Server Rail Selection Table: by U Height, Load, Rack Depth

U height Rail type Installation Search

Model	U height	Load	Rail type	Extension	Installation	Chassis fit
MS-FMR-60 Universal Server Rails	1U, 2U, 3U, 4U	Up to 60 kg per pair	Friction	Friction Sliding	Screw-mounted	436–440 mm
MS-FMR-SW-100 Sliding Rack Rails	1U, 2U, 3U, 4U	80–100 kg per pair	Friction	Friction Sliding	Tool-less	430–443 mm
MS-FMR-1U2U-115 Sliding Rack Rails	1U, 2U, 3U, 4U	Over 100 kg per pair	Friction	Friction Sliding	Tool-less	Up to approx. 439 mm
MS-BBR-1U2U-80 Sliding Rack Rails	1U, 2U, 3U, 4U	80–100 kg per pair	Ball bearing		Screw-mounted	436–439 mm
MS-TLS-120 Sliding Rack Rails	1U, 2U, 3U, 4U	Over 100 kg per pair	Ball bearing		Tool-less	430–435 mm
MS-FMR-2U-100 Sliding Rack Rails	1U, 2U, 3U, 4U	80–100 kg per pair	Friction	Friction Sliding	Tool-less	436–439 mm
MS-BBR-180 Sliding Rack Rails	5U+	Over 100 kg per pair	Ball bearing		Screw-mounted	436–438 mm
MS-FIX-1U Fixed Rack Rails	1U, 2U, 3U, 4U	80–100 kg per pair	Fixed support (non-sliding)	Non-Sliding / Static	Screw-mounted	430–448 mm (four width classes)
MS-FIX-80 Fixed Rack Rails	1U, 2U, 3U, 4U	80–100 kg per pair	Fixed support (non-sliding)	Non-Sliding / Static	Screw-mounted	430–448 mm (four width classes)
MS-FIX-40 Fixed Rack Rails	1U, 2U, 3U	Up to 60 kg per pair	Fixed support (non-sliding)	Non-Sliding / Static	Screw-mounted	440–443 mm

Load ratings are per pair at the stated extension. Side clearance, travel and locking details are on each product page; if a value is missing, ask and we will confirm it against the drawing.

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