face outward (toward the external environment) for dust exclusion.

Q: Do you offer other seals for FANUC servo motors?
A: Yes. We stock a range of seals for various FANUC motor models, including BH6656E, BE6656F, BE6657F, and others. Search our store by OEM number or motor model.

Note: This product is an aftermarket replacement component. Always verify the OEM part number and dimensions from your original seal or equipment manual prior to purchase. Correct installation is essential for optimal sealing performance and motor protection.

Trust in quality, choose DMHUI
DMHUI delivers sealing components designed for precision systems. Choose a solution that supports stable operation and consistent performance in your servo equipment.