Reportable Segments (Tables)

3 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Schedule of segment information

Segment performance is evaluated based on segment net sales and operating income. Items not allocated to segment operating income include corporate administrative expenses and certain other amounts.

	Three Months Ended
	June 30, 2018			July 1, 2017
Net External Sales
Plain	$	78,525		$	72,653
Roller		35,870			31,413
Ball		18,074			15,780
Engineered Products		43,516			44,051
	$	175,985		$	163,897
Gross Margin
Plain	$	30,616		$	28,450
Roller		14,957			12,788
Ball		7,279			6,175
Engineered Products		14,887			14,603
	$	67,739		$	62,016
Selling, General & Administrative Expenses
Plain	$	6,362		$	6,449
Roller		1,624			1,571
Ball		1,602			1,615
Engineered Products		5,360			5,277
Corporate		14,627			12,866
	$	29,575		$	27,778
Operating Income
Plain	$	21,687		$	21,235
Roller		13,332			11,216
Ball		5,618			4,495
Engineered Products		10,634			8,217
Corporate		(15,273	)		(13,204	)
	$	35,998		$	31,959
Intersegment Sales
Plain	$	1,597		$	1,156
Roller		4,095			3,409
Ball		800			528
Engineered Products		9,138			8,173
	$	15,630		$	13,266